format-version: 1.2 date: 11:01:2011 14:33 auto-generated-by: OBO-Edit 2.1-beta7 subsetdef: Angiosperm "Terms for angiosperms" subsetdef: Arabidopsis "Term used for Arabidopsis" subsetdef: Citrus "Term used for citrus" subsetdef: Maize "Term used for maize" subsetdef: Musa "Terms used for banana" subsetdef: Poaceae "Term used for grasses" subsetdef: Potato "Term used for potato" subsetdef: reference "reference plant structure term" subsetdef: Rice "Term used for rice" subsetdef: Tomato "Term used for tomato" subsetdef: TraitNet "Plant Functional Traits" default-namespace: plant_ontology ontology: po [Term] id: PO:0000001 name: embryo proper namespace: plant_structure def: "An embryonic plant structure that is the body of a developing embryo attached to the maternal tissue in an ovule by a suspensor." [POC:rw] comment: The embryo proper is the entire embryo exclusive of the suspensor. xref: OBO_SF_PO:3132560 is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0000002 name: anther wall namespace: plant_structure def: "A multicellular layer with outer epidermis and an inner endothecium." [GR:pj] subset: reference is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009070 ! pollen sac [Term] id: PO:0000003 name: whole plant namespace: plant_structure def: "A plant structure which is a whole organism." [POC:curators] comment: Examples include seed PO:0009010 and embryo PO:0009009. subset: reference subset: TraitNet synonym: "gametophyte" NARROW [] synonym: "seedling" NARROW [] synonym: "sporophyte" NARROW [] xref: OBO_SF_PO:2968335 is_a: PO:0009011 ! plant structure [Term] id: PO:0000004 name: in vitro plant structure namespace: plant_structure def: "A plant structure that was derived from part of a plant and involves microbe-free growth in a sterile environment." [POC:curators] comment: An example of a sterile culture environment is growth on or in a nutrient medium in a Petri dish or test tube. Microbes may be intentionally added to the culture environment, such as in co-culture with Agrobacterium. xref: OBO_SF_PO:2958948 is_a: PO:0009011 ! plant structure [Term] id: PO:0000005 name: cultured cell namespace: plant_structure def: "In vitro grown isolated cells and small cell aggregates that proliferate while suspended in liquid sterile medium or spread on a solid agar medium." [TAIR:ki] comment: In cell cultures, the cells are no longer organized into tissues. synonym: "cell suspension" RELATED [] is_a: PO:0000004 ! in vitro plant structure [Term] id: PO:0000006 name: cultured protoplast namespace: plant_structure def: "In vitro isolated cells from which the entire cell wall has been enzymatically removed." [TAIR:ki] is_a: PO:0000005 ! cultured cell [Term] id: PO:0000007 name: cultured leaf cell namespace: plant_structure def: "In vitro grown isolated cells and small cell aggregates that originated from isolated leaf protoplasts (after they re-established cell wall, or from callus that was induced from leaf tissue)." [TAIR:ki] is_a: PO:0000005 ! cultured cell [Term] id: PO:0000008 name: cultured root cell namespace: plant_structure def: "In vitro grown isolated cells and small cell aggregates that originated from isolated protoplasts after they re-established cell wall, or from callus that was induced from segment of root." [TAIR:ki] is_a: PO:0000005 ! cultured cell [Term] id: PO:0000009 name: cutured callus namespace: plant_structure def: "In vitro grown cell aggregates that originated from isolated protoplasts, cell suspensions, or from callus that was induced in sterile medium supplemented by plant growth regulators." [TAIR:ki] is_a: PO:0000004 ! in vitro plant structure [Term] id: PO:0000010 name: cultured embryo namespace: plant_structure def: "In vitro isolated and maintained mature or immature zygotic embryos, somatic embryos or haploid embryos (derived from male gametophyte)." [TAIR:ki] is_a: PO:0000004 ! in vitro plant structure [Term] id: PO:0000011 name: cultured somatic embryo namespace: plant_structure def: "An embryo arising from previously differentiated somatic cells in vitro, rather than from fused haploid gametes, i.e., zygote." [TAIR:ki] is_a: PO:0000010 ! cultured embryo relationship: develops_from PO:0006091 ! embryogenic callus [Term] id: PO:0000012 name: apical hook namespace: plant_structure def: "Hook-like structure which develops at the apical part of the hypocotyl in dark-grown seedlings in dicots." [TAIR:ki] subset: reference synonym: "hypocotyl hook" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: develops_from PO:0020100 ! hypocotyl relationship: part_of PO:0006341 ! primary shoot [Term] id: PO:0000013 name: cauline leaf namespace: plant_structure def: "Leaf or pairs/whorls of leaves borne on the stem." [TAIR:ki] comment: In Arabidopsis, refers to the leaves that are borne on the elongated inflorescence branches. is_a: PO:0009025 ! vascular leaf [Term] id: PO:0000014 name: rosette leaf namespace: plant_structure def: "One of multiple leaves borne in a rosette - a group of leaves, generally borne at the base of the plant, that are separated by very short internodes." [TAIR:ki] comment: Arabidopsis, vegetative development is characterized by the production of the rosette leaves. is_a: PO:0009025 ! vascular leaf [Term] id: PO:0000015 name: cotyledon primordium namespace: plant_structure def: "A phyllome primordium that will develop into a cotyledon." [POC:curators] is_a: PO:0025128 ! phyllome primordium [Term] id: PO:0000016 name: lateral root primordium namespace: plant_structure def: "A root primordium that is derived from a root pericycle and will develop into a lateral root." [POC:curators] is_a: PO:0005029 ! root primordium relationship: derives_from PO:0006203 ! pericycle [Term] id: PO:0000017 name: leaf primordium namespace: plant_structure def: "A phyllome primordium that will develop into a leaf." [POC:curators] comment: Emerges as an outgrowth in the shoot apex (flanking the meristem). is_a: PO:0025128 ! phyllome primordium relationship: part_of PO:0000037 ! shoot apex [Term] id: PO:0000018 name: ovule primordium namespace: plant_structure def: "A primordium that will develop into an ovule." [POC:curators] is_a: PO:0025127 ! primordium [Term] id: PO:0000019 name: gynoecium primordium namespace: plant_structure def: "A primordium that will develop into a gynoecium." [POC:curators] is_a: PO:0025127 ! primordium [Term] id: PO:0000020 name: starch sheath cell namespace: plant_structure def: "OBSOLETE. Cells characterized by conspicuous and rather stable accumulation of starch." [ISBN:044174520] comment: Uninformative definition is_obsolete: true [Term] id: PO:0000021 name: petal primordium namespace: plant_structure def: "A phyllome primordium that will develop into a petal." [POC:curators] is_a: PO:0025128 ! phyllome primordium [Term] id: PO:0000022 name: cuticle namespace: plant_structure def: "A layer of fatty material, cutin, rather impervious to water, located on the outer walls of epidermal cells." [ISBN:0471245208] is_a: PO:0025161 ! portion of plant substance [Term] id: PO:0000023 name: casparian strip namespace: plant_structure def: "OBSOLETE: A band-like wall formation within primary walls that contains suberin and lignin; typical of endodermal cells in roots, in which it occurs in radial and transverse anticlinal walls." [ISBN:0471245208] comment: Comment: this term is now available in the cellular_component aspect of the Gene Ontology (GO:0048226). is_obsolete: true [Term] id: PO:0000024 name: filiform apparatus namespace: plant_structure def: "OBSOLETE: A complex of cell wall invaginations in a synergid cell similar to those in transfer cells." [ISBN:0471245208] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043680. subset: reference is_obsolete: true [Term] id: PO:0000025 name: root tip namespace: plant_structure def: "The portion of the root including the meristem and root cap." [TAIR:ki] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009005 ! root [Term] id: PO:0000026 name: primary root tip namespace: plant_structure def: "The portion of the primary root including the meristem and root cap." [TAIR:ki] is_a: PO:0000025 ! root tip relationship: part_of PO:0020127 ! primary root [Term] id: PO:0000027 name: lateral root tip namespace: plant_structure def: "The portion of the lateral root including the meristem and root cap." [TAIR:ki] is_a: PO:0000025 ! root tip relationship: part_of PO:0020121 ! lateral root [Term] id: PO:0000028 name: pollen tube tip namespace: plant_structure def: "Tip portion of the pollen tube that is rapidly growing." [TAIR:ki] comment: This term was made obsolete because it is a subcellular component. See GO for the term pollen tube tip (GO:0090404). Since a pollen tube tip is part_of a pollen tube, which is part of a pollen cell, annotations for pollen tube tip may also go to the more general term pollen tube cell (PO:0025195). is_obsolete: true consider: PO:0025195 [Term] id: PO:0000029 name: root hair tip namespace: plant_structure def: "Tip portion of an outgrowth of a root epidermal cell." [TAIR:ki] comment: This term was made obsolete because it is a subcellular component. Root hair tip (GO:0035619) has been added to GO. is_obsolete: true consider: PO:0000256 [Term] id: PO:0000030 name: septum namespace: plant_structure def: "A thin partition or membrane that divides a cavity or a mass of tissue, e.g., in anther, ovary or fruit." [APWeb:Glossary] is_a: PO:0009007 ! portion of plant tissue [Term] id: PO:0000031 name: lenticel namespace: plant_structure def: "A portion of ground tissue composed of a loosely-packed mass of cork cells occurring especially in the young stem, bark or even leaf of a plant, visible on the surface as a raised, often powdery-appearing spot." [ISBN:0471245208] comment: Gas can be exchanged through the lenticel. subset: TraitNet is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0000032 name: tetrad of microspores namespace: plant_structure def: "A portion of plant tissue consisting of four microspores that remained joined together shortly after meiosis. Each cell will give rise to a male gametophyte." [POC:rw] subset: reference is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0020047 ! microsporocyte relationship: has_part PO:0020048 ! microspore [Term] id: PO:0000033 name: fruit valve namespace: plant_structure def: "A valve that is a part of a fruit that splits apart when the fruit dehisces." [POC:rw] comment: A valve may develop from an entire carpel (as in Brassicaceae) or from part of a carpel (as in Fabaceae). subset: Arabidopsis xref: OBO_SF_PO:3132512 is_a: PO:0025228 ! valve relationship: part_of PO:0009001 ! fruit [Term] id: PO:0000034 name: vascular system namespace: plant_structure def: "A plant structure that includes the totality of the portions of vascular tissue in their specific arrangement in a whole plant or in a constituent part thereof." [ISBN:0-7167-1007-2, ISBN:0471245208, POC:curators] comment: The vascular system may also contain portions of ground tissue. subset: TraitNet is_a: PO:0009011 ! plant structure relationship: part_of PO:0000003 ! whole plant [Term] id: PO:0000035 name: cotyledon vascular system namespace: plant_structure def: "A vascular system that is part of a cotyledon." [TAIR:ki] is_a: PO:0000034 ! vascular system relationship: part_of PO:0008011 ! embryo vascular system relationship: part_of PO:0020030 ! cotyledon [Term] id: PO:0000036 name: leaf vascular system namespace: plant_structure def: "A phyllome vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a leaf." [POC:rw] is_a: PO:0025206 ! phyllome vascular system relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0000037 name: shoot apex namespace: plant_structure def: "A shoot axis that is the most distal part of a shoot system and has as parts a shoot apical meristem and the youngest leaf primordia." [POC:curators] subset: reference is_a: PO:0025029 ! shoot axis relationship: has_part PO:0000017 ! leaf primordium relationship: has_part PO:0020148 ! shoot apical meristem [Term] id: PO:0000038 name: primary endosperm cell namespace: plant_structure def: "Cell produced by the fusion of sperm cell nucleus and two polar nuclei of the central cell (or diploid secondary endosperm nucleus, in cases where two polar nuclei fuse together before double fertilization). The first cell of the endosperm, often tripoid." [TAIR:ki] is_a: PO:0025026 ! megagametophytic cell relationship: part_of PO:0009089 ! endosperm [Term] id: PO:0000039 name: shoot axis vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a a shoot axis." [POC:curators] comment: Can occur in a stem or branch. synonym: "branch vascular system" NARROW [] synonym: "stem vascular system" NARROW [] is_a: PO:0000034 ! vascular system relationship: part_of PO:0025198 ! shoot axis stele relationship: part_of PO:0025205 ! shoot system vascular system [Term] id: PO:0000040 name: adventitious root nodule namespace: plant_structure def: "Enlargement or swelling at position of dormant adventitious root primordium (on the stem), inhabited by nitrogen-fixing bacteria." [TAIR:ki] comment: Unlike the root nodules, these contain functioning chloroplasts in the nodule cortex and are therefore capable of carbon fixation. Note: stem nodule is commonly used term for this structure, although the nodules are formed at positions of dormant adventitious root primordia. synonym: "stem primordium" RELATED [] is_a: PO:0003023 ! root nodule relationship: part_of PO:0000042 ! shoot-borne root [Term] id: PO:0000041 name: epidermal cork cell namespace: plant_structure def: "One of the two types of short cells in the epidermis of grasses and bamboos. It is usually paired with silica cell." [TAIR:ki] comment: Developmentally different from periderm cork cell (i.e., phellem), produced by cork cambium. is_a: PO:0004718 ! short cell [Term] id: PO:0000042 name: shoot-borne root namespace: plant_structure alt_id: PO:0003007 alt_id: PO:0020129 def: "A post-embryonic root that develops from shoot tissue." [GR:pj, TAIR:ki] subset: reference subset: TraitNet synonym: "adventitious root" BROAD [] synonym: "aerial root" NARROW [] synonym: "stilt root" NARROW [] is_a: PO:0009005 ! root [Term] id: PO:0000043 name: crown root namespace: plant_structure def: "Adventitious root formed at the base of the growing stem (known as a crown)." [TAIR:ki] subset: reference is_a: PO:0003005 ! nodal root [Term] id: PO:0000044 name: prop root namespace: plant_structure def: "Adventitious root formed at stem nodes above the ground and growing directly into the soil." [TAIR:ki] comment: This term is perhaps best defined functionally to prop the plant up. subset: reference subset: TraitNet synonym: "brace root" RELATED [] is_a: PO:0003005 ! nodal root [Term] id: PO:0000045 name: embryonic root namespace: plant_structure def: "An embryonic plant structure that is a root that is initiated in a developing embryo." [POC:rw, TAIR:ki] subset: reference is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0000046 name: seminal root namespace: plant_structure def: "Root formed within the scutelar node of the embryo in some monocotyledonous plants." [TAIR:ki] subset: reference synonym: "lateral seminal root" RELATED [] synonym: "scutellar nodal root" RELATED [] synonym: "secondary root" RELATED [] is_a: PO:0000045 ! embryonic root is_a: PO:0003005 ! nodal root [Term] id: PO:0000047 name: leaf lamina epidermis namespace: plant_structure def: "A portion of leaf epidermis that is part of a leaf lamina." [POC:curators] is_a: PO:0006016 ! leaf epidermis relationship: part_of PO:0020039 ! leaf lamina [Term] id: PO:0000048 name: leaf lamina vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a leaf lamina." [POC:rw] is_a: PO:0000034 ! vascular system relationship: part_of PO:0000036 ! leaf vascular system relationship: part_of PO:0020039 ! leaf lamina [Term] id: PO:0000049 name: leaf lamina abaxial epidermis namespace: plant_structure def: "A portion of leaf lamina epidermis that covers the abaxial/lower surface of a leaf lamina." [POC:rw] is_a: PO:0000047 ! leaf lamina epidermis is_a: PO:0006019 ! leaf abaxial epidermis [Term] id: PO:0000050 name: leaf lamina adaxial epidermis namespace: plant_structure def: "A portion of leaf lamina epidermis that covers the adaxial/upper surface of a leaf lamina." [POC:rw] is_a: PO:0000047 ! leaf lamina epidermis is_a: PO:0006018 ! leaf adaxial epidermis [Term] id: PO:0000051 name: petiole epidermis namespace: plant_structure def: "A portion of leaf epidermis that is part of a petiole." [POC:rw, TAIR:ki] is_a: PO:0006016 ! leaf epidermis relationship: part_of PO:0020038 ! petiole [Term] id: PO:0000052 name: petiole vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a leaf petiole." [POC:rw] is_a: PO:0000034 ! vascular system relationship: part_of PO:0000036 ! leaf vascular system relationship: part_of PO:0020038 ! petiole [Term] id: PO:0000053 name: petiole cortex namespace: plant_structure def: "A portion of ground tissue that is part of a cortex and part of the petiole." [POC:curators, TAIR:ki] is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0005708 ! cortex relationship: part_of PO:0020038 ! petiole [Term] id: PO:0000054 name: petal vascular system namespace: plant_structure def: "A phyllome vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a petal." [POC:rw] is_a: PO:0025206 ! phyllome vascular system relationship: part_of PO:0005017 ! flower vascular system relationship: part_of PO:0009032 ! petal [Term] id: PO:0000055 name: bud namespace: plant_structure def: "An undeveloped shoot system." [POC:curators] subset: TraitNet xref: OBO_SF_PO:3016634 is_a: PO:0009006 ! shoot system [Term] id: PO:0000056 name: floral bud namespace: plant_structure def: "A bud that develops into a flower." [POC:curators] subset: TraitNet is_a: PO:0025084 ! reproductive bud [Term] id: PO:0000057 name: inflorescence bud namespace: plant_structure def: "A bud that develops into an inflorescence." [POC:curators] subset: Musa synonym: "male bud" NARROW [CO_125:0000049 "Term used for Musa to describe the usually persistent bud when it is only composed of bracts with male flowers."] is_a: PO:0025084 ! reproductive bud [Term] id: PO:0000058 name: vegetative bud namespace: plant_structure def: "A bud that develops into a shoot system that has as organ parts only vegetative organs." [POC:curators] xref: OBO_SF_PO:3020771 is_a: PO:0000055 ! bud [Term] id: PO:0000059 name: root initial cell namespace: plant_structure def: "Cell in the root apical meristem that by division gives rise to two cells one of which remains in the meristem, the other is added produces different root cells." [TAIR:ki] synonym: "root stem cell" RELATED [] is_a: PO:0020147 ! root apical meristem [Term] id: PO:0000060 name: root cortex-endodermis initial cell namespace: plant_structure def: "Cell that produces root cortex and endodermis. In direct contact with quiescent center." [TAIR:ki] synonym: "root cortex-endodermis stem cell" RELATED [] is_a: PO:0000059 ! root initial cell [Term] id: PO:0000061 name: lateral root-cap-epidermal initial cell namespace: plant_structure def: "Cell that produces lateral root-cap cells and root epidermis." [POC:curators] synonym: "lateral root-cap-epidermal stem cell" RELATED [] is_a: PO:0000059 ! root initial cell [Term] id: PO:0000066 name: epithem cell namespace: plant_structure def: "Cell of the mesophyll of a hydathode found between the xylem endings and the epidermis." [ISBN:0471245208, PMID:12662305] comment: Proposed to be involved in the retrieval of solutes from the xylem sap. xref: CL:0000074 is_a: PO:0025030 ! ground tissue cell relationship: part_of PO:0005660 ! hydathode [Term] id: PO:0000070 name: meristemoid namespace: plant_structure def: "A cell or a group of cells constituting an active locus of meristematic activity in a tissue composed of somewhat older, differentiating cells." [ISBN:0471245208, PO:syr] xref: CL:0000266 is_a: PO:0009002 ! plant cell [Term] id: PO:0000071 name: companion cell namespace: plant_structure def: "A specialized parenchyma cell associated with a sieve-tube member in angiosperm phloem and arising from the same mother cell as the sieve-tube member." [ISBN:0879015322] subset: TraitNet xref: CL:0000284 is_a: PO:0000074 ! parenchyma cell relationship: part_of PO:0005043 ! secondary phloem relationship: part_of PO:0006075 ! primary phloem [Term] id: PO:0000074 name: parenchyma cell namespace: plant_structure def: "A relatively unspecialized cell with a nucleate protoplast." [ISBN:0471245208] subset: TraitNet is_a: PO:0025030 ! ground tissue cell relationship: part_of PO:0005421 ! parenchyma [Term] id: PO:0000075 name: collenchyma cell namespace: plant_structure def: "Elongated living cells with unevenly thickened nonlignified primary walls." [ISBN:0471245208] subset: TraitNet is_a: PO:0025030 ! ground tissue cell relationship: part_of PO:0005423 ! collenchyma [Term] id: PO:0000076 name: chlorenchyma cell namespace: plant_structure def: "Parenchyma cell containing chloroplasts; a component of leaf mesophyll and other green parenchyma tissue." [ISBN:0471245208] subset: TraitNet xref: CL:0000472 is_a: PO:0000074 ! parenchyma cell relationship: part_of PO:0005426 ! chlorenchyma [Term] id: PO:0000077 name: sclerenchyma cell namespace: plant_structure def: "Usually dead cell variable in form and size, with more or less thick, often lignified, secondary walls." [ISBN:0471245208] subset: TraitNet xref: CL:0000276 is_a: PO:0025030 ! ground tissue cell relationship: part_of PO:0005427 ! sclerenchyma [Term] id: PO:0000078 name: transfer cell namespace: plant_structure def: "A cell with wall ingrowths (or invaginations) that increase the surface of the plasmalemma." [ISBN:0471245208] comment: Appears to be specialized for short-distance transfer of solutes. xref: CL:0000370 is_a: PO:0025030 ! ground tissue cell [Term] id: PO:0000079 name: fusiform initial namespace: plant_structure alt_id: PO:0000275 def: "An elongated cell with approximately wedge-shaped ends, found in the vascular cambium, which gives rise to the elements of the axial system in the secondary vascular tissues." [ISBN:0471245208] synonym: "xylem initial" RELATED [] synonym: "xylem mother cell" RELATED [] xref: CL:0000009 is_a: PO:0000295 ! cambial initial [Term] id: PO:0000081 name: axial cell namespace: plant_structure def: "A vascular cell derived from the fusiform cambial initial and oriented with its longest diameter parallel with the main axis of stem or root." [ISBN:0471245208] comment: These cells make up the axial system, also known as vertical or longitudinal system. subset: TraitNet xref: CL:0000363 is_a: PO:0009002 ! plant cell relationship: develops_from PO:0000079 ! fusiform initial [Term] id: PO:0000082 name: ray initial namespace: plant_structure def: "A cell in the vascular cambium that gives rise to ray cells of the secondary xylem and secondary phloem." [ISBN:0471245208] xref: CL:0000316 is_a: PO:0000295 ! cambial initial [Term] id: PO:0000084 name: sperm cell namespace: plant_structure alt_id: PO:0020098 def: "A gamete produced by an antheridium or a microgametophyte." [POC:curators] comment: The sperm (microgamete) is usually larger than the egg (megagamete). In angiosperms, sperm cells are usually two in number; during double fertilization, one fuses with the egg cell to produce a zygote while another fuses with the two polar nuclei of the central cell to give rise to endosperm. Male gametes may be defined as the motile gamete, rather than the smaller gamete. subset: reference synonym: "male gamete" EXACT [] synonym: "microgamete" EXACT [] synonym: "sperm nucleus" RELATED [] xref: CL:0000366 is_a: PO:0025006 ! gamete relationship: develops_from PO:0020097 ! generative cell [Term] id: PO:0000112 name: shoot axis epidermis namespace: plant_structure def: "A portion of shoot epidermis that is part of a shoot axis." [POC:curators] comment: Can occur on a stem or branch. synonym: "branch epidermis" NARROW [] synonym: "culm epidermis" RELATED [] synonym: "stem epidermis" NARROW [] is_a: PO:0006035 ! shoot epidermis relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0000115 name: socket cell namespace: plant_structure def: "Cell that surrounds a trichome and provides its support." [ISBN:0471245208, PMID:15319479] synonym: "cell located at the base of the trichome" RELATED [] synonym: "trichome support cell" RELATED [] xref: CL:0000297 is_a: PO:0025165 ! shoot epidermal cell disjoint_from: PO:0000332 ! epidermal pavement cell relationship: develops_from PO:0000349 ! epidermal initial [Term] id: PO:0000146 name: abscission zone namespace: plant_structure def: "A portion of plant tissue that is part of a plant structure that has as parts a separation layer and a protective layer and is involved in the abscission of the structure." [ISBN:047124529, POC:curators] synonym: "abscission layer" RELATED [] xref: GO:0009838 "abscission" is_a: PO:0009007 ! portion of plant tissue relationship: has_part PO:0006211 ! separation layer relationship: has_part PO:0006212 ! protective layer [Term] id: PO:0000191 name: synergid namespace: plant_structure def: "Cell, usually two in number, in the micropylar end of the embryo sac of angiosperms associated with the egg in the egg apparatus." [ISBN:047125208, TAIR:ki] subset: Angiosperm subset: reference xref: CL:0000288 is_a: PO:0025026 ! megagametophytic cell relationship: part_of PO:0020096 ! egg apparatus [Term] id: PO:0000198 name: free nuclear endosperm namespace: plant_structure def: "An endosperm in which at least the first karyokinesis is not followed by cytokinesis." [ISBN:0080374913, ISBN:0471245194] synonym: "cenocytic endosperm" RELATED [] synonym: "coenocytic endosperm" RELATED [] synonym: "nuclear endosperm" RELATED [] is_a: PO:0009089 ! endosperm [Term] id: PO:0000199 name: cellular endosperm namespace: plant_structure def: "Endosperm in which the first karyokinesis event is accompanied by cytokinesis." [ISBN:0080374913, ISBN:0471245194] is_a: PO:0009089 ! endosperm [Term] id: PO:0000200 name: micropylar endosperm namespace: plant_structure def: "A portion of plant tissue that is the region of the endosperm closest to the micropyle of the seed." [TAIR:lr] synonym: "micropylar region" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009089 ! endosperm [Term] id: PO:0000201 name: chalazal cyst namespace: plant_structure def: "A portion of plant tissue that is the part of the endosperm nearest the chalazal region of the ovule and forming a cyst-like structure." [ISBN:047124529, TAIR:lr] comment: Not in current literature. More like an attribute. synonym: "chalazal endosperm cyst" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009089 ! endosperm [Term] id: PO:0000207 name: nectary epidermis namespace: plant_structure def: "A portion of shoot epidermis that is part of the nectary." [POC:rw] is_a: PO:0006035 ! shoot epidermis relationship: part_of PO:0009035 ! nectary [Term] id: PO:0000223 name: shoot axis cortex namespace: plant_structure def: "A portion of ground tissue that is part of a cortex and part of a shoot axis." [ISBN:047124529, POC:curators] comment: Can occur in a stem or branch. subset: TraitNet synonym: "branch cortex" NARROW [] synonym: "stem cortex" NARROW [] is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0005708 ! cortex relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0000224 name: central zone namespace: plant_structure def: "An area of densely packed cells in the shoot apex that divide infrequently." [ISBN:0521288959, TAIR:lr] comment: Functions as a population of stem cells that replenishes the meristem. synonym: "central initiation zone" RELATED [] is_a: PO:0009013 ! meristem relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0000225 name: peripheral zone namespace: plant_structure def: "Organogenic region of the meristem,  characterized by higher rates of cell division." [ISBN:0521288959, TAIR:lr] synonym: "peripheral meristem" RELATED [] is_a: PO:0009013 ! meristem relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0000226 name: rib zone namespace: plant_structure def: "The region of the shoot apical meristem that lies below the central zone and is flanked by the peripheral zone." [ISBN:0521288959, TAIR:lr] synonym: "file meristem" RELATED [] is_a: PO:0009013 ! meristem relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0000229 name: floral meristem namespace: plant_structure def: "A portion of meristem tissue that gives rise to the floral organs." [GR:pj] synonym: "floral apical meristem" RELATED [] is_a: PO:0009013 ! meristem [Term] id: PO:0000230 name: inflorescence meristem namespace: plant_structure def: "A meristem that gives rise to an inflorescence." [GR:pj] is_a: PO:0009013 ! meristem relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0000232 name: axillary bud meristem namespace: plant_structure def: "A shoot meristem formed in the axil of the leaf." [TAIR:lr] synonym: "axillary meristem" RELATED [] is_a: PO:0006079 ! shoot meristem [Term] id: PO:0000244 name: functional megaspore namespace: plant_structure def: "The megaspore(s) that forms the embryo sac." [TAIR:lr] xref: CL:0000433 is_a: PO:0020019 ! megaspore [Term] id: PO:0000245 name: degenerate megaspore namespace: plant_structure def: "In monosporic and bisporic megasporogenesis: the megaspore(s) that would not participate in megagametogenesis." [TAIR:lr] xref: CL:0000475 is_a: PO:0020019 ! megaspore [Term] id: PO:0000252 name: endodermis namespace: plant_structure alt_id: PO:0006064 def: "A portion of ground tissue that is the inner most layer of a cortex and has a casparian strip in its anticlinal cell walls." [ISBN:047124529, POC:curators] comment: Forms a sheath around the vascular system. It may have secondary walls later, part_of cortex. synonym: "endodermoid" RELATED [] xref: SGF:3016668 is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0005708 ! cortex [Term] id: PO:0000256 name: root hair cell namespace: plant_structure def: "A root epidermal cell with a simple extension that is concerned with absorption of soil solution." [ISBN:0471245208] comment: This term is for an entire epidermal cell that contains a root hair extension. To describe only the cell extension, see root hair (GO:0035618) or root hair tip (GO:0035619). subset: TraitNet is_a: PO:0025164 ! root epidermal cell relationship: develops_from PO:0000262 ! trichoblast [Term] id: PO:0000258 name: root cortex namespace: plant_structure alt_id: PO:0003010 def: "A portion of ground tissue that is part of a cortex and part of a root." [ISBN:047125208, POC:curators] comment: In dicots and gymnosperms, the cortex consists of mainly parenchyma cells. In monocots sclerenchyma develops in addition to parenchyma. subset: TraitNet is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0005708 ! cortex relationship: part_of PO:0009005 ! root [Term] id: PO:0000262 name: trichoblast namespace: plant_structure def: "The smaller cell produced by the asymmetric division of a root epidermal cell that gives rise to a root hair." [ISBN:0471245208] synonym: "hair cell" RELATED [] xref: CL:0000299 is_a: PO:0025164 ! root epidermal cell relationship: develops_from PO:0000349 ! epidermal initial [Term] id: PO:0000263 name: atrichoblast namespace: plant_structure def: "A root epidermal cell that is formed after asymmetric division of an epidermal initial and does not give rise to a root hair." [ISBN:0387987819] synonym: "non-hair cell" RELATED [] xref: CL:0000332 is_a: PO:0025164 ! root epidermal cell relationship: develops_from PO:0000349 ! epidermal initial relationship: part_of PO:0006036 ! root epidermis [Term] id: PO:0000272 name: protoxylem namespace: plant_structure def: "A portion of xylem tissue composed of any of the first formed elements of the primary xylem." [ISBN:047125208] is_a: PO:0005352 ! xylem relationship: part_of PO:0005849 ! primary xylem [Term] id: PO:0000273 name: xylem element namespace: plant_structure def: "A cell making up xylem tissue." [ISBN:0471245208] comment: Occurs in the sporophytic phase of a plant life cycle. subset: TraitNet xref: CL:0000298 is_a: PO:0000081 ! axial cell [Term] id: PO:0000274 name: xylem fiber namespace: plant_structure def: "A fiber in xylem." [ISBN:0471245208] subset: TraitNet is_a: PO:0000273 ! xylem element relationship: part_of PO:0005848 ! secondary xylem [Term] id: PO:0000282 name: trichome namespace: plant_structure alt_id: PO:0004510 def: "A unicellular or multicellular plant structure that forms a non-sclerified outgrowth from the epidermis." [POC:curators] comment: This class is the union of unicellular trichome [narrow synonym of trichome cell (PO:0008030)] and multicellular trichome (PO:0025162). subset: TraitNet synonym: "non-secretory trichome" EXACT [] xref: CL:0000282 is_a: PO:0009011 ! plant structure relationship: part_of PO:0005679 ! epidermis [Term] id: PO:0000283 name: idioblast namespace: plant_structure def: "OBSOLETE. A cell in a tissue that markedly differs in form, size, or contents from other cells in the same tissue." [ISBN:0471245208] comment: This term was made obsolete because its a kind of attribute for a cell type. is_obsolete: true [Term] id: PO:0000284 name: subsidiary cell namespace: plant_structure alt_id: PO:0000296 def: "An epidermal cell associated with a stoma and at least morphologically distinguishable from the other epidermal cells." [ISBN:047124520] synonym: "accessory cell" RELATED [] xref: CL:0000270 is_a: PO:0025165 ! shoot epidermal cell disjoint_from: PO:0000332 ! epidermal pavement cell relationship: part_of PO:0002000 ! stomatal complex [Term] id: PO:0000289 name: sieve tube member namespace: plant_structure alt_id: PO:0000286 def: "One of the series of cells that make up a sieve tube; it shows a more or less pronounced differentiation between sieve plates (wide pores) and lateral sieve areas (narrow pores)." [ISBN:0471245208] comment: Also sieve tube element and the obsolete sieve tube segment. Occurs in the sporophytic phase of a plant life cycle. subset: TraitNet synonym: "sieve element" RELATED [] synonym: "sieve tube element" RELATED [] xref: CL:0000268 xref: CL:0000543 is_a: PO:0000081 ! axial cell relationship: part_of PO:0005043 ! secondary phloem relationship: part_of PO:0006075 ! primary phloem [Term] id: PO:0000290 name: tracheary element namespace: plant_structure def: "General term for any water conducting cell, tracheid or vessel member." [ISBN:0471245208] comment: Occurs in the sporophytic phase of a plant life cycle. subset: TraitNet xref: CL:0000672 is_a: PO:0000273 ! xylem element relationship: part_of PO:0005848 ! secondary xylem relationship: part_of PO:0005849 ! primary xylem [Term] id: PO:0000293 name: guard cell namespace: plant_structure def: "One of a pair of cells flanking the stomatal pore." [ISBN:0471245208] comment: They cause the opening and closing of the pore by changes in turgor. subset: TraitNet xref: CL:0000292 is_a: PO:0025165 ! shoot epidermal cell disjoint_from: PO:0000332 ! epidermal pavement cell relationship: develops_from PO:0000351 ! guard mother cell relationship: part_of PO:0002000 ! stomatal complex [Term] id: PO:0000295 name: cambial initial namespace: plant_structure alt_id: PO:0000080 def: "Cell in the vascular or cork cambium which by periclinal divisions produce cells to the outside or inside of the cambial axis." [POC:curators] synonym: "cambial cell" RELATED [] xref: CL:0000272 is_a: PO:0004011 ! initial cell relationship: part_of PO:0005598 ! vascular cambium [Term] id: PO:0000301 name: tracheid namespace: plant_structure def: "In the xylem, a dead elongated water-conducting cell in which at least the middle lamella of the end walls remains intact." [APWeb:Glossary] subset: TraitNet xref: CL:0000331 is_a: PO:0000290 ! tracheary element [Term] id: PO:0000309 name: nectary parenchyma namespace: plant_structure def: "A portion of parenchyma tissue that is part of a nectary." [POC:rw] is_a: PO:0009035 ! nectary relationship: part_of PO:0005421 ! parenchyma [Term] id: PO:0000332 name: epidermal pavement cell namespace: plant_structure def: "A shoot epidermal cell that is relatively unspecialized at maturity." [POC:curators] comment: May have sinuous anticlinal cell walls that overall give a jigsaw like appearance to the epidermis. Pavement cells are epidermal cells that are not directly associated with a stomatal complex or trichome at maturity, but they share similar developmental origins. xref: CL:0000400 is_a: PO:0025165 ! shoot epidermal cell disjoint_from: PO:0000115 ! socket cell disjoint_from: PO:0000284 ! subsidiary cell disjoint_from: PO:0000293 ! guard cell disjoint_from: PO:0008030 ! trichome cell relationship: develops_from PO:0000349 ! epidermal initial [Term] id: PO:0000349 name: epidermal initial namespace: plant_structure def: "A relatively unspecialized cell that will give rise to specialized cell types of the epidermis." [TAIR:lr] xref: CL:0000538 is_a: PO:0004011 ! initial cell [Term] id: PO:0000351 name: guard mother cell namespace: plant_structure def: "Epidermal cell that divides to produce the guard cells." [ISBN:0471245208] xref: CL:0000262 is_a: PO:0025165 ! shoot epidermal cell relationship: develops_from PO:0000070 ! meristemoid relationship: develops_from PO:0000349 ! epidermal initial [Term] id: PO:0000352 name: myrosin cell namespace: plant_structure def: "Cell containing glucosinolates (\"mustard oil glucosides\") and myrosinases, enzymes hydrolyzing the glucosinolates." [ISBN:0471245208] xref: CL:0000368 is_a: PO:0025030 ! ground tissue cell [Term] id: PO:0000353 name: passage cell namespace: plant_structure def: "Cell in exodermis or endodermis that remains thin walled when the associated cells develop thick secondary walls." [ISBN:0471245208] xref: CL:0000245 is_a: PO:0025030 ! ground tissue cell [Term] id: PO:0000355 name: fiber tracheid namespace: plant_structure def: "A fiber-like tracheid in the secondary xylem; commonly thick walled, with pointed ends and bordered pits that have lenticular to slit-like apertures." [ISBN:0471245208] xref: CL:0000258 is_a: PO:0000274 ! xylem fiber [Term] id: PO:0000372 name: metaxylem namespace: plant_structure def: "A portion of xylem tissue that is part of the primary xylem and differentiates after the protoxylem and before the secondary xylem, if any of the latter is formed." [ISBN:047125208] is_a: PO:0005352 ! xylem relationship: part_of PO:0005849 ! primary xylem [Term] id: PO:0000373 name: mucilage cell namespace: plant_structure def: "OBSOLETE. Cell containing mucilages or gums or similar carbohydrate material characterized by the property of swelling in water." [ISBN:0471245208] comment: Functional term is_obsolete: true [Term] id: PO:0000400 name: phloem mother cell namespace: plant_structure def: "A cell derived from vascular cambium which is destined to differentiate into secondary phloem." [POC:curators] comment: Phloem islands can be formed in the middle of the xylem. xref: CL:0000264 is_a: PO:0000295 ! cambial initial relationship: part_of PO:0005043 ! secondary phloem [Term] id: PO:0000423 name: zygote namespace: plant_structure def: "Diploid cell produced by the fusion of sperm cell nucleus and egg cell." [TAIR:ki] xref: CL:0000365 is_a: PO:0009002 ! plant cell [Term] id: PO:0000431 name: megasporocyte namespace: plant_structure def: "A diploid (2n) cell that undergoes meiosis and produces four haploid (1n) megaspores." [ISBN:0471245208] synonym: "megaspore mother cell" RELATED [] synonym: "MMC" RELATED [] xref: CL:0000320 is_a: PO:0006204 ! sporocyte relationship: develops_from PO:0006015 ! female archesporial cell relationship: part_of PO:0020020 ! nucellus [Term] id: PO:0001000 name: meristem eloboration namespace: plant_growth_and_development_stage def: "OBSOLETE. the root meristem gets organized" [GR:ap] comment: This term has been obsoleted to keep the structure simple. is_obsolete: true [Term] id: PO:0001002 name: fruit development stages namespace: plant_growth_and_development_stage def: "Stages of development of a fruit defined by characteristic morphological, structural, histological or other visible features." [POC:curators] synonym: "stage 17 flower in Arabidopsis" RELATED [] synonym: "stage 18 flower in Arabidopsis" RELATED [] is_a: PO:0007021 ! plant structure development stage [Term] id: PO:0001003 name: formation of the leaf founder cells namespace: plant_growth_and_development_stage def: "The initial stage of leaf development when cells in the SAM are already determined to form a leaf primordium, but the primordium itself is not distinguishable morphologically." [TAIR:ki] synonym: "P0 stage" RELATED [] is_a: PO:0001051 ! 1 leaf initiation stage [Term] id: PO:0001004 name: anther developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the anther defined by characteristic morphological, cytological, histological or other visible features." [POC:fz] is_a: PO:0007605 ! androecium developmental stages [Term] id: PO:0001005 name: A archesporial cells visible namespace: plant_growth_and_development_stage def: "An initial stage during which archesporial cells arise in four corners of L2 layer. Change in shape of primordia to more oval." [TAIR:ki] is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001006 name: B enlarged microsporocyte stage namespace: plant_growth_and_development_stage def: "Stage during which the microsporocytes become conspicuous." [TAIR:ki] synonym: "pollen stage 2 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001007 name: pollen developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the pollen defined by characteristic morphological, cytological, histological or other visible features." [POC:fz] synonym: "pollen development in Arabidopsis" RELATED [] is_a: PO:0007605 ! androecium developmental stages [Term] id: PO:0001008 name: C callose wall formation in pollen mother cells namespace: plant_growth_and_development_stage def: "Stage during which diploid pollen mother cells become separated from each other and from tapetum by a callose wall." [TAIR:ki] synonym: "pollen mother cell stage" RELATED [] synonym: "pollen stage 3 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001009 name: D pollen mother cell meiosis stage namespace: plant_growth_and_development_stage def: "Stage during which pollen mother cells undergo meiosis to form tetrads of microspores." [TAIR:ki] synonym: "pollen stage 4 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001010 name: F microspore release stage namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which the callose wall between the tetrads breaks down and haploid microspores are released and lie freely in locules." [TAIR:ki] synonym: "pollen stage 5 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001011 name: A microsporogenous mass stage namespace: plant_growth_and_development_stage def: "An initial stage during which the archesporial cells divide to give rise to primary parietal and sporogenous cells." [TAIR:ki] synonym: "pollen stage 1 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001012 name: G early unicellular microspore stage namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which the microspores round up and small vacuoles appear in their cytoplasm. The microspore walls thicken due to the formation of the exine." [TAIR:ki] synonym: "pollen stage 6 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001013 name: H late unicellular microspore stage namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which a large vacuole is formed in each microspore causing a rapid increase in size and a displacement of the nucleus to one side." [TAIR:ki] synonym: "pollen stage 7 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001014 name: I first mitotic division stage namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which the asymmetric, first mitotic division of the microspores occurs producing a large vegetative cell and small generative cell, located near pollen wall." [TAIR:ki] synonym: "pollen stage 8 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001015 name: K second mitotic division stage namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which the generative cell undergoes mitotic division to form two male gametes, the sperm cells." [TAIR:ki] comment: In taxa with mature two-celled pollen, the second mitotic division takes place after pollen germination, in germinating pollen tube. synonym: "pollen stage 9 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001016 name: L mature pollen stage namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which the pollen reaches mature stage and desiccates." [TAIR:ki] comment: Mature pollen stages is reached at three-celled pollen in some angiosperms (maize, rice and Arabidopsis), while in others, the maturepollen has two haploid cells (tobacco, snapdragon). synonym: "pollen stage 10 in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001017 name: M germinated pollen stage namespace: plant_growth_and_development_stage def: "The final stage in the life cycle of the male gametophyte. Upon rehydration, mature pollen grain forms a tubular outgrowth, the pollen tube, which carries the male gametes." [TAIR:ki] synonym: "germinated pollen grain in Arabidopsis" RELATED [] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001018 name: B formation of primary parietal and sporogenous cells namespace: plant_growth_and_development_stage def: "Stage during which the primary parietal and primary sporogenous layers are derived from archesporial cells." [TAIR:ki] is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001019 name: formation of leaf primordium namespace: plant_growth_and_development_stage def: "Stage of leaf development when leaf primordium is formed as a small protrusion on the flank of SAM." [TAIR:ki] synonym: "P1 stage" RELATED [] is_a: PO:0001052 ! 2 leaf expansion stage [Term] id: PO:0001020 name: hood-shaped primordium namespace: plant_growth_and_development_stage def: "Stage of leaf development when a hood-shaped primordium is formed, partially enclosing P1 and SAM, as in Poaceae." [TAIR:ki] synonym: "P2 stage" RELATED [] is_a: PO:0001052 ! 2 leaf expansion stage [Term] id: PO:0001021 name: formation of ligule primordium namespace: plant_growth_and_development_stage def: "Stage of leaf development when conical P3 leaf completely encloses SAM, and the ligule primordium is visible, as in Poaceae." [TAIR:ki] synonym: "P3 stage" RELATED [] is_a: PO:0001052 ! 2 leaf expansion stage [Term] id: PO:0001023 name: rapid elongation of leaf blade namespace: plant_growth_and_development_stage def: "Stage of leaf development during which a rapid elongation of the leaf blade occurs; the elongation of the leaf sheath has not started, as in Poaceae." [TAIR:ki] synonym: "P4 stage" RELATED [] is_a: PO:0001052 ! 2 leaf expansion stage [Term] id: PO:0001024 name: rapid elongation of leaf sheath namespace: plant_growth_and_development_stage def: "Stage of leaf development during which a rapid elongation of the leaf sheath occurs, as in Poaceae." [TAIR:ki] synonym: "P5 stage" RELATED [] is_a: PO:0001052 ! 2 leaf expansion stage [Term] id: PO:0001025 name: C four anther lobes formed namespace: plant_growth_and_development_stage def: "Stage during which the four-lobed anther pattern with two developing stomium regions (notch) are formed." [TAIR:ki] is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001026 name: D locules established namespace: plant_growth_and_development_stage def: "Stage during which the four clearly defined locules are established. All anther cell types present and microspore mother cells appear." [TAIR:ki] synonym: "stage 8 flower in Arabidopsis" RELATED [] is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001027 name: meristamtic zone formation namespace: plant_growth_and_development_stage def: "OBSOLETE. The meristematic zone is formed" [GR:ap] is_obsolete: true [Term] id: PO:0001028 name: elongation zone formation namespace: plant_growth_and_development_stage def: "OBSOLETE. The cells of root primordium undergo elonagtion" [GR:ap] is_obsolete: true [Term] id: PO:0001029 name: E tetrad stage namespace: plant_growth_and_development_stage def: "Stage immediately following meiosis, during which the tetrads of microspores are still hold together, enclosed by the callose wall." [TAIR:ki] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001030 name: specialization zone formation namespace: plant_growth_and_development_stage def: "OBSOLETE. The cells develop their characteristic morphology." [GR:ap] is_obsolete: true [Term] id: PO:0001031 name: 4 root elongation namespace: plant_growth_and_development_stage def: "The stage at which root is elongating." [POC:cuartors] comment: In some plant species this stage is subdivided into distal and proximal elongating zones. synonym: "Benfey's stage 2 of root development" RELATED [] is_a: PO:0007520 ! root development stages [Term] id: PO:0001032 name: E tapetum degeneration initiated namespace: plant_growth_and_development_stage def: "Stage during which degeneration of the tapetum is initiated, as the deposition on the surface of the microspore primexine proceeds." [TAIR:ki] comment: Microspores within single locule are at unicellular stage. is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001034 name: F bilocular anther stage namespace: plant_growth_and_development_stage def: "Stage during which anther becomes bilocular, after degeneration and breakage of septum below stomium." [TAIR:ki] is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001035 name: G anther dehiscence namespace: plant_growth_and_development_stage def: "Stage during which the dehiscence of anthers occurs. Anther breaks along stomium and pollen is released." [TAIR:ki] is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001036 name: H anther senescence namespace: plant_growth_and_development_stage def: "Stage during which the senescence of anther and stamen occurs. Shrinkage of cells and anther structure takes place." [TAIR:ki] is_a: PO:0001004 ! anther developmental stages [Term] id: PO:0001040 name: dry seed stage namespace: plant_growth_and_development_stage alt_id: PO:0007055 def: "Mature seed with low moisture content." [TAIR:ki] synonym: "00 Dry Seed in soybean" RELATED [SOY:0000009] synonym: "1.01-dry seed in Triticeae" RELATED [GRO:0007052] synonym: "BBCH growth stage 00" RELATED [ISBN:3826331524] synonym: "dry seed in Arabidopsis" RELATED [TAIR:0000213] is_a: PO:0001170 ! seed development stages [Term] id: PO:0001041 name: chalazal and micropylar domain establishment namespace: plant_growth_and_development_stage def: "The initial stage of endosperm development during which the chalazal and micropilar domains are established." [TAIR:ki] is_a: PO:0007633 ! endosperm development stages [Term] id: PO:0001042 name: functional specialization of the endosperm namespace: plant_growth_and_development_stage def: "Stage of endosperm development during which the functional specialization of the maturing endosperm occurs." [TAIR:ki] is_a: PO:0007633 ! endosperm development stages [Term] id: PO:0001044 name: sepal differentiation and expansion stage namespace: plant_growth_and_development_stage def: "Stage of calyx development defined by differentiation and expansion of sepal." [POC:fz] is_a: PO:0007603 ! calyx developmental stages [Term] id: PO:0001045 name: fully expanded sepal namespace: plant_growth_and_development_stage def: "Stage of calyx development when sepal is fully expanded." [POC:fz] is_a: PO:0007603 ! calyx developmental stages [Term] id: PO:0001047 name: lemma developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the lemma defined by characteristic morphological, structural, histological or other visible features." [GR:ap, POC:fz] is_a: PO:0007600 ! 3 floral organ development stages [Term] id: PO:0001048 name: palea developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the palea defined by characteristic morphological, structural, histological or other visible features." [GR:ap, POC:fz] is_a: PO:0007600 ! 3 floral organ development stages [Term] id: PO:0001049 name: lodicule developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the lodicule defined by characteristic morphological, structural, histological or other visible features." [GR:ap, POC:fz] is_a: PO:0007600 ! 3 floral organ development stages [Term] id: PO:0001050 name: leaf development stages namespace: plant_growth_and_development_stage alt_id: PO:0007040 def: "Stages of development of a leaf defined by characteristic morphological, structural, histological or other visible features." [POC:curators, TAIR:tb] synonym: "leaf development in Arabidopsis" RELATED [] synonym: "leaf development stage" RELATED [] is_a: PO:0007021 ! plant structure development stage [Term] id: PO:0001051 name: 1 leaf initiation stage namespace: plant_growth_and_development_stage alt_id: PO:0001003 def: "The earliest histological evidence of leaf initiation, i.e, a change in the orientation of cell division both in the epidermis and in internal layers of the shoot meristem occurs at this stage (Poethig S, 1997, Plant Cell 9:1077-1087)." [PMID:9254931] comment: Cells in the primordium are not yet differentiated. synonym: "leaf initiation in Arabidopsis" RELATED [] is_a: PO:0001050 ! leaf development stages [Term] id: PO:0001052 name: 2 leaf expansion stage namespace: plant_growth_and_development_stage def: "Stage of leaf development which begins when cell differentiation and cell expansion occurs and finishes when the leaf reaches its full size." [TAIR:ki] synonym: "leaf expansion stage in Arabidopsis" RELATED [] is_a: PO:0001050 ! leaf development stages [Term] id: PO:0001053 name: 3 leaf fully expanded namespace: plant_growth_and_development_stage def: "Stage of leaf development when leaf is fully expanded." [TAIR:ki] synonym: "fully expanded leaf stage in Arabidopsis" RELATED [] is_a: PO:0001050 ! leaf development stages [Term] id: PO:0001054 name: 4 leaf senescence stage namespace: plant_growth_and_development_stage def: "The final stage of leaf development when the leaf ceases metabolic activity and senesces." [TAIR:tb] synonym: "leaf senescence stage in Arabidopsis" RELATED [] is_a: PO:0001050 ! leaf development stages [Term] id: PO:0001055 name: lemma primordia visible namespace: plant_growth_and_development_stage def: "Stage of lemma development that begins when the lemma primordia arise." [POC:fz] comment: The lemma primordium forms in 1/2 alternate phylotaxy in rice spikelet. is_a: PO:0001047 ! lemma developmental stages [Term] id: PO:0001056 name: lemma differentiation and expansion stage namespace: plant_growth_and_development_stage def: "Stage of lemma development defined by differentiation and expansion of lemma." [POC:fz] is_a: PO:0001047 ! lemma developmental stages [Term] id: PO:0001057 name: fully expanded lemma namespace: plant_growth_and_development_stage def: "Stage of lemma development when lemma is fully expanded." [POC:fz] is_a: PO:0001047 ! lemma developmental stages [Term] id: PO:0001058 name: palea primordia visible namespace: plant_growth_and_development_stage def: "Stage of palea development that begins when the palea primordia arise." [POC:fz] comment: The palea primordium forms in 1/2 alternate phylotaxy in rice spikelet. is_a: PO:0001048 ! palea developmental stages [Term] id: PO:0001059 name: J bicellular pollen stage namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which the small generative cell moves inward, becoming completely surrounded by the cytoplasm of the vegetative cell." [TAIR:ki] is_a: PO:0001007 ! pollen developmental stages [Term] id: PO:0001070 name: palea differentiation and expansion stage namespace: plant_growth_and_development_stage def: "Stage of palea development defined by differentiation and expansion of palea." [POC:fz] is_a: PO:0001048 ! palea developmental stages [Term] id: PO:0001071 name: fully expanded palea namespace: plant_growth_and_development_stage def: "Stage of palea development when palea is fully expanded." [POC:fz] is_a: PO:0001048 ! palea developmental stages [Term] id: PO:0001072 name: lodicule primordia visible namespace: plant_growth_and_development_stage def: "Stage of lodicule development that begins when the lodicule primordia arise." [POC:fz] comment: Two lodicules form on the side of the lemma in rice spikelet. is_a: PO:0001049 ! lodicule developmental stages [Term] id: PO:0001074 name: N second mitotic division stage in germinating pollen namespace: plant_growth_and_development_stage def: "Stage of microgametophyte development during which the generative cell undergoes a mitotic division to form two male gametes, the sperm cells." [TAIR:ki] is_a: PO:0001017 ! M germinated pollen stage [Term] id: PO:0001077 name: lodicule differentiation and expansion stage namespace: plant_growth_and_development_stage def: "Stage of lodicule development defined by differentiation and expansion of lodicule." [POC:fz] is_a: PO:0001049 ! lodicule developmental stages [Term] id: PO:0001078 name: E expanded cotyledon stage namespace: plant_growth_and_development_stage alt_id: PO:0001076 def: "The stage during which embryo axis and cotyledons rapidly elongate as a result of cell division and cell expansion." [TAIR:ki] synonym: "curled cotyledon stage in Arabidopsis" RELATED [] synonym: "torpedo stage in Arabidopsis" RELATED [] is_a: PO:0007631 ! embryo development stages [Term] id: PO:0001079 name: fully expanded lodicule namespace: plant_growth_and_development_stage def: "Stage of lodicule development when lodicule is fully expanded." [POC:fz] is_a: PO:0001049 ! lodicule developmental stages [Term] id: PO:0001081 name: F mature embryo stage namespace: plant_growth_and_development_stage def: "Stage at which the embryo is fully developed." [APWeb:glossary, TAIR:ki] comment: In some taxa, this occurs some time after the ripe fruit stage and after the dispersal of the seed. synonym: "mature (stage) in Arabidopsis" RELATED [] is_a: PO:0007631 ! embryo development stages [Term] id: PO:0001083 name: inflorescence development stages namespace: plant_growth_and_development_stage def: "Stages of development of an inflorescence defined by characteristic morphological, structural, histological or other visible features." [POC:curators] is_a: PO:0007021 ! plant structure development stage [Term] id: PO:0001094 name: coleoptilar stage namespace: plant_growth_and_development_stage def: "The coleoptilar primordium, SAM and radicle are formed in the embryo of grasses." [TAIR:ki] synonym: "SAM and radicle formation stage" RELATED [] is_a: PO:0007631 ! embryo development stages [Term] id: PO:0001095 name: true leaf formation namespace: plant_growth_and_development_stage def: "During this stage, the protrusion of the first leaf primordia takes place in succession." [TAIR:ki] comment: Not all embryos form true leaves during the embryonic development; this occurs post-embryonically in some taxa. is_a: PO:0007631 ! embryo development stages [Term] id: PO:0001096 name: primary endosperm cell stage namespace: plant_growth_and_development_stage def: "One cell stage that takes place following the fertilization, produced by the fusion of sperm cell nucleus and one or more polar nuclei." [TAIR:ki] is_a: PO:0007633 ! endosperm development stages [Term] id: PO:0001097 name: A zygotic stage namespace: plant_growth_and_development_stage def: "One cell stage that results from fertilization." [PO:KI] synonym: "one cell stage" RELATED [] synonym: "zygote in Arabidopsis" RELATED [] is_a: PO:0007631 ! embryo development stages [Term] id: PO:0001098 name: formation of starchy endosperm namespace: plant_growth_and_development_stage def: "OBSOLETE. Stage of endosperm development during wich the formation of starchy endosperm occurs." [TAIR:ki] is_obsolete: true [Term] id: PO:0001099 name: formation of aleurone and starchy layers namespace: plant_growth_and_development_stage def: "Differentiation of aleurone layer, the outermost endosperm tissue, and the internal starchy tissue." [TAIR:ki] is_a: PO:0001042 ! functional specialization of the endosperm [Term] id: PO:0001170 name: seed development stages namespace: plant_growth_and_development_stage def: "Stages of seed development, from fertilization to the dry or quiescent state." [TAIR:ki] synonym: "seed development in Arabidopsis" RELATED [] is_a: PO:0007021 ! plant structure development stage [Term] id: PO:0001180 name: B proembryo stage namespace: plant_growth_and_development_stage def: "Early embryo development from two cell stage to a multicellular globular stage before three main tissue systems are differentiated." [APWeb:glossary, TAIR:ki] synonym: "eight-celled stage in Arabidopsis" RELATED [] synonym: "two-celled stage in Arabidopsis" RELATED [] is_a: PO:0007631 ! embryo development stages [Term] id: PO:0001185 name: C globular stage namespace: plant_growth_and_development_stage def: "During this stage the embryo proper retains radial symmetry (increasing in diameter), and three main tissue systems are established." [TAIR:ki] synonym: "dermatogen stage in Arabidopsis" RELATED [] synonym: "globular stage in Arabidopsis" RELATED [] synonym: "late globular stage in Arabidopsis" RELATED [] synonym: "mid-globular stage in Arabidopsis" RELATED [] is_a: PO:0007631 ! embryo development stages [Term] id: PO:0001378 name: sepals enclosing meristem namespace: plant_growth_and_development_stage def: "Stage of calyx development that begins when the developing sepals overlie the floral meristem." [ISBN:0387940898] synonym: "stage 4 flower in Arabidopsis " RELATED [] is_a: PO:0001044 ! sepal differentiation and expansion stage [Term] id: PO:0001380 name: sepals enclosing floral bud namespace: plant_growth_and_development_stage def: "Stage of calyx development that begins when the sepals enclose the floral bud." [ISBN:0387940898] synonym: "stage 6 flower in Arabidopsis " RELATED [] is_a: PO:0001044 ! sepal differentiation and expansion stage [Term] id: PO:0002000 name: stomatal complex namespace: plant_structure def: "A portion of shoot epidermis that has as parts two guard cells and a stomatal pore. May also contain subsidiary cells." [ISBN:0471245208] subset: TraitNet synonym: "stoma" BROAD [] synonym: "stomata" BROAD [] is_a: PO:0006035 ! shoot epidermis relationship: has_part PO:0000293 ! guard cell relationship: has_part PO:0008032 ! stomatal pore [Term] id: PO:0002001 name: papillae namespace: plant_structure def: "A soft protuberance on an epidermal cell of the stigma." [ISBN:0471245208] comment: This terms was made obsolete because it is a sub-cellular compartment. Plant cell papilla (GO:0090395), leaf papilla (GO:0090396), and stigma papilla (GO:0090397) have been added to GO. To annotate to a cell that has a papilla, consider papilla cell (PO:0025166), leaf papilla cell (PO:0025167), or stigma papilla cell (PO:0025168). subset: reference is_obsolete: true consider: PO:0025166 consider: PO:0025167 consider: PO:0025168 [Term] id: PO:0002002 name: basal cell namespace: plant_structure def: "An embryonic plant cell that is the lower-most cell formed after the first division of the zygote." [ISBN:0471245208] xref: CL:0000646 is_a: PO:0025028 ! embryonic plant cell relationship: develops_from PO:0000423 ! zygote [Term] id: PO:0002003 name: vessel member namespace: plant_structure def: "One of the cellular components of a vessel, a dead cell with the wall between adjacent members being variously perforated and the walls that persist variously thickened." [ISBN:0471245208] subset: TraitNet synonym: "vessel element" RELATED [] synonym: "vessel segment" RELATED [] is_a: PO:0000290 ! tracheary element [Term] id: PO:0002004 name: silk scar namespace: plant_structure def: "The silk scar is composed of the shrivelled remains of the intercalary region of the silk, together with the base of the silk which is the true stylar tissue of the silk arising from the distal end of the developing kernel (caryopsis)." [GR:cwt6] is_a: PO:0008001 ! fruit distal end relationship: part_of PO:0009084 ! pericarp [Term] id: PO:0003000 name: transition zone namespace: plant_structure def: "A region of the root between the meristem and the region of rapid elongation in which isodiametric growth (cell expansion) occurs." [Agricola:IND23249552, http://search.epnet.com/direct.asp?an=IND23249552&db=agr] subset: reference xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009005 ! root [Term] id: PO:0003003 name: obsolete primary root elongation zone namespace: plant_structure def: "A zone of small, densely cytoplasmic cells that are dividing and expanding in size located behind the zone of cell division in the primary root." [TAIR:ki] comment: This term was made obsolete because the definition was not correct. A new term with the same name and correct definitions was created to replace it. is_obsolete: true replaced_by: PO:0025257 [Term] id: PO:0003004 name: haustorial root namespace: plant_structure def: "OBSOLETE. The root of particular parasitic plants that becomes cemented to the host axis and intrudes into the tissues of the host." [http://www.botgard.ucla.edu/html/botanytextbooks/generalbotany/typesofroots/] comment: Term is specific for parasitic plants only. is_obsolete: true [Term] id: PO:0003005 name: nodal root namespace: plant_structure alt_id: PO:0003008 alt_id: PO:0003009 def: "Adventitious root that forms at a shoot node." [http://www.botgard.ucla.edu/html/botanytextbooks/generalbotany/typesofroots/] subset: reference subset: TraitNet is_a: PO:0000042 ! shoot-borne root [Term] id: PO:0003011 name: root vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a root." [ISBN:0471245208, POC:curators] comment: This term was brought back from OBSOLETE node (original reason for OBSOLETE: synonym of term stele). Since stele encompasses both vascular system and the pith, in roots with pith, vascular system and stele are not synonymous. synonym: "root vein" RELATED [] is_a: PO:0000034 ! vascular system relationship: part_of PO:0020124 ! root stele [Term] id: PO:0003014 name: obsolete lateral root elongation zone namespace: plant_structure def: "The portion of the lateral root located behind the zone of cell division that includes small, densely cytoplasmic cells that are dividing and expanding in size." [TAIR:ki] comment: This term was made obsolete because the definition was not correct. A new term with the same name and correct definitions was created to replace it. is_obsolete: true replaced_by: PO:0025256 [Term] id: PO:0003015 name: primary root differentiation zone namespace: plant_structure def: "A root differentiation zone that is part of a primary root." [POC:rw, TAIR:ki] is_a: PO:0020135 ! root differentiation zone relationship: part_of PO:0020127 ! primary root [Term] id: PO:0003016 name: lateral root differentiation zone namespace: plant_structure def: "A root differentiation zone that is part of a lateral root." [POC:rw, TAIR:ki] is_a: PO:0020135 ! root differentiation zone relationship: part_of PO:0020121 ! lateral root [Term] id: PO:0003017 name: root cap of primary root namespace: plant_structure def: "A root cap that is part of a primary root tip." [POC:rw, TAIR:ki] is_a: PO:0020123 ! root cap relationship: part_of PO:0000026 ! primary root tip [Term] id: PO:0003018 name: root cap of lateral root namespace: plant_structure def: "A root cap that is part of a lateral root tip." [POC:rw, TAIR:ki] is_a: PO:0020123 ! root cap relationship: part_of PO:0000027 ! lateral root tip [Term] id: PO:0003019 name: central root cap of lateral root namespace: plant_structure def: "A central root cap that is part of a root cap of lateral root." [POC:curators, TAIR:ki] is_a: PO:0020130 ! central root cap relationship: part_of PO:0003018 ! root cap of lateral root [Term] id: PO:0003020 name: lateral root cap of lateral root namespace: plant_structure def: "A lateral root cap that is part of a root cap of lateral root." [POC:curators, TAIR:ki] is_a: PO:0020131 ! lateral root cap relationship: part_of PO:0003018 ! root cap of lateral root [Term] id: PO:0003021 name: central root cap of primary root namespace: plant_structure def: "A central root cap that is part of a root cap of primary root." [POC:curators, TAIR:ki] is_a: PO:0020130 ! central root cap relationship: part_of PO:0003017 ! root cap of primary root [Term] id: PO:0003022 name: lateral root cap of primary root namespace: plant_structure def: "A central root cap that is part of a root cap of primary root." [POC:curators, TAIR:ki] is_a: PO:0020131 ! lateral root cap relationship: part_of PO:0003017 ! root cap of primary root [Term] id: PO:0003023 name: root nodule namespace: plant_structure def: "A cardinal organ part that is an outgrowth of a root and is inhabited by nitrogen-fixing bacteria." [POC:rw] comment: Root nodules are a symbiosis between a plant (often, but not exclusively, of the Fabaceae) and bacteria of the genus Rhizobium, Bradyrhizobium, or Azorhizobium. subset: TraitNet is_a: PO:0025001 ! cardinal organ part relationship: develops_from PO:0025194 ! root nodule meristem relationship: part_of PO:0009005 ! root [Term] id: PO:0003024 name: stolon namespace: plant_structure def: "A branch that is slender, prostrate or trailing and above-ground and produces roots and sometimes erect shoots at its nodes." [APWeb:Glossary] subset: reference subset: TraitNet synonym: "runner" RELATED [] is_a: PO:0025073 ! branch [Term] id: PO:0004000 name: apical cell namespace: plant_structure def: "An embryonic plant cell that is the uppermost cell formed after the first division of the zygote." [ISBN:0471245208] is_a: PO:0025028 ! embryonic plant cell relationship: develops_from PO:0000423 ! zygote [Term] id: PO:0004001 name: bulliform cell namespace: plant_structure def: "An enlarged more or less thin-walled leaf pavement cell, present, with other similar cells, in longitudinal rows in leaves of monocots." [ISBN:0471245208] comment: Also called motor cell because of its presumed participation in the mechanism of rolling and unrolling of leaves. synonym: "motor cell" RELATED [] is_a: PO:0025212 ! leaf pavement cell relationship: part_of PO:0006016 ! leaf epidermis [Term] id: PO:0004002 name: contact cell namespace: plant_structure def: "OBSOLETE. An axial parenchyma or a ray cell physiologically associated with a tracheary element. Also a cell next to a stoma." [ISBN:0471245208] comment: Not used in current plant literature. is_obsolete: true [Term] id: PO:0004003 name: phellem namespace: plant_structure alt_id: PO:0005049 def: "A portion of ground issue centrifugally derived from cork cambium, non-living at maturity, and having suberized walls." [ISBN:0471245208, POC:curators] comment: Protective in function because the walls are highly impervious to water. synonym: "cork" RELATED [] synonym: "phellem" RELATED [] is_a: PO:0025059 ! portion of ground tissue relationship: develops_from PO:0005599 ! cork cambium relationship: part_of PO:0005048 ! shoot axis periderm [Term] id: PO:0004004 name: epithelium cell namespace: plant_structure def: "OBSOLETE. A compact layer of cells, often secretory in function, covering a free surface or lining a cavity." [ISBN:0471245208] comment: Functional term is_obsolete: true [Term] id: PO:0004005 name: laticiferous cell namespace: plant_structure def: "OBSOLETE. A specialized cells or ducts resembling vessels; they form branched networks of latex-secreting cells in the phloem and other parts of plants." [http://academic.kellogg.edu/herbrandsonc/bio111/glossary/glossary.htm] comment: Obsoleted: Too general definition of the term. Replaced by two terms: non-articulated laticifer cell and articulated laticifer cell. is_obsolete: true [Term] id: PO:0004006 name: mesophyll cell namespace: plant_structure def: "A chlorenchyma cell that is part of a mesophyll." [POC:curators, TAIR:ki] subset: TraitNet is_a: PO:0000076 ! chlorenchyma cell relationship: part_of PO:0006070 ! mesophyll [Term] id: PO:0004007 name: phelloid cell namespace: plant_structure def: "OBSOLETE.  A cell within the phellem (cork) but distinct from the cork cell in having no suberin in its walls." [ISBN:0471245208] comment: Not used in current plant literature. Confusing definition. is_obsolete: true [Term] id: PO:0004008 name: photosynthetic cell namespace: plant_structure def: "OBSOLETE. A chloroplast-containing cell engaged in photosynthesis." [ISBN:0471245208] comment: Functional characterization is not part of the criteria. is_obsolete: true [Term] id: PO:0004009 name: silica cell namespace: plant_structure def: "Cells with deposits of silica in them. One of the two types of short cells in the epidermis of grasses and bamboos. It is usually paired with epidermal cork cell." [ISBN:0471245208] comment: One of two types of short cells in the epidermis of grasses. is_a: PO:0004718 ! short cell [Term] id: PO:0004010 name: meristematic cell namespace: plant_structure def: "A cell synthesizing protoplasm and producing new cells by division and with only a primary cell wall." [ISBN:0471245208] xref: CL:0000685 is_a: PO:0009002 ! plant cell relationship: part_of PO:0009013 ! meristem [Term] id: PO:0004011 name: initial cell namespace: plant_structure def: "Cell in a meristem that by division gives rise to two cells one of which remains in the meristem, the other is added to the plant body." [ISBN:0471245208] synonym: "stem cell" BROAD [] xref: CL:0000034 is_a: PO:0004010 ! meristematic cell [Term] id: PO:0004012 name: secretory cell namespace: plant_structure def: "OBSOLETE. Cell that produces secreted substances." [TAIR:ki] comment: This is a functional term. is_obsolete: true [Term] id: PO:0004013 name: epidermal cell namespace: plant_structure def: "Cell that constitutes dermal tissue." [TAIR:ki] subset: TraitNet xref: CL:0000362 is_a: PO:0009002 ! plant cell relationship: part_of PO:0005679 ! epidermis [Term] id: PO:0004500 name: formation of leaflet primordia namespace: plant_growth_and_development_stage def: "Stage at which leaflet primordia are initiated on the leaf primordium of a compound leaf." [TAIR:ki] is_a: PO:0001052 ! 2 leaf expansion stage [Term] id: PO:0004501 name: gynoecium differentiation and expansion namespace: plant_growth_and_development_stage def: "Stage of gynoecium development defined by differentiation and expansion of carpels." [TAIR:ki] is_a: PO:0007606 ! gynoecium developmental stages [Term] id: PO:0004502 name: closure of carpel(s) namespace: plant_growth_and_development_stage def: "Stage of gynoecium development defined by the closure of the carpel(s)." [TAIR:ki] comment: Closure of the carpel can occur in various ways, by fusion or secretion. is_a: PO:0007606 ! gynoecium developmental stages [Term] id: PO:0004503 name: stigma cell differentiation namespace: plant_growth_and_development_stage def: "Epidermal cells at the top of developing style differentiate stigma." [TAIR:ki] is_a: PO:0007606 ! gynoecium developmental stages [Term] id: PO:0004504 name: ovule differentiation and expansion namespace: plant_growth_and_development_stage def: "Stage of ovule development defined by differentiation and expansion of ovules." [TAIR:ki] is_a: PO:0007619 ! ovule developmental stages [Term] id: PO:0004505 name: fertilized ovule stage namespace: plant_growth_and_development_stage def: "The earliest stage of seed development immediately following double fertilization." [TAIR:ki] is_a: PO:0001170 ! seed development stages [Term] id: PO:0004506 name: developing seed stage namespace: plant_growth_and_development_stage def: "Stage of seed development characterized by seed growth and differentiation." [TAIR:ki] is_a: PO:0001170 ! seed development stages [Term] id: PO:0004507 name: D bilateral stage namespace: plant_growth_and_development_stage alt_id: PO:0001043 alt_id: PO:0001177 def: "Change from radial to bilateral symmetry takes place during this embryonic stage." [TAIR:ki] synonym: "heart stage in Arabidopsis" RELATED [] synonym: "heart-shape stage" RELATED [] synonym: "transition stage in maize" RELATED [] synonym: "triangle stage in Arabidopsis" RELATED [] is_a: PO:0007631 ! embryo development stages [Term] id: PO:0004509 name: glandular trichome namespace: plant_structure def: "A  trichome that secretes or sequesters a portion of plant substance." [POC:curators] synonym: "secretory trichome" NARROW [] xref: OBO_SF_PO:2916424 is_a: PO:0000282 ! trichome [Term] id: PO:0004511 name: seed trichome namespace: plant_structure def: "A trichome that develops from seed coat epidermis and is often long with putative dispersal function." [POC:curators] subset: TraitNet synonym: "pubescence" RELATED [] synonym: "seed hair" EXACT [] is_a: PO:0000282 ! trichome relationship: part_of PO:0006048 ! seed coat epidermis [Term] id: PO:0004512 name: heartwood namespace: plant_structure def: "The inner layers of secondary xylem that have largely ceased to function in storage and conduction and in which reserve materials have been removed or converted into heartwood substances; generally darker colored than the functioning sapwood." [ISBN:0471245208, POC:curators] subset: TraitNet is_a: PO:0005848 ! secondary xylem [Term] id: PO:0004513 name: sapwood namespace: plant_structure def: "Outer part of the wood of stem or root containing living cells and reserves and in which conduction of water takes place. Generally lighter colored than the heartwood." [ISBN:0471245208, POC:curators] subset: TraitNet is_a: PO:0005848 ! secondary xylem [Term] id: PO:0004514 name: growth ring namespace: plant_structure def: "A growth layer of secondary xylem or secondary phloem as seen in transection of stem or root; may be an annual ring or a false annual ring." [ISBN:0471245208, POC:curators] subset: TraitNet synonym: "annual ring" EXACT [] is_a: PO:0005848 ! secondary xylem [Term] id: PO:0004515 name: early wood namespace: plant_structure def: "The wood formed in first part of a growth ring and characterized by a lower density and larger cells than the late wood." [ISBN:0471245208, POC:curators] subset: TraitNet synonym: "spring wood" RELATED [] is_a: PO:0004514 ! growth ring [Term] id: PO:0004516 name: late wood namespace: plant_structure def: "The secondary xylem formed in the later part of a growth ring; denser and composed of smaller cells than the early wood." [POC:curators] subset: Citrus subset: TraitNet synonym: "summer wood" RELATED [] is_a: PO:0004514 ! growth ring [Term] id: PO:0004517 name: growth ring boundary namespace: plant_structure def: "Boundary between two growth rings." [POC:curators] is_a: PO:0004514 ! growth ring [Term] id: PO:0004518 name: bark namespace: plant_structure def: "All tissues outside the vascular cambium or the xylem; in older trees may be divided into dead outer bark and living inner bark, which consists of secondary phloem." [POC:curators] subset: TraitNet is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0005043 ! secondary phloem [Term] id: PO:0004519 name: phloem fiber namespace: plant_structure def: "A fiber in phloem." [POC:curators] subset: TraitNet is_a: PO:0000081 ! axial cell relationship: part_of PO:0005043 ! secondary phloem [Term] id: PO:0004520 name: libriform fiber namespace: plant_structure def: "A xylem fiber commonly with thick walls and simple pits." [POC:curators] is_a: PO:0000274 ! xylem fiber [Term] id: PO:0004521 name: septate fiber namespace: plant_structure def: "A fiber with thin transverse walls (septa), which are formed after the cell develops a secondary wall thickening." [POC:curators] is_a: PO:0000274 ! xylem fiber [Term] id: PO:0004522 name: outer vascular cambium namespace: plant_structure def: "Cambium at the outer margin of the xylem cylinder." [POC:curators] is_a: PO:0005598 ! vascular cambium [Term] id: PO:0004523 name: included vascular cambium namespace: plant_structure def: "Cambium occurring within xylem." [POC:curators] is_a: PO:0005598 ! vascular cambium [Term] id: PO:0004524 name: included phloem namespace: plant_structure def: "A portion of phloem tissue produced by included vascular cambium." [POC:curators] is_a: PO:0005043 ! secondary phloem [Term] id: PO:0004525 name: wood parenchyma cell namespace: plant_structure def: "Parenchyma cell occurring within secondary xylem." [POC:curators] subset: TraitNet is_a: PO:0000074 ! parenchyma cell [Term] id: PO:0004526 name: axial wood parenchyma cell namespace: plant_structure def: "Parenchyma cell in the axial system of secondary xylem." [POC:curators] is_a: PO:0004525 ! wood parenchyma cell [Term] id: PO:0004527 name: ray wood parenchyma cell namespace: plant_structure def: "Parenchyma cell of a ray in secondary xylem." [POC:curators] is_a: PO:0004525 ! wood parenchyma cell [Term] id: PO:0004528 name: upright wood ray parenchyma cell namespace: plant_structure def: "Ray cell in secondary xylem oriented axially (vertically in the axis) with its longest dimension." [POC:curators] is_a: PO:0004527 ! ray wood parenchyma cell [Term] id: PO:0004529 name: procumbent wood ray parenchyma cell namespace: plant_structure def: "Ray cell within secondary xylem having its longest axis in radial direction." [POC:curators] is_a: PO:0004527 ! ray wood parenchyma cell [Term] id: PO:0004530 name: tile  cell namespace: plant_structure def: "Empty upright ray cell of approximately the same height as the procumbent ray cell and occurring in indeterminate horizontal series usually  interspersed among the procumbent cells." [POC:curators] is_a: PO:0004528 ! upright wood ray parenchyma cell [Term] id: PO:0004531 name: sheath cell namespace: plant_structure def: "Cell on the margin of, and tending to form a sheath around, the procumbent cells of a multi-seriate ray as seen in tangential section." [POC:curators] xref: CL:0000618 is_a: PO:0004528 ! upright wood ray parenchyma cell [Term] id: PO:0004532 name: wood parenchyma namespace: plant_structure def: "Parenchymatous tissue occurring in the wood." [POC:curators] is_a: PO:0005848 ! secondary xylem [Term] id: PO:0004533 name: axial wood parenchyma namespace: plant_structure def: "Parenchyma tissue in the axial system of secondary xylem." [POC:curators] is_a: PO:0004532 ! wood parenchyma [Term] id: PO:0004534 name: ray wood parenchyma namespace: plant_structure def: "Radially oriented parenchyma tissue in secondary xylem." [POC:curators] is_a: PO:0004532 ! wood parenchyma [Term] id: PO:0004535 name: fruit placenta namespace: plant_structure def: "A placenta that is part of a fruit and to which seeds are attached." [POC:curators] subset: Tomato is_a: PO:0025078 ! placenta relationship: part_of PO:0009001 ! fruit [Term] id: PO:0004536 name: fruit pedicel namespace: plant_structure def: "An infructescence branch that supports an individual fruit." [POC:rw] comment: The ultimate branch in an infructescence. subset: Tomato xref: OBO_SF_PO:2903966 is_a: PO:0025243 ! infructescence branch relationship: part_of PO:0009001 ! fruit [Term] id: PO:0004537 name: adventitious embryo namespace: plant_structure def: "Embryo derived directly from nucellus cells without involving embryo sac cells." [POC:curators] is_a: PO:0009009 ! embryo [Term] id: PO:0004538 name: indeterminate nodule namespace: plant_structure def: "A root nodule characterized by a persistent meristem, presence of vascular transfer cells, and cell division in the inner cortex with non-dividing infected cells and bacteria." [ISBN:1842460137, POC:curators] comment: Nodule is persistent and may continue to grow after a physiological stress. is_a: PO:0003023 ! root nodule [Term] id: PO:0004539 name: determinate nodule namespace: plant_structure def: "A root nodule characterized by a dividing infected cells and bacteria, vascular transfer cells absent and cell division is in the outer cortex." [POC:curators] comment: Nodules are not persistent. is_a: PO:0003023 ! root nodule [Term] id: PO:0004540 name: fruit columella namespace: plant_structure def: "A columella that forms the central axis of a fruit." [POC:curators] subset: Tomato xref: OBO_SF_PO:3132522 is_a: PO:0025230 ! columella relationship: part_of PO:0009001 ! fruit [Term] id: PO:0004542 name: rhizome namespace: plant_structure def: "A swollen shoot axis that grows horizontally at or below the substrate surface and produces shoots above and roots or rhizoids below." [POC:curators] comment: In ferns and many monocots, a rhizome is a primary axis (stem), while in other species, it is a branch. Usually produces scale-like leaves. subset: reference subset: TraitNet is_a: PO:0025029 ! shoot axis [Term] id: PO:0004543 name: tuber namespace: plant_structure def: "An enlarged storage branch." [POC:curators] comment: Found in potatoes and other species. subset: Potato subset: reference subset: TraitNet xref: OBO_SF_PO:3017726 is_a: PO:0025073 ! branch [Term] id: PO:0004544 name: root-borne shoot system namespace: plant_structure def: "A shoot system that is initiated from a root." [POC:curators] subset: TraitNet synonym: "sucker" BROAD [] synonym: "sucker shoot" RELATED [] is_a: PO:0009006 ! shoot system [Term] id: PO:0004545 name: shoot-borne shoot system namespace: plant_structure def: "A shoot system that is initiated from a shoot." [POC:curators] subset: reference synonym: "branch" RELATED [] synonym: "sucker" BROAD [] is_a: PO:0009006 ! shoot system [Term] id: PO:0004546 name: epicomic shoot namespace: plant_structure def: "Shoot developing from a trunk." [POC:curators] is_a: PO:0004545 ! shoot-borne shoot system [Term] id: PO:0004547 name: subterranean tuber namespace: plant_structure def: "A tuber that is below ground." [POC:curators] subset: Potato is_a: PO:0004543 ! tuber [Term] id: PO:0004548 name: aerial tuber namespace: plant_structure def: "A tuber that is above ground." [POC:curators] is_a: PO:0004543 ! tuber [Term] id: PO:0004700 name: middle layer namespace: plant_structure def: "Usually a single cell layer between tapetum and endothecium which almost invariably degenerates early during angiosperm anther  development and is eventually absorbed by adjacent cells." [POC:curators] subset: reference xref: OBO_SF_PO:2903966 is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0006008 ! inner secondary parietal cell layer relationship: part_of PO:0000002 ! anther wall [Term] id: PO:0004701 name: short shoot namespace: plant_structure def: "Shoot system in which the internodes elongate little or at all, bearing reproductive structures and/or leaves." [APWeb:Glossary] synonym: "brachyblast" RELATED [] synonym: "bud spur" RELATED [] is_a: PO:0006343 ! axillary shoot system [Term] id: PO:0004702 name: long shoot namespace: plant_structure def: "Shoot system in which all or most of the internodes elongate." [APWeb:Glossary] is_a: PO:0006343 ! axillary shoot system [Term] id: PO:0004703 name: carpel primordium namespace: plant_structure def: "A phyllome primordium that develops into a carpel. It initiates from the carpel anlagen region of the floral meristem." [GR:pj, POC:curators] is_a: PO:0025128 ! phyllome primordium relationship: develops_from PO:0006005 ! carpel anlagen [Term] id: PO:0004704 name: sepal primordium namespace: plant_structure def: "A phyllome primordium that will devlop into a sepal." [POC:curators] is_a: PO:0025128 ! phyllome primordium [Term] id: PO:0004705 name: stamen primordium namespace: plant_structure def: "A phyllome primordium that will develop into a stamen." [POC:curators] is_a: PO:0025128 ! phyllome primordium [Term] id: PO:0004706 name: flower primordium namespace: plant_structure def: "A primordium that will develop into a flower." [POC:curators] is_a: PO:0025127 ! primordium [Term] id: PO:0004707 name: fruit dehiscence zone namespace: plant_structure def: "A dehiscence zone that is part of a fruit." [POC:curators] comment: Upon fruit maturation by drying, undergoes cell separation, allowing the valves to detach from the replum and seeds to be dispersed. subset: Arabidopsis is_a: PO:0025092 ! dehiscence zone relationship: part_of PO:0009001 ! fruit [Term] id: PO:0004708 name: scutellar node namespace: plant_structure def: "An embryonic plant structure that is the region in of an embryo axis between the primary root (enclosed in the coleorhiza) and the plumule (enclosed in the coleoptile) to which the scutellum is attached." [MaizeGDB:lv, POC:rw] is_a: PO:0025099 ! embryonic plant structure relationship: part_of PO:0019018 ! embryo axis [Term] id: PO:0004709 name: axillary bud namespace: plant_structure def: "A bud that develops from an axillary bud meristem." [POC:curators] subset: reference xref: OBO_SF_PO:3016634 is_a: PO:0000055 ! bud [Term] id: PO:0004710 name: axillary floral bud namespace: plant_structure def: "An axillary bud that develops into a flower." [POC:curators] is_a: PO:0000056 ! floral bud is_a: PO:0025072 ! axillary reproductive bud [Term] id: PO:0004711 name: axillary inflorescence bud namespace: plant_structure def: "An axillary reproductive bud that develops into an inflorescence." [POC:curators] xref: OBO_SF_PO:3020771 is_a: PO:0000057 ! inflorescence bud is_a: PO:0025072 ! axillary reproductive bud [Term] id: PO:0004712 name: axillary vegetative bud namespace: plant_structure def: "An axillary bud that develops into a long or short shoot." [POC:curators] xref: OBO_SF_PO:3020771 is_a: PO:0000058 ! vegetative bud is_a: PO:0004709 ! axillary bud [Term] id: PO:0004713 name: terminal bud namespace: plant_structure def: "A bud that develops from a shoot apical meristem." [POC:curators] subset: reference xref: OBO_SF_PO:3016634 is_a: PO:0000055 ! bud [Term] id: PO:0004714 name: terminal floral bud namespace: plant_structure def: "A terminal bud that develops into a flower." [POC:curators] is_a: PO:0000056 ! floral bud is_a: PO:0025071 ! terminal reproductive bud [Term] id: PO:0004715 name: terminal inflorescence bud namespace: plant_structure def: "A terminal reproductive bud develops into an inflorescence." [POC:curators] is_a: PO:0000057 ! inflorescence bud is_a: PO:0025071 ! terminal reproductive bud [Term] id: PO:0004716 name: terminal vegetative bud namespace: plant_structure def: "A terminal bud that develops into a long or short shoot." [POC:curators] is_a: PO:0000058 ! vegetative bud is_a: PO:0004713 ! terminal bud [Term] id: PO:0004717 name: long cell namespace: plant_structure def: "A more or less rectangular leaf pavement cell in which the proximo-distal dimension is several times longer than the transverse dimension." [POC:curators] comment: In the leaf epidermis of Poaceae and Joinvilleaceae, long cells and short cells often alternate in longitudinal rows. is_a: PO:0025212 ! leaf pavement cell [Term] id: PO:0004718 name: short cell namespace: plant_structure def: "An isodiametric leaf pavement cell." [POC:curators] comment: In the leaf epidermis of Poaceae and Joinvilleaceae, long cells and short cells often alternate in longitudinal rows. is_a: PO:0025212 ! leaf pavement cell [Term] id: PO:0004719 name: hilum groove namespace: plant_structure def: "A cardinal organ part that forms a longitudinal groove in the testa through the prominent hilum of a seed." [POC:curators] synonym: "faboid split" RELATED [] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009010 ! seed [Term] id: PO:0004720 name: paraclade namespace: plant_structure def: "An inflorescence branch that ends in an inflorescence that repeats the main inflorescence." [APWeb:Glossary, ISBN:0521251346] subset: Angiosperm is_a: PO:0009081 ! inflorescence branch [Term] id: PO:0004721 name: paraclade cortex namespace: plant_structure def: "A portion of ground tissue that is part of a cortex and part of a paraclade." [POC:curators, TAIR:ki] xref: OBO_SF_PO:2903966 is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0004720 ! paraclade relationship: part_of PO:0005708 ! cortex [Term] id: PO:0004722 name: pedicel cortex namespace: plant_structure def: "A portion of ground tissue that is part of a cortex and part of a pedicel." [POC:curators, TAIR:ki] is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0005708 ! cortex relationship: part_of PO:0009052 ! pedicel [Term] id: PO:0004723 name: sepal vascular system namespace: plant_structure def: "A phyllome vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a sepal." [POC:rw] is_a: PO:0025206 ! phyllome vascular system relationship: part_of PO:0005017 ! flower vascular system relationship: part_of PO:0009031 ! sepal [Term] id: PO:0004724 name: hypocotyl-root junction namespace: plant_structure def: "A cardinal organ part that is the part of an embryonic axis where the radicle joins the hypocotyl." [POC:rw] subset: reference xref: OBO_SF_PO:3132568 is_a: PO:0025099 ! embryonic plant structure relationship: part_of PO:0019018 ! embryo axis [Term] id: PO:0004725 name: abaxial side of leaf primordium namespace: plant_structure def: "A portion of phyllome primordium tissue that is the abaxial/outer side of a leaf primordium and develops into the abaxial/lower leaf blade." [POC:curators] is_a: PO:0025128 ! phyllome primordium relationship: part_of PO:0000017 ! leaf primordium [Term] id: PO:0004726 name: adaxial side of leaf primordium namespace: plant_structure def: "A portion of phyllome primordium tissue that is the adaxial/inner side of the leaf primordium develops into the adaxial/upper leaf blade." [POC:curators] is_a: PO:0025128 ! phyllome primordium relationship: part_of PO:0000017 ! leaf primordium [Term] id: PO:0005001 name: basal axillary shoot namespace: plant_structure def: "A branch that forms from a leaf at the very base of the shoot." [GR:ap] synonym: "basal axillary branch" RELATED [] synonym: "ratoon" RELATED [] synonym: "tiller" RELATED [] is_a: PO:0006343 ! axillary shoot system [Term] id: PO:0005002 name: cauline axillary shoot namespace: plant_structure def: "An axillary branch that forms from a leaf above the very base of the shoot." [GR:ap] comment: The genetic distinction between cauline axillary branches and tillers may or may not be unique to the Poaceae. There are no data for other plant families. synonym: "cauline axillary branch" RELATED [] is_a: PO:0006343 ! axillary shoot system [Term] id: PO:0005003 name: shoot axis trichome namespace: plant_structure def: "A trichome that is part of a shoot axis epidermis." [PMID:17217456, POC:curators] comment: Can occur on a stem or branch. subset: TraitNet synonym: "branch trichome" NARROW [] synonym: "stem trichome" NARROW [] is_a: PO:0000282 ! trichome relationship: part_of PO:0000112 ! shoot axis epidermis [Term] id: PO:0005004 name: shoot node namespace: plant_structure def: "A cardinal organ part of a shoot axis where one or more spikelet, flower, floret, branch, bud, or leaf may arise." [GR:pj, POC:curators] subset: reference subset: TraitNet is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0005005 name: shoot internode namespace: plant_structure def: "A cardinal organ part that is the part of a shoot axis between two nodes of the axis." [POC:curators] subset: Potato subset: reference subset: TraitNet is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0005006 name: articulated laticifer namespace: plant_structure def: "A structure consisting of long multinucleate tubes in which latex is found, having cross walls (articulated)." [APWeb:Glossary, GR:pj] is_a: PO:0005053 ! laticifer [Term] id: PO:0005007 name: non-articulated laticifer namespace: plant_structure def: "A structure consisting of long multinucleate tubes in which latex is found, having no cross walls." [APWeb:Glossary, GR:pj] is_a: PO:0005053 ! laticifer [Term] id: PO:0005008 name: fruit septum namespace: plant_structure def: "A thin partition or membrane that divides a cavity or a mass of tissue in the fruit that is derived from the carpel septum." [GR:cwt] subset: Arabidopsis is_a: PO:0000030 ! septum relationship: develops_from PO:0005009 ! carpel septum relationship: part_of PO:0009001 ! fruit [Term] id: PO:0005009 name: carpel septum namespace: plant_structure def: "A thin partition or membrane that divides multilocular ovary. Often found in species with syncarpous (multiple carpels fused) pistil." [GR:cwt, GR:pj] subset: Arabidopsis is_a: PO:0000030 ! septum relationship: part_of PO:0009030 ! carpel [Term] id: PO:0005010 name: anther septum namespace: plant_structure def: "A thin partition or stretch of cells that are present in the anther dehiscence zone." [GR:cwt, GR:pj] is_a: PO:0000030 ! septum relationship: part_of PO:0005011 ! anther dehiscence zone [Term] id: PO:0005011 name: anther dehiscence zone namespace: plant_structure def: "A dehiscence zone that is part of an anther." [POC:curators] comment: Extends along the entire length of the anther and is observed as an indentation between the locules of each theca. Upon anther maturation, cell separation within the dehiscence zone allows the anther wall to break open and pollen to be released. is_a: PO:0025092 ! dehiscence zone relationship: part_of PO:0009066 ! anther [Term] id: PO:0005012 name: pedicel vascular system namespace: plant_structure def: "A shoot axis vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a pedicel." [PMID:17217456, POC:rw] is_a: PO:0000039 ! shoot axis vascular system relationship: part_of PO:0009052 ! pedicel [Term] id: PO:0005013 name: hypocotyl epidermis namespace: plant_structure def: "The outermost primary cell layer of the hypocotyl." [PMID:15368128, TAIR:donghui] is_a: PO:0006035 ! shoot epidermis relationship: part_of PO:0020100 ! hypocotyl [Term] id: PO:0005014 name: embryo cortex namespace: plant_structure def: "A cortex that is part of an embryo." [PMID:16543410, POC:curators, TAIR:donghui] comment: Can occur in the hypocotyl and root. is_a: PO:0005708 ! cortex relationship: part_of PO:0009009 ! embryo [Term] id: PO:0005015 name: embryo endodermis namespace: plant_structure def: "A portion of endodermis that is part of an embryo." [PMID:16543410] is_a: PO:0000252 ! endodermis relationship: part_of PO:0009009 ! embryo [Term] id: PO:0005016 name: replum namespace: plant_structure def: "A false septum formed by the ingrowth from the placenta of an ovary rather than from the carpel walls. This is formed post fertilization." [GR:pj, PMID:13678595, PMID:15035986] is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0020001 ! ovary placenta relationship: part_of PO:0009001 ! fruit [Term] id: PO:0005017 name: flower vascular system namespace: plant_structure def: "A shoot system vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a flower." [POC:rw] comment: Because a vascular system is defined as the totality of the portions of vascular tissue in a plant structure, the vascular systems of floral parts are part of the flower vascular system. is_a: PO:0025205 ! shoot system vascular system relationship: part_of PO:0009046 ! flower [Term] id: PO:0005018 name: stamen vascular system namespace: plant_structure def: "A phyllome vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a stamen." [POC:rw] is_a: PO:0025206 ! phyllome vascular system relationship: part_of PO:0005017 ! flower vascular system relationship: part_of PO:0009029 ! stamen [Term] id: PO:0005019 name: carpel vascular system namespace: plant_structure def: "A phyllome vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a carpel." [POC:rw] is_a: PO:0025206 ! phyllome vascular system relationship: part_of PO:0009030 ! carpel [Term] id: PO:0005020 name: vascular bundle namespace: plant_structure def: "A unit strand of the vascular system containing the vascular tissues, xylem and phloem. In addition vascular cambium is often present." [GR:pj] comment: May also contain portions of ground tissue. subset: Maize subset: TraitNet is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0000034 ! vascular system [Term] id: PO:0005021 name: sepal margin namespace: plant_structure def: "The margin of a sepal." [PMID:15269176, TAIR:donghui] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0009031 ! sepal [Term] id: PO:0005022 name: ovary wall namespace: plant_structure def: "A wall of an ovary that is composed of abaxial (outer) and adaxial (inner) epidermis and a middle layer,  composed of mesophyll cells and a distinct subepidermal adaxial cell layer (as found in Arabidopsis)." [GR:pj, PMID:10332605] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009072 ! ovary [Term] id: PO:0005023 name: abaxial epidermis of ovary namespace: plant_structure def: "The epidermal cell layer of the abaxial/outer surface of the ovary." [GR:pj] is_a: PO:0006063 ! ovary epidermis [Term] id: PO:0005024 name: adaxial epidermis of ovary namespace: plant_structure def: "The epidermal cell layer of the adaxial/inner surface of the ovary." [GR:pj] is_a: PO:0006063 ! ovary epidermis [Term] id: PO:0005025 name: middle layer of ovary wall namespace: plant_structure def: "A portion of chlorencyma tissue that is composed of one or more mesophyll layers. It may have a distinct subepidermal adaxial cell layer (as found in Arabidopsis)." [GR:pj, PMID:10332605] comment: The cells in the mesophyll layer(s) may not differentiate similar to the spongy and palisade cells found in the leaf mesophyll. subset: Poaceae xref: OBO_SF_PO:2903966 is_a: PO:0005426 ! chlorenchyma relationship: part_of PO:0005022 ! ovary wall [Term] id: PO:0005026 name: root giant cell namespace: plant_structure def: "Multinucleate cell developed by a series of events involving kayokinesis but not cytokinesis of the initial feeding cell. The events are induced by root knot nematodes (e.g., Meloidogyne sp. ) entering the feeding cells (any cells) of the root vascular system." [GR:pj, PMID:15053756] subset: Arabidopsis is_a: PO:0025030 ! ground tissue cell relationship: part_of PO:0003011 ! root vascular system [Term] id: PO:0005027 name: root syncytium cell namespace: plant_structure def: "Multinucleate cell developed by a series of events involving fusion with the neighboring dividing cells. The events are induced by cyst nematodes (e.g. Heterodera schachtii) entering the feeding cells (any cells) of the root vascular system." [GR:pj, PMID:15053756] subset: Arabidopsis is_a: PO:0025030 ! ground tissue cell relationship: part_of PO:0003011 ! root vascular system [Term] id: PO:0005028 name: inflorescence vascular system namespace: plant_structure def: "A shoot system vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in an inflorescence." [POC:rw] is_a: PO:0025205 ! shoot system vascular system relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0005029 name: root primordium namespace: plant_structure def: "A primordium that will develop into a root." [POC:curators] is_a: PO:0025127 ! primordium [Term] id: PO:0005039 name: primary thickening meristem namespace: plant_structure def: "A meristem that develops from a peripheral zone of a shoot apical meristem and is responsible for the primary increase in thickness of a shoot axis." [ISSN:0669014893] comment: May appear as a distinct mantle like zone. Often found in monocotyledons. is_a: PO:0009013 ! meristem relationship: develops_from PO:0000225 ! peripheral zone relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0005040 name: root pith namespace: plant_structure def: "A portion of pith that is part of a root." [ISBN:0080280307] subset: TraitNet is_a: PO:0006109 ! pith relationship: part_of PO:0020124 ! root stele [Term] id: PO:0005041 name: shoot axis pith namespace: plant_structure def: "A portion of pith that is part of a shoot axis." [ISBN:0080280307] comment: Can occur in a stem or branch. subset: TraitNet synonym: "branch pith" NARROW [] synonym: "stem pith" NARROW [] is_a: PO:0006109 ! pith relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0005043 name: secondary phloem namespace: plant_structure def: "A portion of phloem tissue formed by the activity of the vascular cambium." [ISBN:0122151704] comment: Part of the bark. subset: TraitNet is_a: PO:0005417 ! phloem [Term] id: PO:0005046 name: periderm namespace: plant_structure def: "A peripheral portion of ground tissue in a plant axis that is composed of phellogen, phellem, and phelloderm." [ISBN:047124529, POC:curators] comment: May replace the epidermis in stems and roots, rarely in other organs. In some cases, the epidermis is retained after periderm development. Periderm is derived from lateral meristerm and may contain secondary phloem. subset: TraitNet xref: OBO_SF_PO:3008013 is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0025004 ! plant axis [Term] id: PO:0005047 name: root periderm namespace: plant_structure def: "A portion of periderm that is part of a root." [POC:curators] xref: OBO_SF_PO:3008032 is_a: PO:0005046 ! periderm relationship: part_of PO:0009005 ! root [Term] id: PO:0005048 name: shoot axis periderm namespace: plant_structure def: "A portion of periderm that is part of a shoot axis." [POC:curators] comment: Can occur on a stem or branch. synonym: "branch periderm" NARROW [] synonym: "stem periderm" NARROW [] xref: OBO_SF_PO:3008032 is_a: PO:0005046 ! periderm relationship: part_of PO:0004518 ! bark relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0005050 name: phelloderm namespace: plant_structure def: "A portion of ground tissue often resembling cortical parenchyma produced centripetally by the cork cambium." [ISBN:0080374913] subset: Rice is_a: PO:0025059 ! portion of ground tissue relationship: develops_from PO:0005599 ! cork cambium relationship: part_of PO:0005048 ! shoot axis periderm [Term] id: PO:0005051 name: hypodermis namespace: plant_structure def: "A portion of ground tissue that is the outermost layer of a portion of cortex." [POC:curators] comment: A layer or layers of cells beneath the epidermis that is distinct in appearance from adjacent tissues. xref: OBO_SF_PO:3016668 is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0005708 ! cortex [Term] id: PO:0005052 name: callus namespace: plant_structure def: "A tissue formed as a result of wounding, or a tissue developing in a tissue culture." [GR:pj] is_a: PO:0005421 ! parenchyma [Term] id: PO:0005053 name: laticifer namespace: plant_structure def: "A secretory structure that produces latex." [ISBN:0080374913] is_a: PO:0005656 ! portion of secretory tissue [Term] id: PO:0005057 name: shoot axis hypodermis namespace: plant_structure def: "A portion of hypodermis that is part of a shoot axis cortex." [ISBN:0080374913, POC:curators] comment: Can occur in a stem or branch. synonym: "branch hypodermis" NARROW [] synonym: "stem hypodermis" NARROW [] is_a: PO:0005051 ! hypodermis relationship: part_of PO:0000223 ! shoot axis cortex [Term] id: PO:0005058 name: shoot axis endodermis namespace: plant_structure def: "A portion of endodermis that is part of a shoot axis cortex." [POC:curators] comment: Can occur in a stem or branch. synonym: "branch endodermis" NARROW [] synonym: "stem endodermis" NARROW [] is_a: PO:0000252 ! endodermis relationship: part_of PO:0000223 ! shoot axis cortex [Term] id: PO:0005059 name: root endodermis namespace: plant_structure def: "A portion of endodermis that is part of a root cortex." [GR:pj] is_a: PO:0000252 ! endodermis relationship: part_of PO:0000258 ! root cortex [Term] id: PO:0005060 name: leaf endodermis namespace: plant_structure def: "A portion of endodermis that is part of a leaf." [POC:curators] comment: Often found in the leaf of Gymnosperms and elsewhere. is_a: PO:0000252 ! endodermis relationship: part_of PO:0025034 ! leaf [Term] id: PO:0005349 name: schizo-lysigenous aerenchyma namespace: plant_structure def: "OBSOLETE. Aerenchyma, originating by a combination of two processes, separation and degradation of cell walls." [GR:pj, ISBN:0080374913] comment: The term was made obsolete because schizo-lysigenous form is an attribute of regular aerenchyma. is_obsolete: true [Term] id: PO:0005352 name: xylem namespace: plant_structure def: "A portion of vascular tissue composed of xylem elements." [GR:pj] comment: The principal function is the upward translocation of water and solutes. See also primary xylem and secondary xylem. subset: TraitNet is_a: PO:0009015 ! portion of vascular tissue [Term] id: PO:0005360 name: aleurone layer namespace: plant_structure def: "A portion of plant tissue that is the outermost layer of endosperm in a seed, its cells being characterized by presence of protein bodies containing seed storage proteins." [GR:pj, ISBN:0080374913] xref: OBO_SF_PO:2903966 is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009089 ! endosperm [Term] id: PO:0005415 name: endosperm parenchyma namespace: plant_structure def: "A portion of seed storage parenchyma that is part of an endopserm." [ISBN:0080374913, POC:curators] comment: Often devoid of intercellular spaces. is_a: PO:0025067 ! seed storage parenchyma relationship: part_of PO:0009089 ! endosperm [Term] id: PO:0005417 name: phloem namespace: plant_structure def: "A portion of vascular tissue whose principal function is conducting organic substances." [GR:pj] subset: TraitNet is_a: PO:0009015 ! portion of vascular tissue [Term] id: PO:0005421 name: parenchyma namespace: plant_structure def: "A portion of ground tissue composed of polyhedral cells typically with thin, non-lignified cellulosic cell walls and nucleate living protoplasts." [POC:curators] comment: Parenchyma contains relatively unspecialized cells. subset: TraitNet synonym: "portion of parenchyma tissue" EXACT [] xref: OBO_SF_PO:3007987 is_a: PO:0025059 ! portion of ground tissue [Term] id: PO:0005423 name: collenchyma namespace: plant_structure def: "Living tissue composed of more or less elongated cells with thick nonlignified primary cell walls." [GR:pj] subset: TraitNet synonym: "supporting tissue" RELATED [] is_a: PO:0025059 ! portion of ground tissue [Term] id: PO:0005426 name: chlorenchyma namespace: plant_structure def: "Chloroplast-containing parenchyma tissue." [ISBN:0080374913] subset: TraitNet synonym: "portion of chlorenchyma tissue" EXACT [] is_a: PO:0005421 ! parenchyma [Term] id: PO:0005427 name: sclerenchyma namespace: plant_structure def: "A supporting tissue composed of fibers or sclereids." [ISBN:0080374913] subset: TraitNet is_a: PO:0025059 ! portion of ground tissue [Term] id: PO:0005597 name: cambium namespace: plant_structure def: "A lateral meristem, the cells of which divide mostly periclinally." [ISBN:0080374913] subset: TraitNet is_a: PO:0020145 ! lateral meristem [Term] id: PO:0005598 name: vascular cambium namespace: plant_structure def: "A lateral meristem, the cells of which give rise to secondary xylem and phloem, leading to an increase in girth." [GR:pj] subset: TraitNet is_a: PO:0005597 ! cambium relationship: part_of PO:0005020 ! vascular bundle [Term] id: PO:0005599 name: cork cambium namespace: plant_structure def: "Lateral meristem which produces the phellem (cork) and the phelloderm." [ISBN:0080374913] subset: TraitNet synonym: "phellogen" RELATED [] is_a: PO:0005597 ! cambium relationship: part_of PO:0005048 ! shoot axis periderm [Term] id: PO:0005621 name: angular collenchyma namespace: plant_structure def: "OBSOLETE. A form of collenchyma in which the primary wall thickening is most prominent in the angles where three or more cells are joined." [GR:pj, ISBN:0080374913] comment: The term was made obsolete because angular form is a common attribute of ordinary collenchyma. is_obsolete: true [Term] id: PO:0005632 name: lacunar collenchyma namespace: plant_structure def: "OBSOLETE. A collenchyma characterized by intercellular spaces and cell wall thickenings facing the intercellular spaces." [GR:pj, ISBN:0080374913] comment: The term was made obsolete because the lacunar form is an attribute of regular collenchyma. is_obsolete: true [Term] id: PO:0005633 name: lamellar collenchyma namespace: plant_structure def: "OBSOLETE. A collenchyma in which cell wall thickenings are deposited mainly on tangential walls." [GR:pj, ISBN:0080374913] comment: The term was made obsolete because lamellar form is an attribute of regular collenchyma. synonym: "plate collenchyma" RELATED [] synonym: "tangential collenchyma" RELATED [] is_obsolete: true [Term] id: PO:0005645 name: leaf mesophyll namespace: plant_structure def: "The chloroplast-containing, photosynthetic parenchymatous tissue situated between the two epidermal layers of the foliage leaf." [GR:pj, ISBN:0080374913] subset: TraitNet synonym: "foliage leaf mesophyll" RELATED [] synonym: "leaf parenchyma" RELATED [] is_a: PO:0006070 ! mesophyll relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0005647 name: spongy mesophyll namespace: plant_structure def: "Leaf mesophyll parenchyma characterized by little elongated cells, that are not closely packed and have conspicuous intercellular spaces." [GR:pj, ISBN:0080374913] subset: TraitNet synonym: "spongy parenchyma" RELATED [] is_a: PO:0006070 ! mesophyll relationship: part_of PO:0005645 ! leaf mesophyll [Term] id: PO:0005648 name: palisade mesophyll namespace: plant_structure def: "Parenchyma containing closely packed elongated chlorenchymatous cells oriented perpendicular to the leaf surface and which are active in photosynthesis." [GR:pj, ISBN:0080374913] subset: TraitNet synonym: "palisade parenchyma" RELATED [] is_a: PO:0006070 ! mesophyll relationship: part_of PO:0005645 ! leaf mesophyll [Term] id: PO:0005656 name: portion of secretory tissue namespace: plant_structure def: "Tissues that form specialized structures producing a secretion." [GR:pj, ISBN:047124529] comment: The synonym gland does not imply non-secretory 'glands'. subset: TraitNet synonym: "gland" RELATED [] is_a: PO:0009007 ! portion of plant tissue [Term] id: PO:0005660 name: hydathode namespace: plant_structure def: "A structural modification of vascular and non-vascular tissues, usually in a leaf, that permits the release of water through a pore in the epidermis." [GR:pj, ISBN:0080374913] is_a: PO:0005656 ! portion of secretory tissue is_a: PO:0009015 ! portion of vascular tissue [Term] id: PO:0005661 name: salt gland namespace: plant_structure def: "A specialized tissue where excess salt absorbed in water from the soil is concentrated, being stores or excreted." [GR:pj] comment: A crust of salt forms on leaves which tastes bad and the white surfaces act to reflect light. Example, as is Mangrove vegetation. is_a: PO:0005656 ! portion of secretory tissue [Term] id: PO:0005665 name: resin canal namespace: plant_structure def: "A duct of schizogenous origin lined with resin-secreting cells and containing resin." [GR:pj, ISBN:0080374913] synonym: "resin duct" RELATED [] is_a: PO:0005656 ! portion of secretory tissue [Term] id: PO:0005669 name: oil gland namespace: plant_structure def: "A gland or a cavity lined with cells that secrete oils." [GR:pj] comment: Oil glands are schizogenous. synonym: "oil cavity" RELATED [] is_a: PO:0005656 ! portion of secretory tissue [Term] id: PO:0005679 name: epidermis namespace: plant_structure def: "A portion of plant tissue composed of epidermal cells that develops from the protoderm and covers the surface of a plant structure." [POC:curators] comment: The epidermis can be composed of one or more layers of cells. In some species, the epidermis is replaced by periderm.\nEpidermis can also include trichomes and stomatal pores. subset: TraitNet synonym: "dermal tissue" EXACT [] synonym: "epidermal layer" EXACT [] synonym: "multiseriate epidermis" RELATED [] xref: OBO_SF_PO:3008011 is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0006210 ! protoderm [Term] id: PO:0005702 name: aerenchyma namespace: plant_structure def: "A portion of parenchyma tissue containing particularly large intercellular spaces of schizogenous or lysigenous origin." [GR:pj, ISBN:0080374913] comment: As applied to an intercellular space, originating by one or a combination of two processes, separation and degradation of cell walls. subset: TraitNet synonym: "portion of aerenchyma tissue" RELATED [] is_a: PO:0005421 ! parenchyma [Term] id: PO:0005704 name: rhexigenous aerenchyma namespace: plant_structure def: "OBSOLETE. Aerenchyma originating by rupture of cells." [GR:pj, ISBN:0080374913] comment: The term was made obsolete because rhexigenous form is an attribute of regular aerenchyma. is_obsolete: true [Term] id: PO:0005706 name: lysigenous aerenchyma namespace: plant_structure def: "OBSOLETE. Aerenchyma originating by dissolution of cells." [GR:pj, ISBN:0080374913] comment: The term was made obsolete because lysigenous form is an attribute of regular aerenchyma. is_obsolete: true [Term] id: PO:0005708 name: cortex namespace: plant_structure def: "A maximal portion of ground tissue between the vascular system and the epidermis in a plant." [POC:curators] subset: TraitNet xref: OBO_SF_PO:3011071 is_a: PO:0025059 ! portion of ground tissue [Term] id: PO:0005752 name: promeristem namespace: plant_structure def: "OBSOLETE. Meristematic tissue consisting of apical initials, together with cells derived from them and which are still close to the initial." [GR:pj, ISBN:0080374913] is_obsolete: true [Term] id: PO:0005772 name: exodermis namespace: plant_structure def: "The sub-epidermal layer or layers of cells of the root similar in structure and cytochemical characteristics of  the endodermis, the outermost layer or layers of cells of the cortex." [GR:pj, ISBN:0080374913] comment: The cell walls are thickened and contain suberin. Absent in pteridophytes, fibrous in Phoenix and accompanied by sclerenchyma in Ananas. synonym: "root hypodermis" RELATED [] is_a: PO:0005051 ! hypodermis relationship: part_of PO:0000258 ! root cortex [Term] id: PO:0005848 name: secondary xylem namespace: plant_structure def: "A portion of xylem tissue that develops from a vascular cambium." [ISBN:0471245194, POC:curators] comment: Absent in some dicots and most monocots. The "wood" of gymnosperm and dicot angiosperm trees, shrubs, and lianas. subset: TraitNet synonym: "wood" EXACT [] is_a: PO:0005352 ! xylem relationship: develops_from PO:0005598 ! vascular cambium [Term] id: PO:0005849 name: primary xylem namespace: plant_structure def: "A portion of xylem tissue of the primary plant body." [GR:pj, ISBN:0122151704, ISBN:0471245194] comment: In stem or root it is differentiated behind the apical meristem. subset: TraitNet is_a: PO:0005352 ! xylem [Term] id: PO:0006000 name: Poaceae hull namespace: plant_structure def: "A collective phyllome structure that encloses a fruit of the Poaceae (caryopsis) and develops from the dried lemma and palea." [POC:rw] subset: Maize subset: Poaceae subset: Rice is_a: PO:0025023 ! collective phyllome structure relationship: develops_from PO:0009037 ! lemma relationship: develops_from PO:0009038 ! palea relationship: part_of PO:0006342 ! infructescence [Term] id: PO:0006001 name: phyllome namespace: plant_structure def: "A lateral plant organ produced by a shoot apical meristem." [POC:curators] subset: reference subset: TraitNet is_a: PO:0009008 ! plant organ relationship: part_of PO:0009006 ! shoot system [Term] id: PO:0006002 name: lower glume namespace: plant_structure alt_id: PO:0006027 alt_id: PO:0006031 def: "The proximal/basal of the two glumes." [GR:pj] synonym: "lower empty glume" RELATED [] synonym: "lower rudimentary glume" RELATED [] synonym: "outer empty glume" RELATED [] synonym: "outer glume" RELATED [] synonym: "outer rudimentary glume" RELATED [] is_a: PO:0009039 ! glume [Term] id: PO:0006003 name: scale leaf namespace: plant_structure def: "A reduced and more or less non-photosynthetic leaf, often associated with a vegetatively propagating organ such as a rhizome or perennating bud." [ISBN:0080374913] comment: Sometimes referring specifically to such leaves on a seedling. subset: reference subset: TraitNet synonym: "cataphyll" RELATED [] is_a: PO:0006001 ! phyllome [Term] id: PO:0006004 name: upper glume namespace: plant_structure alt_id: PO:0006028 alt_id: PO:0006030 def: "The apical/distal of the two glumes." [GR:pj] synonym: "inner empty glume" RELATED [] synonym: "inner glume" RELATED [] synonym: "inner rudimentary glume" RELATED [] synonym: "upper empty glume" RELATED [] synonym: "upper rudimentary glume" RELATED [] is_a: PO:0009039 ! glume [Term] id: PO:0006005 name: carpel anlagen namespace: plant_structure def: "A portion of meristem tissue that is a presumptive region on a floral meristem where carpel primordia would initiate." [PMID:14729915] is_a: PO:0009013 ! meristem relationship: part_of PO:0000229 ! floral meristem [Term] id: PO:0006006 name: primary parietal cell layer namespace: plant_structure def: "A primary parietal cell and adjacent cells." [GR:pj, PMID:2476454] subset: reference is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0000002 ! anther wall [Term] id: PO:0006007 name: secondary parietal cell layer namespace: plant_structure def: "The cells of the primary parietal cell layer undergo a periclinal division resulting in the formation of the two secondary parietal layers." [GR:pj, PMID:2476454] subset: reference is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0006006 ! primary parietal cell layer relationship: part_of PO:0000002 ! anther wall [Term] id: PO:0006008 name: inner secondary parietal cell layer namespace: plant_structure def: "One of the secondary parietal layer formed towards inner side after the cells of the primary parietal cell layer undergo a periclinal division. It divides periclinally to form the middle layer externally and the tapetum internally." [GR:pj, PMID:2476454] is_a: PO:0006007 ! secondary parietal cell layer [Term] id: PO:0006009 name: outer secondary parietal cell layer namespace: plant_structure def: "One of the secondary parietal layer formed towards outside after the cells of the primary parietal cell layer undergo a periclinal division. It differentiates into the endothecium." [GR:pj, PMID:2476454] is_a: PO:0006007 ! secondary parietal cell layer [Term] id: PO:0006010 name: primary parietal cell namespace: plant_structure def: "It is formed by the division of a archesporial cell." [PMID:2476454] is_a: PO:0009002 ! plant cell relationship: develops_from PO:0006014 ! male archesporial cell relationship: part_of PO:0006006 ! primary parietal cell layer [Term] id: PO:0006011 name: lateral vein namespace: plant_structure def: "An unbranched second order vein of the grass leaf blade." [GR:pj] is_a: PO:0020140 ! secondary vein [Term] id: PO:0006012 name: leaf collar namespace: plant_structure def: "A thin band of intercalary meristematic tissue at the junction of a leaf blade (lamina) and a leaf sheath found in grasses." [GR:pj, ISBN:0080374913] is_a: PO:0009013 ! meristem relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0006013 name: juice sac namespace: plant_structure def: "As found in citrus the mature juice sac is a swollen sac with a slender stalk and a sac wall lined with layers of tightly arranged cells. It develops from a single cell of the endocarp. Endocarp develops from the carpellary inner epidermis." [GR:pj, web:http\://www.chineseplantscience.com/earticle_read.asp?id=12171] subset: Citrus synonym: "juice vesicle" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009086 ! endocarp [Term] id: PO:0006014 name: male archesporial cell namespace: plant_structure def: "It undergoes periclinal divisions, giving rise to an inner primary sporogenous cell (PSC) layer and an outer primary parietal cell (PPC)." [GR:pj, PMID:10465788] synonym: "anther archesporial cell" RELATED [] synonym: "male archesporial initial" RELATED [] is_a: PO:0009002 ! plant cell relationship: part_of PO:0006089 ! anther primordium [Term] id: PO:0006015 name: female archesporial cell namespace: plant_structure def: "In the majority of flowering plants including Arabidopsis<\\i>, the female archesporial cell elongates and polarizes longitudinally, and directly differentiates into the megasporocyte or megaspore mother cell (MMC). In some flowering plants, it undergoes a periclinal division, and subsequently the inner cell differentiates into the megasporocyte." [PMID:10465788] synonym: "female archesporial initial" EXACT [] synonym: "ovule archesporial cell" EXACT [] is_a: PO:0009002 ! plant cell relationship: part_of PO:0000018 ! ovule primordium [Term] id: PO:0006016 name: leaf epidermis namespace: plant_structure def: "A portion of phyllome epidermis that is part of a leaf." [POC:curators] synonym: "foliage leaf epidermis" RELATED [] is_a: PO:0025157 ! phyllome epidermis relationship: part_of PO:0025034 ! leaf [Term] id: PO:0006017 name: helobial endosperm namespace: plant_structure def: "An endosperm in which the first karyokinetic event is accompanied by the formation of a horizontal wall which divides the central cell into unequal regions. The larger one is the micropylar chamber in which cytokinesis does not occur and the smaller one is the chalazal chamber." [ISBN:0080374913] is_a: PO:0009089 ! endosperm [Term] id: PO:0006018 name: leaf adaxial epidermis namespace: plant_structure def: "A portion of shoot epidermis that covers the adaxial/upper surface of a leaf." [POC:rw] comment: Used to refer to an adaxial epidermis of an entire leaf. More specific terms exist for leaf lamina adaxial epidermis and petiole adaxial epidermis. synonym: "upper epidermis" RELATED [] is_a: PO:0006016 ! leaf epidermis [Term] id: PO:0006019 name: leaf abaxial epidermis namespace: plant_structure def: "A portion of leaf epidermis that covers the abaxial/lower surface of a leaf." [POC:curators] comment: Used to refer to an abaxial epidermis of an entire leaf. More specific terms exist for leaf lamina abaxial epidermis and petiole abaxial epidermis. synonym: "lower epidermis" RELATED [] is_a: PO:0006016 ! leaf epidermis [Term] id: PO:0006020 name: lateral root apical meristem namespace: plant_structure alt_id: PO:0003013 def: "A root apical meristem found that is part of a lateral root." [GR:pj] comment: This is different from root lateral meristem. synonym: "apical meristem of lateral root" RELATED [] synonym: "lateral root meristem" RELATED [] is_a: PO:0020147 ! root apical meristem relationship: part_of PO:0000027 ! lateral root tip [Term] id: PO:0006021 name: adventitious root apical meristem namespace: plant_structure def: "A root apical meristem that is part of an adventitious root." [GR:pj] synonym: "crown root meristem" RELATED [] synonym: "seminal root meristem" RELATED [] is_a: PO:0020147 ! root apical meristem relationship: part_of PO:0000042 ! shoot-borne root [Term] id: PO:0006022 name: bundle sheath extension namespace: plant_structure def: "A strip of ground tissue present along the leaf veins and extending from the bundle sheath to the epidermis. It may be present on one or both sides of the vein and may consist of parenchyma or sclerenchyma." [ISBN:0080374913] is_a: PO:0025059 ! portion of ground tissue [Term] id: PO:0006023 name: bundle sheath namespace: plant_structure def: "A layer or layers of cells surrounding the vascular bundles of leaves. It may consist of parenchyma or sclerenchyma." [ISBN:0080374913] is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0006024 name: parenchyma sheath namespace: plant_structure def: "A single layered, parenchymatous bundle sheath characterized by presence of large quantity of starch." [ISBN:0080374913] comment: Homologous to the endodermis. synonym: "starch sheath" RELATED [] is_a: PO:0006023 ! bundle sheath [Term] id: PO:0006025 name: mestome sheath namespace: plant_structure def: "The inner endodermal sheath of a two layered bundle sheath. The cells are smaller in diameter compared to those in outer wall (starch sheath). The cell  walls are thick and contain suberized lamellae. They are analogous to endodermis." [ISBN:0080374913] is_a: PO:0006023 ! bundle sheath [Term] id: PO:0006032 name: awn namespace: plant_structure def: "A long bristle-like appendage found on the tip or back of various parts of the grass spikelet." [APWeb:Glossary] subset: reference xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009037 ! lemma [Term] id: PO:0006033 name: paleal apiculus namespace: plant_structure def: "A short, abrupt, flexible point present at the apex of the palea." [GR:pj] subset: reference synonym: "apiculus" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009038 ! palea [Term] id: PO:0006034 name: leaflet margin namespace: plant_structure def: "The margin of the leaflet." [POC:curators] is_a: PO:0020128 ! leaf margin relationship: part_of PO:0020049 ! leaflet [Term] id: PO:0006035 name: shoot epidermis namespace: plant_structure def: "A portion of epidermis that is part of a shoot system." [ISBN:047124529, POC:curators] comment: Often interrupted by stomata and other structures. The shoot epidermis is different from the root epidermis in its origin, function and structure. xref: OBO_SF_PO:3008016 is_a: PO:0005679 ! epidermis relationship: part_of PO:0009006 ! shoot system [Term] id: PO:0006036 name: root epidermis namespace: plant_structure alt_id: PO:0006037 def: "A portion of epidermis that is part of a root system." [ISBN:0080374913] comment: The root epidermis is different from the shoot epidermis in its origin, function and structure. synonym: "epiblem" RELATED [] synonym: "rhizodermis" RELATED [] xref: OBO_SF_PO:3008016 is_a: PO:0005679 ! epidermis relationship: part_of PO:0025025 ! root system [Term] id: PO:0006039 name: adventitious root epidermis namespace: plant_structure alt_id: PO:0006038 def: "A portion of root epidermis that is part of an adventitious root." [POC:rw] synonym: "crown root epidermis" RELATED [] is_a: PO:0006036 ! root epidermis relationship: part_of PO:0000042 ! shoot-borne root [Term] id: PO:0006040 name: sepal epidermis namespace: plant_structure def: "A portion of phyllome epidermis that is part of a sepal." [POC:curators] is_a: PO:0025157 ! phyllome epidermis relationship: part_of PO:0009031 ! sepal [Term] id: PO:0006041 name: petal epidermis namespace: plant_structure def: "A portion of phyllome epidermis that is part of a petal." [POC:curators] is_a: PO:0025157 ! phyllome epidermis relationship: part_of PO:0009032 ! petal [Term] id: PO:0006042 name: velamen namespace: plant_structure def: "A multiseriate epidermis found in aerial roots of some monocots. Most of its cells are dead and store water like a sponge." [ISBN:0080374913] synonym: "velamen radicum" RELATED [] is_a: PO:0006036 ! root epidermis [Term] id: PO:0006043 name: integument epidermis namespace: plant_structure def: "A portion epidermis that is part of an integument." [GR:pj, POC:rw] is_a: PO:0005679 ! epidermis relationship: part_of PO:0020021 ! integument [Term] id: PO:0006044 name: inner integument epidermis namespace: plant_structure def: "The epidermis of the inner integument in an ovule." [GR:pj] is_a: PO:0006043 ! integument epidermis relationship: part_of PO:0020022 ! inner integument [Term] id: PO:0006045 name: outer integument epidermis namespace: plant_structure def: "The epidermis of the outer integument in an ovule." [GR:pj] is_a: PO:0006043 ! integument epidermis relationship: part_of PO:0020023 ! outer integument [Term] id: PO:0006048 name: seed coat epidermis namespace: plant_structure def: "A portion of epidermis that is part of a seed coat." [POC:rw] xref: OBO_SF_PO:3008016 is_a: PO:0005679 ! epidermis relationship: part_of PO:0009088 ! seed coat [Term] id: PO:0006049 name: scutellum epidermis namespace: plant_structure def: "A portion of shoot epidermis that is part of the scutellum." [GR:pj] is_a: PO:0006035 ! shoot epidermis relationship: part_of PO:0020110 ! scutellum [Term] id: PO:0006050 name: exotesta namespace: plant_structure def: "That part of the seed coat that develops from the outer surface of the outer integument." [GR:pj] synonym: "seed coat outer epidermis" RELATED [] is_a: PO:0006048 ! seed coat epidermis relationship: part_of PO:0020057 ! testa [Term] id: PO:0006051 name: endotesta namespace: plant_structure def: "That part of the seed coat that develops from the inner epidermis of the outer integument." [GR:pj] synonym: "seed coat inner epidermis" RELATED [] is_a: PO:0006048 ! seed coat epidermis relationship: part_of PO:0020057 ! testa [Term] id: PO:0006052 name: petal abaxial epidermis namespace: plant_structure def: "A portion of petal epidermis that covers the abaxial/lower surface of a petal." [POC:rw] is_a: PO:0006041 ! petal epidermis [Term] id: PO:0006053 name: petal adaxial epidermis namespace: plant_structure def: "A portion of petal epidermis that covers the adaxial/upper surface of a petal." [POC:rw] is_a: PO:0006041 ! petal epidermis [Term] id: PO:0006054 name: sepal abaxial epidermis namespace: plant_structure def: "A portion of sepal epidermis that covers the abaxial/lower surface of a sepal." [POC:rw] is_a: PO:0006040 ! sepal epidermis [Term] id: PO:0006055 name: sepal adaxial epidermis namespace: plant_structure def: "A portion of sepal epidermis that covers the adaxial/upper surface of a sepal." [POC:rw] is_a: PO:0006040 ! sepal epidermis [Term] id: PO:0006056 name: cotyledon epidermis namespace: plant_structure def: "A portion of shoot epidermis that is part of the cotyledon." [GR:pj] is_a: PO:0006035 ! shoot epidermis relationship: part_of PO:0020030 ! cotyledon [Term] id: PO:0006057 name: cotyledon abaxial epidermis namespace: plant_structure def: "The abaxial/lower epidermal cell layer of the cotyledon." [GR:pj] is_a: PO:0006056 ! cotyledon epidermis [Term] id: PO:0006058 name: cotyledon adaxial epidermis namespace: plant_structure def: "The adaxial/upper epidermal cell layer of the cotyledon." [GR:pj] is_a: PO:0006056 ! cotyledon epidermis [Term] id: PO:0006060 name: filament epidermis namespace: plant_structure def: "A portion of stamen epidermis that is part of a filament." [POC:rw] is_a: PO:0025097 ! stamen epidermis relationship: part_of PO:0009067 ! filament [Term] id: PO:0006061 name: stigma epidermis namespace: plant_structure def: "A portion of carpel epidermis that is part of a stigma." [PMID:11951033, POC:rw] is_a: PO:0025096 ! carpel epidermis relationship: part_of PO:0009073 ! stigma [Term] id: PO:0006062 name: style epidermis namespace: plant_structure def: "A portion of carpel epidermis that is part of a style." [POC:rw] synonym: "transmitting tract epidermis" RELATED [] is_a: PO:0025096 ! carpel epidermis relationship: part_of PO:0009074 ! style [Term] id: PO:0006063 name: ovary epidermis namespace: plant_structure def: "A portion of epidermis that is part of an ovary." [POC:rw] is_a: PO:0005679 ! epidermis relationship: part_of PO:0005022 ! ovary wall [Term] id: PO:0006065 name: hypocotyl endodermis namespace: plant_structure def: "A portion of endodermis that is part of a hypocotyl." [POC:curators] is_a: PO:0000252 ! endodermis relationship: part_of PO:0020100 ! hypocotyl [Term] id: PO:0006066 name: petiole parenchyma namespace: plant_structure def: "A portion of parenchyma tissue that is part of a petiole." [POC:rw] is_a: PO:0005421 ! parenchyma relationship: part_of PO:0020038 ! petiole [Term] id: PO:0006067 name: cambium-like transitional zone namespace: plant_structure def: "OBSOLETE. A cup-shaped region in the shoot apical meristem found between the central mother cell and the rib and peripheral zone. The cells of this zone are derived from the corpus intials, but in some cases they arise also from tunica initials." [ISBN:0080374913] comment: If found, this zone is a temporary feature mostly in Gymnosperms. synonym: "adaxial meristem" RELATED [] synonym: "leaf meristem" RELATED [] synonym: "ventral meristem" RELATED [] is_obsolete: true [Term] id: PO:0006068 name: sepal parenchyma namespace: plant_structure def: "A portion of parenchyma tissue that is part of a sepal." [POC:rw] is_a: PO:0005421 ! parenchyma relationship: part_of PO:0009031 ! sepal [Term] id: PO:0006069 name: petal parenchyma namespace: plant_structure def: "A portion of parenchyma tissue that is part of a petal." [POC:rw] is_a: PO:0005421 ! parenchyma relationship: part_of PO:0009032 ! petal [Term] id: PO:0006070 name: mesophyll namespace: plant_structure def: "The chloroplast-containing, photosynthetic parenchymatous tissue situated between the two epidermal layers of the leaf or leaf like organs." [GR:pj] subset: TraitNet is_a: PO:0005426 ! chlorenchyma [Term] id: PO:0006071 name: petal mesophyll namespace: plant_structure def: "The chloroplast-containing, photosynthetic parenchymatous tissue situated between the two epidermal layers of the petal." [GR:pj] is_a: PO:0006069 ! petal parenchyma is_a: PO:0006070 ! mesophyll [Term] id: PO:0006072 name: sepal mesophyll namespace: plant_structure def: "The chloroplast-containing, photosynthetic parenchymatous tissue situated between the two epidermal layers of the sepal." [GR:pj] is_a: PO:0006068 ! sepal parenchyma is_a: PO:0006070 ! mesophyll [Term] id: PO:0006073 name: intercalary meristem namespace: plant_structure def: "A shoot meristem separated from the apical meristem in the primary body by more or less mature tissues." [ISBN:0080374913, ISBN:0122151704] subset: TraitNet is_a: PO:0006079 ! shoot meristem [Term] id: PO:0006074 name: procambium namespace: plant_structure def: "A portion of primary cambium that undergoes differentiation to form the primary vascular tissue." [ISBN:0080374913] is_a: PO:0005597 ! cambium relationship: part_of PO:0020144 ! apical meristem [Term] id: PO:0006075 name: primary phloem namespace: plant_structure def: "A portion of phloem tissue of the primary plant body." [ISBN:0122151704] comment: In stem or root it is differentiated behind the apical meristem. subset: TraitNet is_a: PO:0005417 ! phloem [Term] id: PO:0006076 name: metaphloem namespace: plant_structure def: "Part of the primary phloem that differentiates after the protophloem and before the secondary phloem, if any of the latter is formed." [ISBN:0471245194] is_a: PO:0009015 ! portion of vascular tissue relationship: part_of PO:0006075 ! primary phloem [Term] id: PO:0006077 name: protophloem namespace: plant_structure def: "The first-formed elements of the primary phloem." [ISBN:0471245194] is_a: PO:0009015 ! portion of vascular tissue relationship: part_of PO:0006075 ! primary phloem [Term] id: PO:0006078 name: primary vascular tissue namespace: plant_structure def: "OBSOLETE. The vascular tissue of the primary plant body at the embryonic stage. " [GR:pj] comment: Redundant to sec ... is_obsolete: true [Term] id: PO:0006079 name: shoot meristem namespace: plant_structure def: "A meristem that is part of a shoot system." [GR:pj] subset: TraitNet is_a: PO:0009013 ! meristem relationship: part_of PO:0009006 ! shoot system [Term] id: PO:0006080 name: secondary vascular tissue namespace: plant_structure def: "OBSOLETE. The vascular tissue derived from the vascular cambium because of the secondary growth." [GR:pj] comment: Redundant sec phloem and xylem is_obsolete: true [Term] id: PO:0006081 name: primary root apical meristem namespace: plant_structure def: "A root apical meristem that is part of a primary root." [GR:pj] synonym: "apical meristem of primary root" RELATED [] synonym: "embryonic root meristem" RELATED [] is_a: PO:0020147 ! root apical meristem relationship: part_of PO:0000026 ! primary root tip [Term] id: PO:0006082 name: abaxial protoderm namespace: plant_structure def: "The outermost layer of the shoot apical meristem which gives rise to the abaxial/lower leaf epidermis." [GR:pj, ISBN:0080374913] is_a: PO:0006210 ! protoderm [Term] id: PO:0006083 name: adaxial protoderm namespace: plant_structure def: "The outermost layer of the shoot apical meristem which gives rise to the adaxial/upper leaf epidermis." [GR:pj, ISBN:0080374913] is_a: PO:0006210 ! protoderm [Term] id: PO:0006084 name: portion of transfusion tissue namespace: plant_structure def: "Tissue consisting of tracheids and parenchyma cells, associated with the vascular bundle." [ISBN:0080374913] comment: Found generally in gymnosperm leaves. is_a: PO:0009007 ! portion of plant tissue [Term] id: PO:0006085 name: root meristem namespace: plant_structure alt_id: PO:0003001 def: "A meristem that is part of a root system." [GR:pj] synonym: "meristematic zone" RELATED [] is_a: PO:0009013 ! meristem relationship: part_of PO:0025025 ! root system [Term] id: PO:0006086 name: accessory transfusion tissue namespace: plant_structure def: "OBSOLETE. The accessory tissue extending laterally into the mesophyll rather than remaining associated with the vascular bundles." [ISBN:0080374913] comment: Not in current literature. is_obsolete: true [Term] id: PO:0006087 name: proliferation tissue namespace: plant_structure def: "OBSOLETE. Tissue that develops from phloem parenchyma in the outer portion of the inner bark accommodating the expansion in circumference." [ISBN:0080374913] comment: check the definition. is_obsolete: true [Term] id: PO:0006088 name: primary sporogenous cell namespace: plant_structure def: "It is formed by the division of the male archesporial initial. After several mitotic divisions these cells differentiate into pollen mother cells." [PMID:12897248] is_a: PO:0009002 ! plant cell relationship: develops_from PO:0006014 ! male archesporial cell [Term] id: PO:0006089 name: anther primordium namespace: plant_structure def: "A primordium that will develop into anther." [POC:curators] is_a: PO:0025127 ! primordium [Term] id: PO:0006090 name: organogenic callus namespace: plant_structure def: "A type of cultured callus that has competence to form any organ such as root, leaf, shoot, leafless shoot or bare stem, etc." [POC:curators] synonym: "meristematic callus" RELATED [] is_a: PO:0000009 ! cutured callus [Term] id: PO:0006091 name: embryogenic callus namespace: plant_structure def: "A type of cultured callus that form embryo-like structures such as somatic embryos." [POC:curators] is_a: PO:0000009 ! cutured callus [Term] id: PO:0006109 name: pith namespace: plant_structure def: "A maximal portion of parenchyma in the center of a shoot axis or root." [ISBN:0080280307] subset: TraitNet synonym: "medulla" EXACT [ISBN:0471244554 "Esau 1965"] xref: OBO_SF_PO:3011068 is_a: PO:0005421 ! parenchyma [Term] id: PO:0006200 name: fascicular cambium namespace: plant_structure def: "Vascular cambium  originating from procambium within vascular bundles or fascicles." [ISBN:047124529] is_a: PO:0005598 ! vascular cambium [Term] id: PO:0006201 name: interfascicular cambium namespace: plant_structure def: "Vascular cambium arising between vascular bundles or fascicles, in the interfascicular parenchyma or pith." [ISBN:047124529] is_a: PO:0005598 ! vascular cambium [Term] id: PO:0006202 name: interfascicular region namespace: plant_structure def: "A portion of ground tissue located between vascular bundles in a shoot axis." [ISBN: 0716710072, ISBN:0471244554] comment: Inapplicable for nearly all monocots. synonym: "medullary ray" EXACT [ISBN:0471244554 "Esau 1965. Plant Anatomy, second edition"] synonym: "pith ray" EXACT [ISBN:0-7167-1007-2 "Raven et al. 2005"] xref: OBO_SF_PO:3011073 is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0025029 ! shoot axis [Term] id: PO:0006203 name: pericycle namespace: plant_structure def: "A portion of ground tissue that is part of a root stele located between the phloem and endodermis." [ISBN:047124529] subset: reference is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0020124 ! root stele [Term] id: PO:0006204 name: sporocyte namespace: plant_structure def: "A diploid (2n) cell that undergoes meiosis and produces four haploid (1n) spores." [GR:pj] synonym: "meiocyte" RELATED [] is_a: PO:0009002 ! plant cell [Term] id: PO:0006205 name: spongy mesophyll cell namespace: plant_structure def: "Irregularly-shaped, chlorenchymatous cell, separated by large air spaces." [GR:pj] comment: Usually found in the abaxial/lower part of the leaf mesophyll as in a dorsiventral leaf, but between two palisade parenchyma layers in an isobilateral leaf. subset: TraitNet synonym: "spongy parenchyma cell" RELATED [] is_a: PO:0004006 ! mesophyll cell relationship: part_of PO:0005647 ! spongy mesophyll [Term] id: PO:0006206 name: palisade mesophyll cell namespace: plant_structure def: "Elongated chlorenchymatous cell oriented perpendicular to the leaf surface and which is active in photosynthesis." [GR:pj] comment: Usually found in the adaxil/upper part of the leaf mesophyll. subset: TraitNet synonym: "palisade parenchyma cell" RELATED [] is_a: PO:0004006 ! mesophyll cell relationship: part_of PO:0005648 ! palisade mesophyll [Term] id: PO:0006207 name: exodermal passage cell namespace: plant_structure def: "A short cell in the dimorphic type of exodermis with cell wall that remains non-thickened." [PMID:11709575, TAIR:ki] is_a: PO:0000353 ! passage cell relationship: part_of PO:0005772 ! exodermis [Term] id: PO:0006208 name: endodermal passage cell namespace: plant_structure def: "Cell in the endodermal layer of the root with cell wall that remains non-thickened." [TAIR:ki] is_a: PO:0000353 ! passage cell relationship: part_of PO:0000252 ! endodermis [Term] id: PO:0006209 name: lateral root epidermis namespace: plant_structure def: "OBSOLETE. The outer most cell layer of the lateral roots." [GR:pj] is_obsolete: true [Term] id: PO:0006210 name: protoderm namespace: plant_structure def: "A meristem that develops from the outer layer of an apical meristem and gives rise to a portion of epidermis." [ISBN:047124529, POC:curators] comment: It may or may not arise from independent initials.  Some researchers also call it an epidermis in meristematic state. synonym: "dermatogen cell" RELATED [] xref: OBO_SF_PO:3016651 is_a: PO:0009013 ! meristem [Term] id: PO:0006211 name: separation layer namespace: plant_structure def: "A portion of plant tissue that is part of an abscission zone and contains cells that develop an abnormal wall chemistry and swelling resulting in their easily being pulled apart along the pectin-rich middle lamella." [ISBN:0122151704] comment: Directly involved in the weakening process of abscission. is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0000146 ! abscission zone [Term] id: PO:0006212 name: protective layer namespace: plant_structure def: "A portion of plant tissue composed of a layer of cells that is part of the abscission zone that have lignin and suberin depositions and are found on the axial side of the break or exposed surface of abscission." [ISBN:0122151704] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0000146 ! abscission zone [Term] id: PO:0006213 name: root aerenchyma namespace: plant_structure def: "Parenchyma tissue containing particularly large intercellular spaces in the tissue of roots." [GR:pj] subset: TraitNet is_a: PO:0005702 ! aerenchyma relationship: part_of PO:0009005 ! root [Term] id: PO:0006214 name: stem aerenchyma namespace: plant_structure def: "A portion of aerenchyma that is part of a stem." [POC:curators] subset: TraitNet is_a: PO:0005702 ! aerenchyma relationship: part_of PO:0009047 ! stem [Term] id: PO:0006215 name: leaf aerenchyma namespace: plant_structure def: "Spongy parenchyma tissue containing particularly large intercellular spaces in the leaf mesophyll." [GR:pj] is_a: PO:0005702 ! aerenchyma relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0006216 name: internal phloem namespace: plant_structure def: "Primary phloem tissue positioned internal to the primary xylem." [ISBN:0122151704] synonym: "intraxylary phloem" RELATED [] is_a: PO:0006075 ! primary phloem [Term] id: PO:0006218 name: exotegmen namespace: plant_structure def: "That part of the seed coat that develops from the outer surface of the inner integument." [GR:pj] is_a: PO:0006048 ! seed coat epidermis relationship: part_of PO:0020056 ! tegmen [Term] id: PO:0006219 name: endotegmen namespace: plant_structure def: "That part of the seed coat that develops from the inner epidermis of the inner integument." [GR:pj] is_a: PO:0006048 ! seed coat epidermis relationship: part_of PO:0020056 ! tegmen [Term] id: PO:0006220 name: central endosperm namespace: plant_structure def: "A portion of plant tissue that is the central region of an endosperm, composed of cells that are significantly larger than those at the periphery, especially the aleurone and sub-aleurone layers." [TAIR:ki] comment: Also called starchy endosperm region (characteristic of some grasses). is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009089 ! endosperm [Term] id: PO:0006221 name: articulated laticifer cell namespace: plant_structure def: "A laticifer cell in which the walls between contiguous cells may partly or completely disappear." [ISBN:0471245208, TAIR:ki] synonym: "laticiferous vessel" RELATED [] is_a: PO:0025031 ! laticifer cell relationship: part_of PO:0005006 ! articulated laticifer [Term] id: PO:0006222 name: non-articulated laticifer cell namespace: plant_structure def: "A laticifer cell that elongates indefinitely and grows intrusively between the walls of meristematic cells." [PMID:11732189] synonym: "simple laticifer" RELATED [] is_a: PO:0025031 ! laticifer cell relationship: part_of PO:0005007 ! non-articulated laticifer [Term] id: PO:0006300 name: obsolete plant structure namespace: plant_structure def: "OBSOLETE. The instances of this parent term are those anatomical terms which have become obsolete." [GR:pj] is_obsolete: true [Term] id: PO:0006301 name: corpus namespace: plant_structure def: "OBSOLETE. Group of cells located beneath anticlinally dividing peripheral layers (tunica) and dividing in many planes. In apical shoot meristem. Such division cause the increase in the volume of shoot." [GR:pj, ISBN:0080374913] comment: The term has been made obsolete because this concept is used in a very loose sense. is_obsolete: true [Term] id: PO:0006302 name: tunica namespace: plant_structure def: "OBSOLETE. The outermost layer or layers in the shoot apical meristem of the Angiosperms in which the plane of division is almost anticlinal. This layer contributes to surface growth." [GR:pj, ISBN:047124529] comment: The term has been made obsolete because this concept is used in a very loose sense. is_obsolete: true [Term] id: PO:0006303 name: L1 namespace: plant_structure def: "OBSOLETE. The outer layer of the tunica." [GR:pj] comment: A similar term L1 meristem (PO:0009020) occurs. is_obsolete: true [Term] id: PO:0006304 name: L2 namespace: plant_structure def: "OBSOLETE. The second layer of the tunica." [GR:pj] comment: A similar term L2 meristem (PO:0009021) occurs. is_obsolete: true [Term] id: PO:0006305 name: L3 namespace: plant_structure def: "OBSOLETE. The innermost layer of the tunica." [GR:pj] comment: A similar term L3 meristem (PO:0009022) occurs. is_obsolete: true [Term] id: PO:0006306 name: shoot procambium namespace: plant_structure def: "A derivative of the apical meristem which undergoes differentiation to form the primary vascular tissue of a shoot." [GR:pj] is_a: PO:0006074 ! procambium relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0006307 name: root procambium namespace: plant_structure def: "A derivative of the apical meristem which undergoes differentiation to form the primary vascular tissue of a root." [GR:pj] is_a: PO:0006074 ! procambium relationship: part_of PO:0006085 ! root meristem [Term] id: PO:0006308 name: root lateral meristem namespace: plant_structure def: "Meristem of the root located parallel to the sides of the axis." [ISBN:047124529] comment: Generally causes root thickening. Not to be confused with lateral root meristem, which is the meristem of the lateral root. is_a: PO:0006085 ! root meristem is_a: PO:0020145 ! lateral meristem relationship: part_of PO:0020121 ! lateral root [Term] id: PO:0006309 name: tassel spikelet namespace: plant_structure def: "Ultimate inflorescence branch of the maize tassel." [GR:pj] subset: Maize is_a: PO:0009051 ! spikelet relationship: develops_from PO:0006358 ! tassel spikelet pair meristem relationship: part_of PO:0020126 ! tassel [Term] id: PO:0006310 name: tassel floret namespace: plant_structure def: "Flowers of the spikelets of maize tassel." [GR:pj] subset: Maize is_a: PO:0006318 ! Poaceae floret relationship: part_of PO:0006309 ! tassel spikelet [Term] id: PO:0006311 name: tassel sessile spikelet namespace: plant_structure def: "Ultimate inflorescence branch of the maize tassel without a pedicel, developing from the spikelet pair meristem." [GR:pj] subset: Maize is_a: PO:0006309 ! tassel spikelet [Term] id: PO:0006312 name: tassel pedicellate spikelet namespace: plant_structure def: "Ultimate inflorescence branch of the maize tassel with a pedicel, developing from the spikelet pair meristem." [GR:pj] subset: Maize is_a: PO:0006309 ! tassel spikelet [Term] id: PO:0006313 name: lower floret of pedicellate spikelet of tassel namespace: plant_structure def: "The lower of the two florets of the pedicellate spikelet of a maize tassel." [GR:pj] is_a: PO:0006310 ! tassel floret relationship: part_of PO:0006312 ! tassel pedicellate spikelet [Term] id: PO:0006314 name: upper floret of pedicellate spikelet of tassel namespace: plant_structure def: "One of the two florets placed above the lower floret on the pedicellate spikelet rachilla of a maize tassel." [GR:pj] is_a: PO:0006310 ! tassel floret relationship: part_of PO:0006312 ! tassel pedicellate spikelet [Term] id: PO:0006315 name: lower floret of sessile spikelet of tassel namespace: plant_structure def: "The lower of the two florets of the sessile spikelet of a maize tassel." [GR:pj] is_a: PO:0006310 ! tassel floret relationship: part_of PO:0006311 ! tassel sessile spikelet [Term] id: PO:0006316 name: upper floret of sessile spikelet of tassel namespace: plant_structure def: "One of the two florets placed above the lower floret on the sessile spikelet rachilla of a maize tassel." [GR:pj] is_a: PO:0006310 ! tassel floret relationship: part_of PO:0006311 ! tassel sessile spikelet [Term] id: PO:0006317 name: gynoecium of tassel floret namespace: plant_structure def: "Collectively the carpels of a maize tassel floret." [GR:pj] comment: The development of the gynoecium in the tassel floret of a normal maize plant is aborted and is present in a rudimentary state. is_a: PO:0006384 ! Poaceae gynoecium relationship: part_of PO:0006310 ! tassel floret [Term] id: PO:0006318 name: Poaceae floret namespace: plant_structure alt_id: PO:0025090 def: "A floret that is part of a spikelet." [Poc:curators] comment: Found in Poaceae. It is not clear what the lemma, palea and lodicule correspond to in conventional flowers, therefore we are not making any assumptions of homology at the present time. subset: Maize subset: Poaceae subset: reference synonym: "Poaceae floret" EXACT [] is_a: PO:0009082 ! floret relationship: develops_from PO:0006329 ! Poaceae floret meristem relationship: part_of PO:0009051 ! spikelet [Term] id: PO:0006319 name: spikelet pedicel namespace: plant_structure def: "Inflorescence branch that terminates in a spikelet." [Poc:curators] comment: This is not a pedicel in the strict sense, but is the ultimate naked part of the inflorescence axis. is_a: PO:0009052 ! pedicel relationship: part_of PO:0009051 ! spikelet [Term] id: PO:0006320 name: ear spikelet namespace: plant_structure def: "Ultimate inflorescence branch of the maize ear." [GR:pj] is_a: PO:0009051 ! spikelet relationship: part_of PO:0020136 ! Zea ear [Term] id: PO:0006321 name: second order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a first order inflorescence axis." [POC:rw] subset: Angiosperm synonym: "primary inflorescence branch" EXACT [] synonym: "second order inflorescence branch" RELATED [POC:rw "This is the old name for this term. It was renamed for clarity."] is_a: PO:0009081 ! inflorescence branch [Term] id: PO:0006322 name: third order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a second order inflorescence axis." [POC:rw] synonym: "secondary inflorescence branch" EXACT [] synonym: "third order inflorescence branch" RELATED [POC:rw "This is the old name for this term. It was renamed for clarity."] is_a: PO:0009081 ! inflorescence branch [Term] id: PO:0006323 name: tassel branch namespace: plant_structure def: "Any branch forming from the primary or higher order tassel axes." [GR:pj] is_a: PO:0009081 ! inflorescence branch relationship: part_of PO:0020126 ! tassel [Term] id: PO:0006324 name: central spike of tassel namespace: plant_structure def: "A first order inflorescence axis that is the central axis of a tassel." [POC:rw] synonym: "tassel rachis" RELATED [] is_a: PO:0025104 ! first order inflorescence axis relationship: part_of PO:0020126 ! tassel [Term] id: PO:0006325 name: inflorescence node namespace: plant_structure def: "A shoot node that is part of an inflorescence axis and where a spikelet, flower, floret or inflorescence branch is attached." [GR:pj] is_a: PO:0005004 ! shoot node relationship: part_of PO:0020122 ! inflorescence axis [Term] id: PO:0006326 name: inflorescence internode namespace: plant_structure def: "A shoot internode that is part of an inflorescence axis." [POC:curators] is_a: PO:0005005 ! shoot internode relationship: part_of PO:0020122 ! inflorescence axis [Term] id: PO:0006327 name: spikelet meristem namespace: plant_structure def: "An inflorescence apical meristem that gives rise to the two or more florets of a grass inflorescence." [GR:pj] is_a: PO:0009108 ! inflorescence apical meristem relationship: part_of PO:0009051 ! spikelet [Term] id: PO:0006328 name: spikelet pair meristem namespace: plant_structure def: "The meristem that produces two spikelet meristems, each of which produces two floral meristems." [GR:pj] comment: Found in some grass inflorescences. is_a: PO:0006327 ! spikelet meristem [Term] id: PO:0006329 name: Poaceae floret meristem namespace: plant_structure alt_id: PO:0025091 def: "A floral meristem that is part of a spikelet." [POC:rw] comment: Found in Poaceae. subset: Maize subset: Poaceae synonym: "Poaceae floret meristem" EXACT [] is_a: PO:0000229 ! floral meristem relationship: part_of PO:0009051 ! spikelet [Term] id: PO:0006330 name: gynophore namespace: plant_structure def: "A shoot axis that is an elongation of the floral axis that supports the carpels." [ISBN:0-521-25134-6] comment: A gynophore is only present when there is an elongation of the axis between the androecium and gynoecium. subset: reference is_a: PO:0025029 ! shoot axis relationship: part_of PO:0009046 ! flower [Term] id: PO:0006331 name: seed raphe namespace: plant_structure def: "A cardinal organ part that is a ridge on a seed that develops from a raphe." [ISBN:047124529, POC:curators] is_a: PO:0025001 ! cardinal organ part relationship: develops_from PO:0020027 ! raphe relationship: part_of PO:0009010 ! seed [Term] id: PO:0006332 name: seed funicle namespace: plant_structure def: "A stalk that is attached to a seed and is the remnants of a funicle." [POC:curators] is_a: PO:0025066 ! stalk relationship: develops_from PO:0020006 ! funicle relationship: part_of PO:0009010 ! seed [Term] id: PO:0006333 name: seed chalaza namespace: plant_structure def: "A remnant of the ovular chalaza that is part of the seed." [POC:curators] is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0020026 ! chalaza relationship: part_of PO:0009010 ! seed [Term] id: PO:0006334 name: seed micropyle namespace: plant_structure def: "A plant anatomical space that is enclosed by and forms an opening in a seed coat at the apex of a seed and is the remnant of a micropyle." [POC:curators] subset: TraitNet is_a: PO:0025117 ! plant anatomical space relationship: develops_from PO:0020025 ! micropyle relationship: part_of PO:0009088 ! seed coat [Term] id: PO:0006336 name: seed obturator namespace: plant_structure def: "An outgrowth of the seed funicle, that forms a bridge between the seed micropyle and other tissues. It is also a remnant form of the obturator found in the ovular funicle." [GR:pj] is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0020029 ! obturator relationship: part_of PO:0006332 ! seed funicle [Term] id: PO:0006337 name: inflorescence bract of ear namespace: plant_structure def: "The leaf subtending an ear of corn and acting as outer envelope of the ear." [GR:pj] synonym: "corn husk" RELATED [] synonym: "husk" RELATED [] synonym: "husk leaf" RELATED [] is_a: PO:0009054 ! inflorescence bract relationship: part_of PO:0020136 ! Zea ear [Term] id: PO:0006338 name: embryonic leaf namespace: plant_structure def: "An embryonic plant structure that is one of the first few leaves to develop from the embryonic shoot apical meristem." [GR:pj] is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0006339 name: juvenile leaf namespace: plant_structure def: "Distinct from adult leaves, being characterized by particular anatomical traits namely, wax and trichome distribution, presence or absence of epidermal cell types, cell wall shape and biochemistry." [GR:pj, MaizeGDB:lv] comment: The first juvenile leaves are e.g. the embryonic leaves found in the grass kernel (caryopsis). is_a: PO:0009025 ! vascular leaf [Term] id: PO:0006340 name: adult leaf namespace: plant_structure def: "Adult leaves are characterized by particular anatomical traits namely, wax and trichome distribution, presence or absence of epidermal cell types, cell wall shape and biochemistry." [GR:pj, MaizeGDB:lv] comment: The adult leaves are placed above the juvenile (oldest) leaves. However in some plants the juvenile leaves may go on to establish as adult leaves. is_a: PO:0009025 ! vascular leaf [Term] id: PO:0006341 name: primary shoot namespace: plant_structure def: "The shoot developing from the embryonic shoot apical meristem." [UMSL:fz] synonym: "main stalk" RELATED [] is_a: PO:0009006 ! shoot system [Term] id: PO:0006342 name: infructescence namespace: plant_structure def: "A reproductive shoot system that develops from an inflorescence and has as parts all of the shoot axes distal to the most distal foliage leaf of a shoot axis and all of the fruits borne by those axes." [POC:rw] subset: Angiosperm subset: Musa synonym: "banana bunch" NARROW [CO_125:0000014] synonym: "fruit bunch" RELATED [] xref: OBO_SF_PO:2971891 is_a: PO:0025082 ! reproductive shoot system relationship: develops_from PO:0009049 ! inflorescence relationship: has_part PO:0009001 ! fruit [Term] id: PO:0006343 name: axillary shoot system namespace: plant_structure def: "A shoot-borne shoot system that develops from an axillary vegetative bud." [POC:curators] subset: Musa synonym: "axillary branch" RELATED [] synonym: "Musa sucker" NARROW [CO_125:0000042 "A shoot system arrising form an axillary bud at the base of a Musa plant."] is_a: PO:0004545 ! shoot-borne shoot system [Term] id: PO:0006344 name: shoot lateral meristem namespace: plant_structure def: "A shoot meristem located parallel to the sides of the axis." [Poc:curators] is_a: PO:0006079 ! shoot meristem is_a: PO:0020145 ! lateral meristem [Term] id: PO:0006345 name: pollen tube namespace: plant_structure def: "A tubular cell extension formed by the germinating pollen grain; carries the male gametes into the ovule." [ISBN:0471245208] comment: This term was made obsolete because it is a subcellular component. See GO for the term pollen tube (GO:0090406). Since a pollen tube is part_of a pollen tube cell, annotations for pollen tube may also go to the more general term pollen tube cell (PO:0025195). subset: reference subset: TraitNet is_obsolete: true consider: PO:0025195 [Term] id: PO:0006346 name: leaf intercalary meristem namespace: plant_structure def: "An intercalary meristem in the primary body of the leaf separated from the apical meristem by non-meristematic tissues." [GR:pj] is_a: PO:0006073 ! intercalary meristem relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0006347 name: stem intercalary meristem namespace: plant_structure def: "An intercalary meristem in the primary body of stem separated from the apical meristem by more or less mature tissues." [GR:pj] is_a: PO:0006073 ! intercalary meristem relationship: part_of PO:0020142 ! stem internode [Term] id: PO:0006348 name: ear pedicellate spikelet namespace: plant_structure def: "Ultimate pedicellate inflorescence branch of the maize ear that develops from the spikelet pair meristem." [GR:pj] is_a: PO:0006320 ! ear spikelet [Term] id: PO:0006349 name: ear sessile spikelet namespace: plant_structure def: "Ultimate sessile inflorescence branch of the maize ear that develops from the spikelet pair meristem." [GR:pj] is_a: PO:0006320 ! ear spikelet [Term] id: PO:0006350 name: upper floret of pedicellate spikelet of ear namespace: plant_structure def: "The uppermost of the two florets of the pedicellate spikelet rachilla of a maize ear. The upper floret on the ear usually develops into a functional one." [GR:pj] is_a: PO:0006354 ! ear floret relationship: part_of PO:0006348 ! ear pedicellate spikelet [Term] id: PO:0006351 name: lower floret of sessile spikelet of ear namespace: plant_structure def: "The lower of the two florets on the sessile spikelet of a maize ear." [GR:pj] comment: This floret does not usually develop into a functional one. is_a: PO:0006354 ! ear floret relationship: part_of PO:0006349 ! ear sessile spikelet [Term] id: PO:0006352 name: upper floret of sessile spikelet of ear namespace: plant_structure def: "One of the two florets placed above the lower floret on the sessile spikelet rachilla of a maize ear. This floret usually develops into a functional one." [GR:pj] is_a: PO:0006354 ! ear floret relationship: part_of PO:0006349 ! ear sessile spikelet [Term] id: PO:0006353 name: lower floret of pedicellate spikelet of ear namespace: plant_structure def: "The lower of the two florets of the pedicellate spikelet rachilla of a maize ear." [GR:pj] comment: The lower floret on the ear does not usually develop into a functional one. is_a: PO:0006354 ! ear floret relationship: part_of PO:0006348 ! ear pedicellate spikelet [Term] id: PO:0006354 name: ear floret namespace: plant_structure def: "Small flowers of the spikelets of maize ear." [GR:pj] is_a: PO:0006318 ! Poaceae floret relationship: part_of PO:0006320 ! ear spikelet [Term] id: PO:0006355 name: androecium of ear floret namespace: plant_structure def: "Collectively the stamens of maize ear floret." [GR:pj] comment: The development of the androecium in the ear floret of a normal maize plant is aborted and is present in a rudimentary state. is_a: PO:0006471 ! Zea androecium relationship: part_of PO:0006354 ! ear floret [Term] id: PO:0006356 name: lemma of tassel floret namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize tassel floret." [GR:pj] is_a: PO:0009037 ! lemma relationship: part_of PO:0006310 ! tassel floret [Term] id: PO:0006358 name: tassel spikelet pair meristem namespace: plant_structure def: "The meristem present on short tassel branch that produces two spikelet meristems, each of which produces two floral meristems in a maize tassel." [GR:pj] subset: Maize is_a: PO:0006328 ! spikelet pair meristem is_a: PO:0009107 ! tassel lateral meristem relationship: part_of PO:0009102 ! short tassel branch [Term] id: PO:0006359 name: palea of tassel floret namespace: plant_structure def: "In a maize tassel floret, the upper of the two bracts enclosing a flower." [GR:pj] is_a: PO:0009038 ! palea relationship: part_of PO:0006310 ! tassel floret [Term] id: PO:0006360 name: ear spikelet pair meristem namespace: plant_structure def: "A meristem that produces two spikelet meristems, each of which produces two floral meristems in a maize ear." [GR:pj] is_a: PO:0006328 ! spikelet pair meristem is_a: PO:0009110 ! ear lateral meristem [Term] id: PO:0006361 name: palea of ear floret namespace: plant_structure def: "In a maize ear floret, the upper of the two bracts enclosing a flower." [GR:pj] is_a: PO:0009038 ! palea relationship: part_of PO:0006354 ! ear floret [Term] id: PO:0006362 name: embryonic shoot apical meristem namespace: plant_structure def: "A vegetative shoot apical meristem at the apex of the embryonic axis." [GR:pj] is_a: PO:0008016 ! vegetative shoot apical meristem relationship: part_of PO:0019018 ! embryo axis [Term] id: PO:0006363 name: lemma of ear floret namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize ear floret." [GR:pj] is_a: PO:0009037 ! lemma relationship: part_of PO:0006354 ! ear floret [Term] id: PO:0006365 name: gynoecium of ear floret namespace: plant_structure def: "Collectively the carpels of a maize ear floret." [GR:pj] is_a: PO:0006384 ! Poaceae gynoecium relationship: part_of PO:0006354 ! ear floret [Term] id: PO:0006366 name: androecium of tassel floret namespace: plant_structure def: "Collectively the stamens of one floret of a tassel inflorescence of maize." [GR:pj] is_a: PO:0006471 ! Zea androecium relationship: part_of PO:0006310 ! tassel floret [Term] id: PO:0006367 name: glume of ear spikelet namespace: plant_structure def: "A bract in the ear inflorescence of a maize plant, subtending two florets." [GR:pj] is_a: PO:0009039 ! glume relationship: part_of PO:0006320 ! ear spikelet [Term] id: PO:0006368 name: glume of tassel spikelet namespace: plant_structure def: "A bract in the tassel inflorescence of a maize plant, subtending two florets." [GR:pj] is_a: PO:0009039 ! glume relationship: part_of PO:0006309 ! tassel spikelet [Term] id: PO:0006369 name: lower glume of ear spikelet namespace: plant_structure def: "The proximal/basal of the two glumes in the ear spikelet." [GR:pj] is_a: PO:0006002 ! lower glume is_a: PO:0006367 ! glume of ear spikelet [Term] id: PO:0006370 name: upper glume of tassel spikelet namespace: plant_structure def: "The apical/distal of the two glumes in the tassel spikelet." [GR:pj] is_a: PO:0006004 ! upper glume is_a: PO:0006368 ! glume of tassel spikelet [Term] id: PO:0006371 name: upper glume of ear spikelet namespace: plant_structure def: "TThe apical/distal of the two glumes in the ear spikelet." [GR:pj] is_a: PO:0006004 ! upper glume is_a: PO:0006367 ! glume of ear spikelet [Term] id: PO:0006372 name: lower glume of tassel spikelet namespace: plant_structure def: "The proximal/basal of the two glumes in the tassel spikelet." [GR:pj] is_a: PO:0006002 ! lower glume is_a: PO:0006368 ! glume of tassel spikelet [Term] id: PO:0006373 name: ear floret meristem namespace: plant_structure def: "Apical shoot meristem that gives rise to the organs of a maize ear floret." [GR:pj] subset: Maize is_a: PO:0006329 ! Poaceae floret meristem is_a: PO:0009109 ! ear meristem relationship: part_of PO:0006320 ! ear spikelet [Term] id: PO:0006374 name: tassel floret meristem namespace: plant_structure def: "Apical meristem that gives rise to the organs of a maize tassel floret." [GR:pj] subset: Maize is_a: PO:0006329 ! Poaceae floret meristem is_a: PO:0009106 ! tassel meristem relationship: part_of PO:0006309 ! tassel spikelet [Term] id: PO:0006375 name: ear apical meristem namespace: plant_structure def: "An inflorescence apical meristem that gives rise to the maize ear." [GR:pj] subset: Maize is_a: PO:0009108 ! inflorescence apical meristem is_a: PO:0009109 ! ear meristem relationship: part_of PO:0006505 ! central spike of ear [Term] id: PO:0006376 name: tassel apical meristem namespace: plant_structure def: "An inflorescence apical meristem that gives rise to the maize tassel." [GR:pj] subset: Maize is_a: PO:0009106 ! tassel meristem is_a: PO:0009108 ! inflorescence apical meristem relationship: part_of PO:0006324 ! central spike of tassel [Term] id: PO:0006377 name: tassel spikelet meristem namespace: plant_structure def: "Apical meristem that gives rise to the upper and lower florets of the maize tassel spikelets." [GR:pj] is_a: PO:0006327 ! spikelet meristem is_a: PO:0009106 ! tassel meristem [Term] id: PO:0006378 name: ear spikelet meristem namespace: plant_structure def: "Apical meristem that gives rise to the upper and lower florets of the maize ear spikelet." [GR:pj] subset: Maize is_a: PO:0006327 ! spikelet meristem is_a: PO:0009109 ! ear meristem [Term] id: PO:0006379 name: tassel spikelet rachilla namespace: plant_structure def: "The axis of the tassel spikelet, above the glumes." [GR:pj] subset: Maize is_a: PO:0006323 ! tassel branch is_a: PO:0009080 ! spikelet rachilla relationship: part_of PO:0006309 ! tassel spikelet [Term] id: PO:0006380 name: ear spikelet rachilla namespace: plant_structure def: "The axis of the ear spikelet, above the glumes." [GR:pj] is_a: PO:0009080 ! spikelet rachilla relationship: part_of PO:0006320 ! ear spikelet [Term] id: PO:0006381 name: lodicule of tassel floret namespace: plant_structure def: "In a tassel floret, one of two or three tiny scales or flaps of tissue outside the stamens, possibly representing reduced perianth segments." [APWeb:Glossary, GR:pj] is_a: PO:0009036 ! lodicule relationship: part_of PO:0006310 ! tassel floret [Term] id: PO:0006382 name: lodicule of ear floret namespace: plant_structure def: "In a Maize ear floret, one of two or three tiny scales or flaps of tissue, possibly representing reduced perianth segments." [APWeb:Glossary, GR:pj] is_a: PO:0009036 ! lodicule relationship: part_of PO:0006354 ! ear floret [Term] id: PO:0006383 name: Poaceae androecium namespace: plant_structure def: "Collectively the stamens of one grass floret." [GR:pj] is_a: PO:0009061 ! androecium relationship: part_of PO:0006318 ! Poaceae floret [Term] id: PO:0006384 name: Poaceae gynoecium namespace: plant_structure alt_id: PO:0006357 alt_id: PO:0025089 def: "A gynoecium that is part of a Poaceae floret." [POC:rw] comment: Gynoecium (sensu Zea) was merged with Poaceae gynoecium, because the Zea gynoecium is not structurally distinct from the Poaceae gynoecium. Hierarchy for gynoecium now matches floret and spikelet. subset: Maize subset: Poaceae synonym: "Zea gynoecium" NARROW [] is_a: PO:0009062 ! gynoecium relationship: part_of PO:0006318 ! Poaceae floret [Term] id: PO:0006385 name: lower glume of pedicellate spikelet of tassel namespace: plant_structure def: "The proximal/basal of the two glumes in the tassel pedicellate spikelet." [GR:pj] is_a: PO:0006372 ! lower glume of tassel spikelet relationship: part_of PO:0006312 ! tassel pedicellate spikelet [Term] id: PO:0006386 name: lower glume of sessile spikelet of tassel namespace: plant_structure def: "The proximal/basal of the two glumes in the tassel sessile spikelet." [GR:pj] is_a: PO:0006372 ! lower glume of tassel spikelet relationship: part_of PO:0006311 ! tassel sessile spikelet [Term] id: PO:0006387 name: upper glume of sessile spikelet of tassel namespace: plant_structure def: "The apical/distal of the two glumes in a tassel sessile spikelet." [GR:pj] is_a: PO:0006370 ! upper glume of tassel spikelet relationship: part_of PO:0006311 ! tassel sessile spikelet [Term] id: PO:0006388 name: upper glume of pedicellate spikelet of tassel namespace: plant_structure def: "The apical/distal of the two glumes in a tassel pedicellate spikelet." [GR:pj] is_a: PO:0006370 ! upper glume of tassel spikelet relationship: part_of PO:0006312 ! tassel pedicellate spikelet [Term] id: PO:0006389 name: rachilla of sessile spikelet of tassel namespace: plant_structure def: "The axis of the tassel sessile spikelet, above the glumes." [GR:pj] is_a: PO:0006379 ! tassel spikelet rachilla relationship: part_of PO:0006311 ! tassel sessile spikelet relationship: part_of PO:0006349 ! ear sessile spikelet [Term] id: PO:0006390 name: rachilla of pedicellate spikelet of tassel namespace: plant_structure def: "The axis of the tassel pedicellate spikelet, above the glumes." [GR:pj] is_a: PO:0006379 ! tassel spikelet rachilla relationship: part_of PO:0006312 ! tassel pedicellate spikelet [Term] id: PO:0006391 name: gynoecium of lower floret of sessile spikelet of tassel namespace: plant_structure def: "Collectively the carpels of a lower floret of sessile spikelet of maize tassel." [GR:pj] comment: A non-functional or rudimentary gynoecium. is_a: PO:0006317 ! gynoecium of tassel floret relationship: part_of PO:0006315 ! lower floret of sessile spikelet of tassel [Term] id: PO:0006392 name: androecium of upper floret of sessile spikelet of tassel namespace: plant_structure def: "Collectively the stamens of upper floret of a sessile spikelet of tassel inflorescence of maize." [GR:pj] is_a: PO:0006366 ! androecium of tassel floret relationship: part_of PO:0006316 ! upper floret of sessile spikelet of tassel [Term] id: PO:0006393 name: androecium of lower floret of sessile spikelet of tassel namespace: plant_structure def: "Collectively the stamens of lower floret of a sessile spikelet of tassel inflorescence of maize." [GR:pj] is_a: PO:0006366 ! androecium of tassel floret relationship: part_of PO:0006315 ! lower floret of sessile spikelet of tassel [Term] id: PO:0006394 name: gynoecium of upper floret of sessile spikelet of tassel namespace: plant_structure def: "Collectively the carpels of a upper floret of sessile spikelet of maize tassel." [GR:pj] comment: A non-functional or rudimentary gynoecium. is_a: PO:0006317 ! gynoecium of tassel floret relationship: part_of PO:0006316 ! upper floret of sessile spikelet of tassel [Term] id: PO:0006395 name: lemma of upper floret of sessile spikelet of tassel namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize tassel sessile spikelet upper floret." [GR:pj] is_a: PO:0006356 ! lemma of tassel floret relationship: part_of PO:0006316 ! upper floret of sessile spikelet of tassel [Term] id: PO:0006397 name: lemma of lower floret of sessile spikelet of tassel namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize tassel sessile spikelet lower floret." [GR:pj] is_a: PO:0006356 ! lemma of tassel floret relationship: part_of PO:0006315 ! lower floret of sessile spikelet of tassel [Term] id: PO:0006399 name: palea of lower floret of sessile spikelet of tassel namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize tassel sessile spikelet lower floret." [GR:pj] is_a: PO:0006359 ! palea of tassel floret relationship: part_of PO:0006315 ! lower floret of sessile spikelet of tassel [Term] id: PO:0006401 name: palea of upper floret of sessile spikelet of tassel namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize tassel sessile spikelet upper floret." [GR:pj] is_a: PO:0006359 ! palea of tassel floret relationship: part_of PO:0006316 ! upper floret of sessile spikelet of tassel [Term] id: PO:0006403 name: gynoecium of lower floret of pedicellate spikelet of tassel namespace: plant_structure def: "Collectively the carpels of a lower floret of pedicellate spikelet of maize tassel." [GR:pj] comment: A non-functional or rudimentary gynoecium. is_a: PO:0006317 ! gynoecium of tassel floret relationship: part_of PO:0006313 ! lower floret of pedicellate spikelet of tassel [Term] id: PO:0006404 name: gynoecium of upper floret of pedicellate spikelet of tassel namespace: plant_structure def: "Collectively the carpels of a upper floret of pedicellate spikelet of maize tassel." [GR:pj] comment: A non-functional or rudimentary gynoecium. is_a: PO:0006317 ! gynoecium of tassel floret relationship: part_of PO:0006314 ! upper floret of pedicellate spikelet of tassel [Term] id: PO:0006405 name: androecium of upper floret of pedicellate spikelet of tassel namespace: plant_structure def: "Collectively the stamens of upper floret of a pedicellate spikelet of tassel inflorescence of maize." [GR:pj] comment: This constitutes a functional androecium. is_a: PO:0006366 ! androecium of tassel floret relationship: part_of PO:0006314 ! upper floret of pedicellate spikelet of tassel [Term] id: PO:0006406 name: androecium of lower floret of pedicellate spikelet of tassel namespace: plant_structure def: "Collectively the stamens of lower floret of a pedicellate spikelet of tassel inflorescence of maize." [GR:pj] comment: This constitutes a functional androecium. is_a: PO:0006366 ! androecium of tassel floret relationship: part_of PO:0006313 ! lower floret of pedicellate spikelet of tassel [Term] id: PO:0006407 name: lemma of lower floret of pedicellate spikelet of tassel namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize tassel pedicellate spikelet lower floret." [GR:pj] is_a: PO:0006356 ! lemma of tassel floret relationship: part_of PO:0006313 ! lower floret of pedicellate spikelet of tassel [Term] id: PO:0006409 name: lemma of upper floret of pedicellate spikelet of tassel namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize tassel pedicellate spikelet upper floret." [GR:pj] is_a: PO:0006356 ! lemma of tassel floret relationship: part_of PO:0006314 ! upper floret of pedicellate spikelet of tassel [Term] id: PO:0006411 name: palea of lower floret of pedicellate spikelet of tassel namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize tassel pedicellate spikelet lower floret." [GR:pj] is_a: PO:0006359 ! palea of tassel floret relationship: part_of PO:0006313 ! lower floret of pedicellate spikelet of tassel [Term] id: PO:0006413 name: palea of upper floret of pedicellate spikelet of tassel namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize tassel pedicellate spikelet upper floret." [GR:pj] is_a: PO:0006359 ! palea of tassel floret relationship: part_of PO:0006314 ! upper floret of pedicellate spikelet of tassel [Term] id: PO:0006415 name: pedicel of ear spikelet namespace: plant_structure def: "This is the ultimate branch of the pedicellate ear spikelet." [GR:pj] is_a: PO:0006319 ! spikelet pedicel relationship: part_of PO:0006348 ! ear pedicellate spikelet [Term] id: PO:0006416 name: pedicel of tassel spikelet namespace: plant_structure def: "This is the ultimate branch of the pedicellate tassel spikelet." [GR:pj] is_a: PO:0006319 ! spikelet pedicel relationship: part_of PO:0006312 ! tassel pedicellate spikelet [Term] id: PO:0006417 name: tassel peduncle namespace: plant_structure def: "The axis of a maize tassel below the lowest tassel node." [GR:pj] is_a: PO:0009053 ! peduncle relationship: part_of PO:0020126 ! tassel [Term] id: PO:0006418 name: ear peduncle namespace: plant_structure def: "The stalk of a maize ear below the lowest ear node." [GR:pj] synonym: "shank" RELATED [] synonym: "Zea lateral branch" RELATED [] is_a: PO:0009053 ! peduncle relationship: part_of PO:0020136 ! Zea ear [Term] id: PO:0006419 name: androecium of lower floret of pedicellate spikelet of ear namespace: plant_structure def: "Collectively the stamens of lower floret of a pedicellate spikelet of maize ear inflorescence." [GR:pj] comment: The development of the androecium in the ear floret of a normal maize plant is aborted and is present in a rudimentary state. is_a: PO:0006355 ! androecium of ear floret relationship: part_of PO:0006353 ! lower floret of pedicellate spikelet of ear [Term] id: PO:0006420 name: androecium of lower floret of sessile spikelet of ear namespace: plant_structure def: "Collectively the stamens of lower floret of a sessile spikelet of maize ear inflorescence." [GR:pj] comment: The development of the androecium in the ear floret of a normal maize plant is aborted and is present in a rudimentary state. is_a: PO:0006355 ! androecium of ear floret relationship: part_of PO:0006351 ! lower floret of sessile spikelet of ear [Term] id: PO:0006421 name: androecium of upper floret of sessile spikelet of ear namespace: plant_structure def: "Collectively the stamens of upper floret of a sessile spikelet of maize ear inflorescence." [GR:pj] comment: The development of the androecium in the ear floret of a normal maize plant is aborted and is present in a rudimentary state. is_a: PO:0006355 ! androecium of ear floret relationship: part_of PO:0006352 ! upper floret of sessile spikelet of ear [Term] id: PO:0006422 name: androecium of upper floret of pedicellate spikelet of ear namespace: plant_structure def: "Collectively the stamens of upper floret of a pedicellate spikelet of maize ear inflorescence." [GR:pj] comment: The development of the androecium in the ear floret of a normal maize plant is aborted and is present in a rudimentary state. is_a: PO:0006355 ! androecium of ear floret relationship: part_of PO:0006350 ! upper floret of pedicellate spikelet of ear [Term] id: PO:0006423 name: gynoecium of lower floret of sessile spikelet of ear namespace: plant_structure def: "Collectively the carpels of a lower floret of sessile spikelet of maize ear." [GR:pj] comment: A non-functional or rudimentary gynoecium. is_a: PO:0006365 ! gynoecium of ear floret relationship: part_of PO:0006351 ! lower floret of sessile spikelet of ear [Term] id: PO:0006424 name: gynoecium of lower floret of pedicellate spikelet of ear namespace: plant_structure def: "Collectively the carpels of a lower floret of pedicellate spikelet of a maize ear." [GR:pj] comment: A non-functional or rudimentary gynoecium. is_a: PO:0006365 ! gynoecium of ear floret relationship: part_of PO:0006353 ! lower floret of pedicellate spikelet of ear [Term] id: PO:0006425 name: gynoecium of upper floret of sessile spikelet of ear namespace: plant_structure def: "Collectively the carpels of a upper floret of sessile spikelet of maize ear." [GR:pj] comment: A functional gynoecium. is_a: PO:0006365 ! gynoecium of ear floret relationship: part_of PO:0006352 ! upper floret of sessile spikelet of ear [Term] id: PO:0006426 name: gynoecium of upper floret of pedicellate spikelet of ear namespace: plant_structure def: "Collectively the carpels of a upper floret of pedicellate spikelet of maize ear." [GR:pj] comment: A functional gynoecium. is_a: PO:0006365 ! gynoecium of ear floret relationship: part_of PO:0006350 ! upper floret of pedicellate spikelet of ear [Term] id: PO:0006427 name: palea of upper floret of sessile spikelet of ear namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize ear sessile spikelet upper floret." [GR:pj] is_a: PO:0006361 ! palea of ear floret relationship: part_of PO:0006352 ! upper floret of sessile spikelet of ear [Term] id: PO:0006428 name: palea of lower floret of sessile spikelet of ear namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize ear sessile spikelet lower floret." [GR:pj] is_a: PO:0006361 ! palea of ear floret relationship: part_of PO:0006351 ! lower floret of sessile spikelet of ear [Term] id: PO:0006429 name: palea of upper floret of pedicellate spikelet of ear namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize ear pedicellate spikelet upper floret." [GR:pj] is_a: PO:0006361 ! palea of ear floret relationship: part_of PO:0006350 ! upper floret of pedicellate spikelet of ear [Term] id: PO:0006430 name: palea of lower floret of pedicellate spikelet of ear namespace: plant_structure def: "The upper of the two bracts enclosing a flower in a maize ear pedicellate spikelet lower floret." [GR:pj] is_a: PO:0006361 ! palea of ear floret relationship: part_of PO:0006353 ! lower floret of pedicellate spikelet of ear [Term] id: PO:0006431 name: lemma of lower floret of pedicellate spikelet of ear namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize ear pedicellate spikelet lower floret." [GR:pj] is_a: PO:0006363 ! lemma of ear floret relationship: part_of PO:0006353 ! lower floret of pedicellate spikelet of ear [Term] id: PO:0006432 name: lemma of upper floret of pedicellate spikelet of ear namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize ear pedicellate spikelet upper floret." [GR:pj] is_a: PO:0006363 ! lemma of ear floret relationship: part_of PO:0006350 ! upper floret of pedicellate spikelet of ear [Term] id: PO:0006433 name: lemma of lower floret of sessile spikelet of ear namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize ear sessile spikelet lower floret." [GR:pj] is_a: PO:0006363 ! lemma of ear floret relationship: part_of PO:0006351 ! lower floret of sessile spikelet of ear [Term] id: PO:0006434 name: lemma of upper floret of sessile spikelet of ear namespace: plant_structure def: "The lower of the two bracts enclosing a flower in a maize ear sessile spikelet upper floret." [GR:pj] is_a: PO:0006363 ! lemma of ear floret relationship: part_of PO:0006352 ! upper floret of sessile spikelet of ear [Term] id: PO:0006435 name: rachilla of pedicellate spikelet of ear namespace: plant_structure def: "The axis of the ear pedicellate spikelet, above the glumes." [GR:pj] is_a: PO:0006380 ! ear spikelet rachilla relationship: part_of PO:0006348 ! ear pedicellate spikelet [Term] id: PO:0006436 name: rachilla of sessile spikelet of ear namespace: plant_structure def: "The axis of the ear sessile spikelet, above the glumes." [GR:pj] is_a: PO:0006380 ! ear spikelet rachilla [Term] id: PO:0006437 name: lower glume of pedicellate spikelet of ear namespace: plant_structure def: "The proximal/basal of the two glumes in the ear pedicellate spikelet." [GR:pj] is_a: PO:0006369 ! lower glume of ear spikelet relationship: part_of PO:0006348 ! ear pedicellate spikelet [Term] id: PO:0006438 name: lower glume of sessile spikelet of ear namespace: plant_structure def: "The proximal/basal of the two glumes in the ear sessile spikelet." [GR:pj] is_a: PO:0006369 ! lower glume of ear spikelet relationship: part_of PO:0006349 ! ear sessile spikelet [Term] id: PO:0006439 name: upper glume of pedicellate spikelet of ear namespace: plant_structure def: "The apical/distal of the two glumes in the pedicellate spikelet." [GR:pj] is_a: PO:0006371 ! upper glume of ear spikelet relationship: part_of PO:0006348 ! ear pedicellate spikelet [Term] id: PO:0006440 name: upper glume of sessile spikelet of ear namespace: plant_structure def: "The apical/distal of the two glumes in the sessile spikelet." [GR:pj] is_a: PO:0006371 ! upper glume of ear spikelet relationship: part_of PO:0006349 ! ear sessile spikelet [Term] id: PO:0006441 name: Poaceae stamen namespace: plant_structure def: "A microsporophyll, bearing four microsporangia in a grass floret." [GR:pj] is_a: PO:0009029 ! stamen relationship: part_of PO:0006383 ! Poaceae androecium [Term] id: PO:0006442 name: Poaceae anther namespace: plant_structure def: "The pollen-bearing part of a stamen of a grass floret." [GR:pj] is_a: PO:0009066 ! anther relationship: part_of PO:0006441 ! Poaceae stamen [Term] id: PO:0006443 name: Poaceae connective namespace: plant_structure def: "The part of the stamen of a grass floret, that connects the microsporangia/pollen sacs." [GR:pj] is_a: PO:0009068 ! connective relationship: part_of PO:0006442 ! Poaceae anther [Term] id: PO:0006444 name: Poaceae microsporangium namespace: plant_structure def: "Sporangium in the anther of a grass stamen producing microspores, usually many in number." [GR:pj] is_a: PO:0009070 ! pollen sac relationship: part_of PO:0006442 ! Poaceae anther [Term] id: PO:0006445 name: Poaceae anther wall namespace: plant_structure def: "A multicellular layer with outer epidermis and an inner endothecium of an anther of a grass stamen." [GR:pj] is_a: PO:0000002 ! anther wall relationship: part_of PO:0006444 ! Poaceae microsporangium [Term] id: PO:0006446 name: Poaceae endothecium namespace: plant_structure def: "The hypodermis of an anther sac of a grass stamen with distinctively thickened walls and involved in its dehiscence." [GR:pj] is_a: PO:0020002 ! endothecium relationship: part_of PO:0006445 ! Poaceae anther wall [Term] id: PO:0006447 name: Poaceae exothecium namespace: plant_structure def: "The epidermis of an anther sac of a grass stamen." [GR:pj] is_a: PO:0020004 ! exothecium relationship: part_of PO:0006445 ! Poaceae anther wall [Term] id: PO:0006448 name: Poaceae placentoid namespace: plant_structure def: "An inpushing of the anther wall of a grass stamen." [GR:pj] is_a: PO:0020005 ! placentoid relationship: part_of PO:0006445 ! Poaceae anther wall [Term] id: PO:0006449 name: Poaceae stomium namespace: plant_structure def: "A stomium that is part of an anther wall (sensu Poaceae)." [POC:rw] is_a: PO:0020101 ! stomium relationship: part_of PO:0006445 ! Poaceae anther wall [Term] id: PO:0006450 name: Poaceae tapetum namespace: plant_structure def: "Innermost part of the anther wall, involved in the nutrition of the pollen in grasses." [GR:pj] is_a: PO:0009071 ! tapetum relationship: part_of PO:0006445 ! Poaceae anther wall [Term] id: PO:0006451 name: Poaceae microsporocyte namespace: plant_structure def: "A diploid (2n) cell that undergoes meiosis and produces four haploid (1n) microspores in a grass plant." [GR:pj] is_a: PO:0020047 ! microsporocyte relationship: part_of PO:0006444 ! Poaceae microsporangium [Term] id: PO:0006452 name: Poaceae microspore namespace: plant_structure def: "The smaller, in general, of the two kinds of spores produced in the life cycle of a grass plant. It gives rise to the male gametophyte." [GR:pj] is_a: PO:0020048 ! microspore relationship: develops_from PO:0006451 ! Poaceae microsporocyte [Term] id: PO:0006453 name: Poaceae theca namespace: plant_structure def: "A part of the anther of a grass stamen consisting of paired sporangia that dehisce down a common slit." [GR:pj] is_a: PO:0006444 ! Poaceae microsporangium is_a: PO:0009069 ! theca [Term] id: PO:0006454 name: Poaceae filament namespace: plant_structure def: "The stalk of the stamen of a grass floret." [GR:pj] is_a: PO:0009067 ! filament relationship: part_of PO:0006441 ! Poaceae stamen [Term] id: PO:0006455 name: Poaceae carpel namespace: plant_structure def: "A megasporophyll at the center of a grass floret enclosing the ovule." [GR:pj] is_a: PO:0009030 ! carpel relationship: part_of PO:0006384 ! Poaceae gynoecium [Term] id: PO:0006456 name: Poaceae ovary namespace: plant_structure def: "The basal portion of a carpel that encloses the ovule(s) in a grass floret." [GR:pj] is_a: PO:0009072 ! ovary relationship: part_of PO:0006455 ! Poaceae carpel [Term] id: PO:0006457 name: Poaceae ovule namespace: plant_structure def: "A stalked or sessile structure in a grass carpel within which one or more megaspores are formed and later the female gametophyte or embryo sac develops." [GR:pj] is_a: PO:0020003 ! ovule relationship: part_of PO:0006456 ! Poaceae ovary [Term] id: PO:0006458 name: Poaceae chalaza namespace: plant_structure def: "Region in the grass ovule where the integuments and the nucellus merge with the funiculus." [GR:pj] is_a: PO:0020026 ! chalaza relationship: part_of PO:0006457 ! Poaceae ovule [Term] id: PO:0006459 name: Poaceae outer integumet namespace: plant_structure def: "One of the two layers of tissue that usually covers the ovule of a grass, contiguous to the inner integument and usually involved in forming the micropyle at the apex." [GR:pj] is_a: PO:0020023 ! outer integument relationship: part_of PO:0006465 ! Poaceae integument [Term] id: PO:0006460 name: Poaceae inner integument namespace: plant_structure def: "The innermost of the two layers of tissue that cover the ovule of a grass, contiguous to the nucellus and usually involved in forming the micropyle at the apex." [GR:pj] is_a: PO:0020022 ! inner integument relationship: part_of PO:0006465 ! Poaceae integument [Term] id: PO:0006461 name: Poaceae micropyle namespace: plant_structure def: "A micropyle at the apex of a grass ovule." [GR:pj] is_a: PO:0020025 ! micropyle relationship: part_of PO:0006457 ! Poaceae ovule [Term] id: PO:0006462 name: Poaceae nucellus namespace: plant_structure def: "Subepidermal tissue in the ovule of a grass plant surrounding the megasporocyte." [GR:pj] is_a: PO:0020020 ! nucellus relationship: part_of PO:0006457 ! Poaceae ovule [Term] id: PO:0006463 name: Poaceae megasporocyte namespace: plant_structure def: "A diploid (2n) cell that undergoes meiosis and produces four haploid (1n) megaspores in a grass plant." [GR:pj] is_a: PO:0000431 ! megasporocyte relationship: part_of PO:0006462 ! Poaceae nucellus [Term] id: PO:0006464 name: Poaceae megaspore namespace: plant_structure def: "The larger, in general, of the two kinds of spores produced after meiosis in the life cycle of a grass plant, and on germination giving rise to the female gametophyte (embryo sac)." [GR:pj] is_a: PO:0020019 ! megaspore relationship: develops_from PO:0006463 ! Poaceae megasporocyte [Term] id: PO:0006465 name: Poaceae integument namespace: plant_structure def: "One of the layers of tissue that covers the ovule of a grass carpel, enveloping the nucellus and forming the micropyle at the apex." [GR:pj] is_a: PO:0020021 ! integument relationship: part_of PO:0006457 ! Poaceae ovule [Term] id: PO:0006466 name: Poaceae funicle namespace: plant_structure def: "A stalk that attaches an ovule to a placenta in a grass carpel." [GR:pj] is_a: PO:0020006 ! funicle relationship: part_of PO:0006456 ! Poaceae ovary [Term] id: PO:0006467 name: Poaceae ovary placenta namespace: plant_structure def: "The region within an ovary to which ovules are attached in a grass carpel." [GR:pj] is_a: PO:0020001 ! ovary placenta relationship: part_of PO:0006456 ! Poaceae ovary [Term] id: PO:0006468 name: Poaceae stigma namespace: plant_structure def: "The apical part of a carpel of a grass floret on which the pollen germinates." [GR:pj] is_a: PO:0009073 ! stigma relationship: part_of PO:0006455 ! Poaceae carpel [Term] id: PO:0006469 name: Poaceae style namespace: plant_structure def: "An elongated part of a carpel between the ovary and the stigma of a grass floret, through which the pollen tube grows." [GR:pj] is_a: PO:0009074 ! style relationship: part_of PO:0006455 ! Poaceae carpel [Term] id: PO:0006470 name: Zea carpel namespace: plant_structure def: "A megasporophyll at the center of a maize floret enclosing the ovule." [GR:pj] is_a: PO:0006455 ! Poaceae carpel relationship: part_of PO:0006365 ! gynoecium of ear floret [Term] id: PO:0006471 name: Zea androecium namespace: plant_structure def: "Collectively the stamens of one floret of a maize plant." [GR:pj] is_a: PO:0006383 ! Poaceae androecium [Term] id: PO:0006472 name: Zea stamen namespace: plant_structure def: "A microsporophyll bearing four microsporangia in a maize floret." [GR:pj] is_a: PO:0006441 ! Poaceae stamen relationship: part_of PO:0006366 ! androecium of tassel floret [Term] id: PO:0006473 name: Zea anther namespace: plant_structure def: "The pollen-bearing part of a stamen of a maize floret." [GR:pj] is_a: PO:0006442 ! Poaceae anther relationship: part_of PO:0006472 ! Zea stamen [Term] id: PO:0006474 name: Zea filament namespace: plant_structure def: "The stalk of the stamen of a maize floret." [GR:pj] is_a: PO:0006454 ! Poaceae filament relationship: part_of PO:0006472 ! Zea stamen [Term] id: PO:0006475 name: Zea connective namespace: plant_structure def: "The part of the stamen of a maize floret, that connects the microsporangia or pollen sacs." [GR:pj] is_a: PO:0006443 ! Poaceae connective relationship: part_of PO:0006473 ! Zea anther [Term] id: PO:0006476 name: Zea microsporangium namespace: plant_structure def: "Sporangium in the anther of a maize stamen producing microspores, usually many in number ." [GR:pj] is_a: PO:0006444 ! Poaceae microsporangium relationship: part_of PO:0006473 ! Zea anther [Term] id: PO:0006477 name: Zea anther wall namespace: plant_structure def: "A multicellular layer with outer epidermis and an inner endothecium of an anther of a maize stamen." [GR:pj] is_a: PO:0006445 ! Poaceae anther wall relationship: part_of PO:0006476 ! Zea microsporangium [Term] id: PO:0006478 name: Zea theca namespace: plant_structure def: "A part of the anther of a maize stamen consisting of paired sporangia that dehisce down a common slit." [GR:pj] is_a: PO:0006453 ! Poaceae theca is_a: PO:0006476 ! Zea microsporangium [Term] id: PO:0006479 name: Zea microsporocyte namespace: plant_structure def: "A diploid (2n) cell that undergoes meiosis and produces four haploid (1n) microspores in a maize plant." [GR:pj] is_a: PO:0006451 ! Poaceae microsporocyte relationship: part_of PO:0006476 ! Zea microsporangium [Term] id: PO:0006480 name: Zea microspore namespace: plant_structure def: "The smaller, in general, of the two kinds of spores produced in the life cycle of a maize plant. It gives rise to the male gametophyte." [GR:pj] is_a: PO:0006452 ! Poaceae microspore relationship: develops_from PO:0006479 ! Zea microsporocyte [Term] id: PO:0006481 name: Zea endothecium namespace: plant_structure def: "The hypodermis of an anther sac of a maize stamen with distinctively thickened walls and involved in its dehiscence." [GR:pj] is_a: PO:0006446 ! Poaceae endothecium relationship: part_of PO:0006477 ! Zea anther wall [Term] id: PO:0006482 name: Zea exothecium namespace: plant_structure def: "The epidermis of an anther sac of a maize stamen." [GR:pj] is_a: PO:0006447 ! Poaceae exothecium relationship: part_of PO:0006477 ! Zea anther wall [Term] id: PO:0006483 name: Zea placentoid namespace: plant_structure def: "An inpushing of the anther wall of a maize stamen." [GR:pj] is_a: PO:0006448 ! Poaceae placentoid relationship: part_of PO:0006477 ! Zea anther wall [Term] id: PO:0006484 name: Zea tapetum namespace: plant_structure def: "Innermost part of the anther wall, involved in the nutrition of the pollen in maize." [GR:pj] is_a: PO:0006450 ! Poaceae tapetum relationship: part_of PO:0006477 ! Zea anther wall [Term] id: PO:0006485 name: Zea stomium namespace: plant_structure def: "A stomium that is part of an anther wall (sensu Zea)." [POC:rw] subset: Maize is_a: PO:0006449 ! Poaceae stomium relationship: part_of PO:0006477 ! Zea anther wall [Term] id: PO:0006486 name: Zea ovary namespace: plant_structure def: "The basal portion of a carpel that encloses the ovule(s) in a maize floret." [GR:pj] is_a: PO:0006456 ! Poaceae ovary relationship: part_of PO:0006470 ! Zea carpel [Term] id: PO:0006487 name: Zea stigma namespace: plant_structure def: "The apical part of a carpel of a maize floret on which the pollen germinates." [GR:pj] is_a: PO:0006468 ! Poaceae stigma relationship: part_of PO:0006470 ! Zea carpel [Term] id: PO:0006488 name: silk namespace: plant_structure def: "The style of a maize floret." [GR:pj] synonym: "Zea style" RELATED [] is_a: PO:0006469 ! Poaceae style relationship: part_of PO:0006470 ! Zea carpel [Term] id: PO:0006489 name: Zea funicle namespace: plant_structure def: "A stalk that attaches an ovule to a placenta in a maize carpel." [GR:pj] is_a: PO:0006466 ! Poaceae funicle relationship: part_of PO:0006486 ! Zea ovary [Term] id: PO:0006490 name: Zea ovary placenta namespace: plant_structure def: "The region within an ovary to which ovules are attached in a maize carpel." [GR:pj] is_a: PO:0006467 ! Poaceae ovary placenta relationship: part_of PO:0006486 ! Zea ovary [Term] id: PO:0006491 name: Zea ovule namespace: plant_structure def: "A stalked or sessile structure in a maize carpel within which one or more megaspores are formed and later the female gametophyte or embryo sac develops." [GR:pj] is_a: PO:0006457 ! Poaceae ovule relationship: part_of PO:0006486 ! Zea ovary [Term] id: PO:0006492 name: Zea nucellus namespace: plant_structure def: "Subepidermal tissue in the ovule of a maize plant surrounding the megasporocyte." [GR:pj] is_a: PO:0006462 ! Poaceae nucellus relationship: part_of PO:0006491 ! Zea ovule [Term] id: PO:0006493 name: Zea megasporocyte namespace: plant_structure def: "A diploid (2n) cell that undergoes meiosis and produces four haploid (1n) megaspores in a maize plant." [GR:pj] is_a: PO:0006463 ! Poaceae megasporocyte relationship: part_of PO:0006492 ! Zea nucellus [Term] id: PO:0006494 name: Zea megaspore namespace: plant_structure def: "The larger, in general, of the two kinds of spores produced after meiosis in the life cycle of a maize plant, and on germination giving rise to the female gametophyte (embryo sac)." [GR:pj] is_a: PO:0006464 ! Poaceae megaspore relationship: develops_from PO:0006493 ! Zea megasporocyte [Term] id: PO:0006495 name: Poaceae degenerate megaspore namespace: plant_structure def: "The megaspores in a grass plant that would not participate in megagametogenesis." [GR:pj] is_a: PO:0000245 ! degenerate megaspore is_a: PO:0006464 ! Poaceae megaspore [Term] id: PO:0006496 name: Poaceae functional megaspore namespace: plant_structure def: "The megaspore that forms the embryo sac in grasses." [GR:pj] is_a: PO:0000244 ! functional megaspore is_a: PO:0006464 ! Poaceae megaspore [Term] id: PO:0006497 name: Poaceae stigma epidermis namespace: plant_structure def: "The epidermal cell layer of the grass stigma." [GR:pj] is_a: PO:0006061 ! stigma epidermis relationship: part_of PO:0006468 ! Poaceae stigma [Term] id: PO:0006498 name: Poaceae style epidermis namespace: plant_structure def: "The epidermal cell layer of the style of a grass carpel." [GR:pj] is_a: PO:0006062 ! style epidermis relationship: part_of PO:0006469 ! Poaceae style [Term] id: PO:0006499 name: Poaceae transmitting tissue namespace: plant_structure def: "Tissue in the style of a grass carpel, through which the pollen tube grows; it connects the stigma and the inside of ovary." [GR:pj] is_a: PO:0020102 ! portion of transmitting tissue relationship: part_of PO:0006469 ! Poaceae style [Term] id: PO:0006500 name: Poaceae ovary epidermis namespace: plant_structure def: "The epidermal cell layer of the ovary of a grass carpel." [GR:pj] is_a: PO:0006063 ! ovary epidermis relationship: part_of PO:0006456 ! Poaceae ovary [Term] id: PO:0006501 name: leaf abscission zone namespace: plant_structure def: "Zone at base of the leaf that contains an abscission (or separation) layer and a protective layer, both involved in the abscission of the leaf." [GR:pj] is_a: PO:0000146 ! abscission zone relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0006502 name: flower abscission zone namespace: plant_structure def: "Zone at base of the flower that contains an abscission (or separation) layer and a protective layer, both involved in the abscission of the flower and its parts." [GR:pj] is_a: PO:0000146 ! abscission zone relationship: part_of PO:0009046 ! flower [Term] id: PO:0006503 name: fruit abscission zone namespace: plant_structure def: "Zone at base of the fruit that contains an abscission (or separation) layer and a protective layer, both involved in the abscission of the fruit." [GR:pj] subset: Maize subset: Poaceae subset: Rice subset: Tomato is_a: PO:0000146 ! abscission zone relationship: part_of PO:0009001 ! fruit [Term] id: PO:0006504 name: leaf trichome namespace: plant_structure def: "A phyllome trichome that is part of a leaf epidermis." [POC:rw] subset: TraitNet is_a: PO:0025186 ! phyllome trichome relationship: part_of PO:0006016 ! leaf epidermis [Term] id: PO:0006505 name: central spike of ear namespace: plant_structure def: "A first order inflorescence axis that is the central axis of an ear." [POC:rw] comment: Zea cob is different from the cob inflorescence found in Sorghum. synonym: "ear rachis" RELATED [] synonym: "Zea cob" RELATED [] is_a: PO:0025104 ! first order inflorescence axis relationship: part_of PO:0020136 ! Zea ear [Term] id: PO:0006506 name: Zea chalaza namespace: plant_structure def: "Region in the maize ovule where the integuments and the nucellus merge with the funiculus." [GR:pj] is_a: PO:0006458 ! Poaceae chalaza relationship: part_of PO:0006491 ! Zea ovule [Term] id: PO:0006507 name: Zea integument namespace: plant_structure def: "One of the layers of tissue that covers the ovule of a maize carpel, enveloping the nucellus and forming the micropyle at the apex." [GR:pj] is_a: PO:0006465 ! Poaceae integument relationship: part_of PO:0006491 ! Zea ovule [Term] id: PO:0006508 name: Poaceae integument epidermis namespace: plant_structure def: "The epidermis of an integument in a grass ovule." [GR:pj] is_a: PO:0006043 ! integument epidermis relationship: part_of PO:0006465 ! Poaceae integument [Term] id: PO:0007001 name: FR.01 early stage of fruit ripening namespace: plant_growth_and_development_stage def: "The early stage in fruit ripening." [GR:ap, ISBN:3826331524] synonym: "09-dough development" RELATED [GRO:0007110] synonym: "7 linear grain-filling in maize" RELATED [MaizeGDB:64632] synonym: "7.03-early dough in maize" RELATED [GRO:0007034] synonym: "7.3 early dough stage/embryo 3 in maize" RELATED [MaizeGDB:67374] synonym: "8.03 Early ripening in soybean" RELATED [SOY:0000086] synonym: "8.1-early dough stage in rice" RELATED [GRO:0007152] synonym: "9.01-early dough" RELATED [GRO:0007111] synonym: "9.01-early dough in barley" RELATED [GRO:0007111] synonym: "9.01-early dough in oat" RELATED [GRO:0007111] synonym: "9.01-early dough in wheat" RELATED [GRO:0007111] synonym: "BBCH principal growth stage 83" RELATED [ISBN:3826331524] synonym: "dough stage in maize" RELATED [MaizeGDB:67374] synonym: "early dough stage in maize" RELATED [MaizeGDB:67374] synonym: "early dough, kernel content soft, about 45% dry matter" RELATED [ISBN:3826331524] synonym: "embryo stage 3 in maize" RELATED [MaizeGDB:67374] synonym: "FR.01 early stage of fruit ripening in Solanaceae" RELATED [SGN:0000048] synonym: "R4 in maize" RELATED [MaizeGDB:67374] synonym: "rice growth stage-8.1" RELATED [GRO:0007152] synonym: "tomato turning stage" RELATED [SGN:0000048] is_a: PO:0007010 ! 6 ripening [Term] id: PO:0007002 name: IE.03 3/4 of inflorescence emerged from flag leaf sheath namespace: plant_growth_and_development_stage def: "The stage at which 3/4 of inflorescence has emerged from flag leaf sheath." [GR:ap] synonym: "6.04-3/4 of inflorescence emerged in barley" RELATED [GRO:0007099] synonym: "6.04-3/4 of inflorescence emerged in oat" RELATED [GRO:0007099] synonym: "6.04-3/4 of inflorescence emerged in wheat" RELATED [GRO:0007099] synonym: "70% of panicle emerged in rice" RELATED [] is_a: PO:0007041 ! inflorescence emergence from flag leaf sheath [Term] id: PO:0007003 name: IL.03 full inflorescence length reached namespace: plant_growth_and_development_stage def: "The stage when the inflorescence reaches full length." [GR:ap] synonym: "4.04 full inflorescence length reached in soybean" RELATED [SOY:0000070] is_a: PO:0007047 ! 3 inflorescence visible [Term] id: PO:0007004 name: 3 rapid growth stage namespace: plant_growth_and_development_stage def: "OBSOLETE.The stage at which the plant grows rapidly by either or both stem elongation and expansion of the rosette/foliage. " [GR:ap] comment: Many stages like leaf production PO:0007112, axillary shoot formation PO:0007073, inflorescence PO:0007047 often overlap with this stage is_obsolete: true [Term] id: PO:0007005 name: IL.02 1/2 inflorescence length reached namespace: plant_growth_and_development_stage def: "The stage when 1/2 Inflorescence is visible." [GR:ap] synonym: "4.03 1/2 of inflorescence length reached in soybean" RELATED [SOY:0000069] is_a: PO:0007047 ! 3 inflorescence visible [Term] id: PO:0007006 name: IL.00 inflorescence just visible namespace: plant_growth_and_development_stage def: "Inflorescence just visible to the naked eye." [Poc:curators] synonym: "4.01 Inflorescence just visible in soybean" RELATED [SOY:0000067] synonym: "visible flower buds in Arabidopsis" RELATED [TAIR:0000420] is_a: PO:0007047 ! 3 inflorescence visible [Term] id: PO:0007007 name: FF.03 fruit size 70% namespace: plant_growth_and_development_stage def: "The stage when the size of the fruit is about 70% of final fruit size." [GR:ap, ISBN:3826331524] synonym: "7.07 Pod 70% of final length in soybean" RELATED [SOY:0000082] synonym: "8.02-early milk in barley" RELATED [GRO:0007107] synonym: "8.02-early milk in oat" RELATED [GRO:0007107] synonym: "8.02-early milk in wheat" RELATED [GRO:0007107] synonym: "early milk stage" RELATED [GRO:0007107] synonym: "early milk stage in maize" RELATED [ISBN:3826331524] synonym: "FF.03 fruit size 70% in Solanaceae" RELATED [SGN:0000044] synonym: "late milk" RELATED [GRO:0007109] synonym: "tomato immature green" RELATED [SGN:0000044] synonym: "Zadok scale-73, Haun scale-13" RELATED [GRO:0007107] is_a: PO:0007042 ! 5 fruit formation [Term] id: PO:0007008 name: IE.02 1/2 of inflorescence emerged from flag leaf sheath namespace: plant_growth_and_development_stage def: "The stage at which 1/2 of inflorescence has emerged from flag leaf sheath." [GR:ap] synonym: "08-heading" RELATED [GRO:0007131] synonym: "6.03-1/2 of inflorescence emerged in barley" RELATED [GRO:0007098] synonym: "6.03-1/2 of inflorescence emerged in oat" RELATED [GRO:0007098] synonym: "6.03-1/2 of inflorescence emerged in wheat" RELATED [GRO:0007098] synonym: "first individual flowers visible" RELATED [] synonym: "half bloom" RELATED [GRO:0007131] synonym: "middle of heading" RELATED [] synonym: "middle of panicle emergence in rice" RELATED [] synonym: "sorghum growth stage-7" RELATED [GRO:0007131] is_a: PO:0007041 ! inflorescence emergence from flag leaf sheath [Term] id: PO:0007009 name: FF.01 fruit size 30% namespace: plant_growth_and_development_stage def: "The stage when the size of the fruit is about 30% of final fruit size." [GR:ap, ISBN:3826331524] synonym: "7.02 Pod 30% of final length in soybean" RELATED [SOY:0000080] synonym: "FF.01 fruit size 30% in Solanaceae" RELATED [SGN:0000042] synonym: "tomato immature green" RELATED [SGN:0000042] is_a: PO:0007042 ! 5 fruit formation [Term] id: PO:0007010 name: 6 ripening namespace: plant_growth_and_development_stage def: "Maturation of the fruit." [Poc:curators] comment: Although the use of stages like dough or particular ripening stages properly refer to the development of an individual fruit, they are commonly used as here to extrapolate to a growth of a whole plant or a group of plants. synonym: "08-dough stage in rice" RELATED [GRO:0007042] synonym: "09-dough development in barley" RELATED [GRO:0007110] synonym: "09-dough development in oat" RELATED [GRO:0007110] synonym: "09-dough development in wheat" RELATED [GRO:0007110] synonym: "10-dough stage in sorghum" RELATED [GRO:0007132] synonym: "6 ripening in Solanaceae" RELATED [SGN:0000046] synonym: "8 Bean Development in soybean" RELATED [SOY:0000078] synonym: "BBCH principal growth stage 8" RELATED [] synonym: "dough stage" RELATED [GRO:0007132] synonym: "dough stage in maize" RELATED [MaizeGDB:67379] synonym: "dough stage kernels yellowish, about 55% dry matter" RELATED [ISBN:3826331524] synonym: "fruit maturity" RELATED [] synonym: "fruit ripening" RELATED [] synonym: "kernel ripening" RELATED [] synonym: "maturity of fruit and seed" RELATED [] synonym: "rice growth stage-8" RELATED [] synonym: "silique ripening in Arabidopsis" RELATED [TAIR:0000034] is_a: PO:0007130 ! B reproductive growth [Term] id: PO:0007012 name: Poaceae inflorescence visible namespace: plant_growth_and_development_stage def: "The stage at which grass plant is producing inflorescence(s)." [Poc:curators] comment: There is no one-to-one correspondence between growth stages of inflorescences formation in members of Poaceae with that of other families. synonym: "BBCH principal growth stage 4" RELATED [ISBN:3826331524] is_a: PO:0007047 ! 3 inflorescence visible [Term] id: PO:0007013 name: BO.03 late boot stage namespace: plant_growth_and_development_stage def: "The flag leaf sheath swollen." [GR:ap, ISBN:3826331524] comment: In rice the flag leaf sheath is more than 10cm out of the penultimate leaf sheath. synonym: "5.2-late booting stage in rice" RELATED [GRO:0007150] synonym: "flag leaf sheath swollen" RELATED [] synonym: "rice growth stage-5.2" RELATED [GRO:0007150] is_a: PO:0007014 ! booting [Term] id: PO:0007014 name: booting namespace: plant_growth_and_development_stage def: "Stage characterized by a swelling of the flag leaf sheath, caused by an increase in the size of the inflorescence as it grows up the leaf sheath." [GR:pj] synonym: "05-booting in barley" RELATED [GRO:0007090] synonym: "05-booting in oat" RELATED [GRO:0007090] synonym: "05-booting in wheat" RELATED [GRO:0007090] synonym: "05-booting stage" RELATED [GRO:0007148] synonym: "07-boot stage in sorghum" RELATED [GRO:0007130] synonym: "BBCH growth stage 40" RELATED [ISBN:3826331524] synonym: "development of vegetatively propogated organs" RELATED [] synonym: "rice growth stage-5" RELATED [GRO:0007148] synonym: "sorghum growth stage-6" RELATED [GRO:0007130] is_a: PO:0007012 ! Poaceae inflorescence visible [Term] id: PO:0007015 name: radicle emergence namespace: plant_growth_and_development_stage alt_id: PO:0007507 def: "The stage at which the radicle or root emerges from seed." [GR:ap, ISBN:3826331524] synonym: "0.02-radicle emergence from seed in maize" RELATED [GRO:0007005] synonym: "0.2 radicle emergence from seed in maize" RELATED [MaizeGDB:67351] synonym: "05 radicle emergence from seed coat in soybean" RELATED [SOY:0000011] synonym: "1.04-radicle emerged from seed in barley" RELATED [GRO:0007055] synonym: "1.04-radicle emerged from seed in oat" RELATED [GRO:0007055] synonym: "1.04-radicle emerged from seed in Triticeae" RELATED [GRO:0007055] synonym: "1.04-radicle emerged from seed in wheat" RELATED [GRO:0007055] synonym: "BBCH growth stage 05" RELATED [ISBN:3826331524] synonym: "maize growth stage-0.2" RELATED [GRO:0007005] synonym: "radicle emergence" RELATED [] synonym: "radicle emergence in Arabidopsis" RELATED [TAIR:T0000395] synonym: "radicle emergence in Solanaceae" RELATED [SGN:0000006] synonym: "Zadok scale-5" RELATED [GRO:0007055] is_a: PO:0007510 ! root emergence relationship: part_of PO:0007131 ! seedling growth [Term] id: PO:0007016 name: 4 flowering namespace: plant_growth_and_development_stage def: "The stage at which any flower(s) on the plant are open." [Poc:curators] comment: This stage refers to the whole plant. synonym: "07-anthesis in barley" RELATED [GRO:0007101] synonym: "07-anthesis in oat" RELATED [GRO:0007101] synonym: "07-anthesis in wheat" RELATED [GRO:0007101] synonym: "09-flowering in sorghum" RELATED [GRO:0007153] synonym: "4 flowering in Solanaceae" RELATED [SGN:0000034] synonym: "5 flowering in maize" RELATED [MaizeGDB:13811] synonym: "5.01-anthesis in maize " RELATED [GRO:0007021] synonym: "5.02-silking in maize" RELATED [GRO:0007022] synonym: "5.1 anthesis in maize" RELATED [MaizeGDB:67361] synonym: "5.2 silking in maize" RELATED [MaizeGDB:67362] synonym: "6 Flowering in soybean" RELATED [SOY:0000006] synonym: "6.1-flowering stage in rice" RELATED [GRO:0007151] synonym: "anthesis in maize" RELATED [MaizeGDB:67361] synonym: "anthesis stage" RELATED [GRO:0007151] synonym: "BBCH principal growth stage 6" RELATED [ISBN:3826331524] synonym: "flowering in maize" RELATED [MaizeGDB:13811] synonym: "pollen shed in maize" RELATED [MaizeGDB:67361] synonym: "R1 in maize" RELATED [MaizeGDB:67362] synonym: "rice growth stage-6.1" RELATED [GRO:0007151] synonym: "silk emergence in maize" RELATED [MaizeGDB:67362] synonym: "sorghum growth stage 8" RELATED [GRO:0007153] synonym: "VT in maize" RELATED [MaizeGDB:67361] is_a: PO:0007130 ! B reproductive growth [Term] id: PO:0007017 name: C senescence namespace: plant_growth_and_development_stage def: "The processes that occur near the end of a plant's active life that are associated with the dismantling of cell components and membranes, loss of functional chloroplasts, and an overall decline in metabolism." [Poc:curators] synonym: "10.03-kernel loosening in daytime in barley" RELATED [GRO:0007117] synonym: "10.03-kernel loosening in daytime in oat" RELATED [GRO:0007117] synonym: "10.03-kernel loosening in daytime in Triticeae" RELATED [GRO:0007117] synonym: "10.03-kernel loosening in daytime in wheat" RELATED [GRO:0007117] synonym: "10.04-overripe, straw dead and collapsing in barley" RELATED [GRO:0007118] synonym: "10.04-overripe, straw dead and collapsing in oat" RELATED [GRO:0007118] synonym: "10.04-overripe, straw dead and collapsing in Triticeae" RELATED [GRO:0007118] synonym: "10.04-overripe, straw dead and collapsing in wheat" RELATED [GRO:0007118] synonym: "9 Senescence in soybean" RELATED [SOY:0000008] synonym: "BBCH principal growth stage 9" RELATED [ISBN:3826331524] synonym: "C senescence in Solanaceae" RELATED [SGN:0000052] synonym: "senescence in Arabidopsis" RELATED [TAIR:0000035] is_a: PO:0007033 ! whole plant growth stage [Term] id: PO:0007018 name: BO.01 early boot stage namespace: plant_growth_and_development_stage def: "The flag leaf sheath has started to extend." [GR:ap, ISBN:3826331524] comment: In rice the flag leaf sheath is 5cm out of the penultimate leaf sheath. Upper part of the stem is slightly thickened. synonym: "5.01-flag leaf sheath extending in barley" RELATED [GRO:0007091] synonym: "5.01-flag leaf sheath extending in oat" RELATED [GRO:0007091] synonym: "5.01-flag leaf sheath extending in wheat" RELATED [GRO:0007091] synonym: "5.1-early booting stage in rice" RELATED [GRO:0007149] synonym: "flag leaf sheath extending" RELATED [GRO:0007091] synonym: "rice growth stage-5.1" RELATED [GRO:0007149] is_a: PO:0007014 ! booting [Term] id: PO:0007019 name: BO.05 flag leaf sheath opened namespace: plant_growth_and_development_stage def: "The first awns are visible and the flag leaf sheath has opened." [GR:ap, ISBN:3826331524] comment: Awns will be visible only in those species and varieties where they are known to be present. synonym: "5.04-flag leaf sheath extending in barley" RELATED [GRO:0007094] synonym: "5.04-flag leaf sheath extending in oat" RELATED [GRO:0007094] synonym: "5.04-flag leaf sheath extending in wheat" RELATED [GRO:0007094] synonym: "first awns visible" RELATED [GRO:0007094] is_a: PO:0007014 ! booting [Term] id: PO:0007021 name: plant structure development stage namespace: plant_growth_and_development_stage def: "The succession of changes during the development of plant parts." [POC:curators] is_a: PO:0009012 ! plant growth and development stage [Term] id: PO:0007022 name: imbibition namespace: plant_growth_and_development_stage def: "Absorption of water by the seed." [GR:ap, ISBN:0306416875] synonym: "0.1 imbibition in maize" RELATED [MaizeGDB:64054] synonym: "01 Beginning of seed imbibition in soybean" RELATED [SOY:0000090] synonym: "03 Seed imbibition complete in soybean" RELATED [SOY:0000091] synonym: "1.02-start of imbibition in barley" RELATED [GRO:0007053] synonym: "1.02-start of imbibition in oat" RELATED [GRO:0007053] synonym: "1.02-start of imbibition in Triticeae" RELATED [GRO:0007053] synonym: "1.02-start of imbibition in wheat" RELATED [GRO:0007053] synonym: "1.03-imbibition complete in barley" RELATED [GRO:0007054] synonym: "1.03-imbibition complete in oat" RELATED [GRO:0007054] synonym: "1.03-imbibition complete in Tricticeae" RELATED [GRO:0007054] synonym: "1.03-imbibition complete in wheat" RELATED [GRO:0007054] synonym: "BBCH growth stage 01" RELATED [ISBN:3826331524] synonym: "imbibition in Arabidopsis" RELATED [TAIR:0000394] synonym: "imbibition in Solanaceae" RELATED [SGN:0000004] relationship: part_of PO:0007057 ! 0 germination [Term] id: PO:0007023 name: IE.04 inflorescence fully emerged from flag leaf sheath namespace: plant_growth_and_development_stage def: "The stage at which the inflorescence has fully emerged from the flag leaf sheath." [GR:ap] synonym: "6.05-emergence of inflorescence completed in barley" RELATED [GRO:0007100] synonym: "6.05-emergence of inflorescence completed in oat" RELATED [GRO:0007100] synonym: "6.05-emergence of inflorescence completed in wheat" RELATED [GRO:0007100] synonym: "end of panicle emergence in rice" RELATED [] is_a: PO:0007041 ! inflorescence emergence from flag leaf sheath [Term] id: PO:0007024 name: FL.04 end of flowering namespace: plant_growth_and_development_stage def: "The stage at which flowering is complete." [GR:ap] comment: This stage refers to the whole plant. synonym: "6.09 End of flowering in soybean" RELATED [SOY:0000076] synonym: "7.03-anthesis completed in barley" RELATED [GRO:0007104] synonym: "7.03-anthesis completed in oat" RELATED [GRO:0007104] synonym: "7.03-anthesis completed in wheat" RELATED [GRO:0007104] synonym: "anthesis completed" RELATED [] synonym: "FL.04 end of flowering in Solanaceae" RELATED [SGN:0000039] synonym: "flowering complete" RELATED [] synonym: "fruit set visible" RELATED [] synonym: "late reproductive" RELATED [] synonym: "Zadok scale-69, Haun scale-11.6" RELATED [GRO:0007104] is_a: PO:0007016 ! 4 flowering [Term] id: PO:0007025 name: IE.00 inflorescence tip just visible above flag leaf sheath namespace: plant_growth_and_development_stage def: "The stage at which the inflorescence tip is just visible above flag leaf sheath." [GR:ap] synonym: "6.01-first spikelet of inflorescence visible in barley" RELATED [GRO:0007096] synonym: "6.01-first spikelet of inflorescence visible in oat" RELATED [GRO:0007096] synonym: "6.01-first spikelet of inflorescence visible in wheat" RELATED [GRO:0007096] synonym: "beginning of heading" RELATED [] synonym: "beginning of panicle emergence in rice" RELATED [] synonym: "beginning of tassel emergence in maize" RELATED [] synonym: "first flower buds visible" RELATED [] synonym: "first spikelet visible" RELATED [GRO:0007096] synonym: "visible flower buds" RELATED [] synonym: "Zadok scale-50, Feekes scale-10.1, Haun scale-10.2" RELATED [GRO:0007096] is_a: PO:0007041 ! inflorescence emergence from flag leaf sheath [Term] id: PO:0007026 name: FL.00 first flower(s) open namespace: plant_growth_and_development_stage def: "The stage at which the first flower(s) open." [GR:pj] comment: These first flowers are not necessarily the oldest flowers in the inflorescence. In some cereal plants the flowering starts in the middle of the inflorescence. This stage refers to the whole plant. synonym: "6.00 1st flowers on main stem open in soybean" RELATED [SOY:0000072] synonym: "7.01-anthesis beginning in barley" RELATED [GRO:0007102] synonym: "7.01-anthesis beginning in oat" RELATED [GRO:0007102] synonym: "7.01-anthesis beginning in Triticeae" RELATED [GRO:0007102] synonym: "7.01-anthesis beginning in wheat" RELATED [GRO:0007102] synonym: "first open flower in Arabidopsis" RELATED [TAIR:0000421] synonym: "FL.00 first flower(s) open in Solanaceae" RELATED [SGN:0000035] synonym: "Stage R1 Open flower at any node on the main stem" RELATED [SOY:0000072] is_a: PO:0007016 ! 4 flowering [Term] id: PO:0007027 name: FF.04 final fruit size namespace: plant_growth_and_development_stage def: "The stage when the size of the fruit has reached the final fruit size." [GR:ap, ISBN:3826331524] synonym: "7.09 Pod full size in soybean" RELATED [SOY:0000084] synonym: "8.03-medium milk in barley" RELATED [GRO:0007108] synonym: "8.03-medium milk in oat" RELATED [GRO:0007108] synonym: "8.03-medium milk in wheat" RELATED [GRO:0007108] synonym: "8.04-late milk in barley" RELATED [GRO:0007109] synonym: "8.04-late milk in oat" RELATED [GRO:0007109] synonym: "BBCH principal growth stage 75" RELATED [ISBN:3826331524] synonym: "BBCH principal growth stage 79" RELATED [ISBN:3826331524] synonym: "FF.04 final fruit size in Solanaceae" RELATED [SGN:0000045] synonym: "kernel content milky, 40% dry matter" RELATED [ISBN:3826331524] synonym: "Kernels in middle of cob yellowish-white" RELATED [ISBN:3826331524] synonym: "nearly all kernels have reached final size" RELATED [ISBN:3826331524] synonym: "Stage R4 Full pod in soybean" RELATED [SOY:0000084] synonym: "tomato mature green" RELATED [SGN:0000045] is_a: PO:0007042 ! 5 fruit formation [Term] id: PO:0007028 name: BO.04 flag leaf sheath opening namespace: plant_growth_and_development_stage def: "The flag leaf sheath starts opening." [ISBN:3826331524] synonym: "5.03-flag leaf sheath extending in barley" RELATED [GRO:0007093] synonym: "5.03-flag leaf sheath extending in oat" RELATED [GRO:0007093] synonym: "5.03-flag leaf sheath extending in wheat" RELATED [GRO:0007093] synonym: "Zadok scale-47" RELATED [GRO:0007093] is_a: PO:0007014 ! booting [Term] id: PO:0007029 name: FF.02 fruit size 50% namespace: plant_growth_and_development_stage def: "The stage when the size of the fruit is about 50% of final fruit size." [GR:ap, ISBN:3826331524] synonym: "7.01-blister stage in maize" RELATED [GRO:0007030] synonym: "7.03 Pod 50% of final length in soybean" RELATED [SOY:0000081] synonym: "8.01-kernel watery ripe in barley" RELATED [GRO:0007106] synonym: "8.01-kernel watery ripe in oat" RELATED [GRO:0007106] synonym: "8.01-kernel watery ripe in wheat" RELATED [GRO:0007106] synonym: "BBCH principal growth stage 71" RELATED [ISBN:3826331524] synonym: "beginning of grain development, kernels at blister stage, 16% dry matter" RELATED [ISBN:3826331524] synonym: "blister stage in maize" RELATED [MaizeGDB:67372] synonym: "caryopsis watery ripe" RELATED [GRO:0007106] synonym: "FF.02 fruit size 50% in Solanaceae" RELATED [SGN:0000043] synonym: "kernel watery ripe" RELATED [GRO:0007106] synonym: "R2 in maize" RELATED [MaizeGDB:67372] synonym: "Stage R4 Full pod in soybean" RELATED [SOY:0000081] synonym: "tomato immature green" RELATED [SGN:0000043] synonym: "watery ripe" RELATED [GRO:0007106] synonym: "Zadok scale-71, Feekes scale-10.54, Haun scale-12.1" RELATED [GRO:0007106] is_a: PO:0007042 ! 5 fruit formation [Term] id: PO:0007030 name: shoot emergence namespace: plant_growth_and_development_stage def: "Shoot or leaf breaks through soil surface." [GR:ap, ISBN:3826331524] synonym: "07 shoot emergence in soybean" RELATED [SOY:0000012] synonym: "BBCH growth stage 09" RELATED [ISBN:3826331524] synonym: "shoot emergence in Solanaceae" RELATED [SGN:0000007] relationship: part_of PO:0007131 ! seedling growth [Term] id: PO:0007031 name: FR.02 mid stage of fruit ripening namespace: plant_growth_and_development_stage def: "The stage when fruit ripening is midway." [GR:ap, ISBN:3826331524] synonym: "10.01-soft dough in sorghum" RELATED [GRO:0007133] synonym: "7.4 late dough stage/embryo 4 in maize" RELATED [MaizeGDB:67379] synonym: "8.05 Mid ripening in soybean" RELATED [SOY:0000087] synonym: "9.02-soft dough in barley" RELATED [GRO:0007112] synonym: "9.02-soft dough in oat" RELATED [GRO:0007112] synonym: "9.02-soft dough in wheat" RELATED [GRO:0007112] synonym: "BBCH principal growth stage 85" RELATED [ISBN:3826331524] synonym: "DNA degradation (endosperm) in maize" RELATED [MaizeGDB:67373] synonym: "dough stage in maize" RELATED [MaizeGDB:67379] synonym: "embryo stage 4 in maize" RELATED [MaizeGDB:67379] synonym: "FR.02 mid stage of fruit ripening in Solanaceae" RELATED [SGN:0000049] synonym: "R3 in maize" RELATED [MaizeGDB:67373] synonym: "soft dough" RELATED [GRO:0007112] synonym: "Stage R6 Full seed in soybean" RELATED [SOY:0000087] synonym: "tomato orange fruit" RELATED [SGN:0000049] synonym: "Zadok scale-85, Feekes scale-11.2" RELATED [GRO:0007112] is_a: PO:0007010 ! 6 ripening [Term] id: PO:0007032 name: FF.00 fruit size 10% namespace: plant_growth_and_development_stage def: "The stage when the size of the fruit is about 10% of final fruit size." [GR:ap, ISBN:3826331524] synonym: "7.01 Pod 10% of final length in soybean" RELATED [SOY:0000079] synonym: "FF.00 fruit size 10% in Solanaceae" RELATED [SGN:0000041] synonym: "stage R3 in soybean" RELATED [SOY:0000079] synonym: "tomato immature green" RELATED [SGN:0000041] is_a: PO:0007042 ! 5 fruit formation [Term] id: PO:0007033 name: whole plant growth stage namespace: plant_growth_and_development_stage def: "The succession of changes during the growth of the whole plant." [GR:pj] subset: TraitNet synonym: "cereal plant ontology " RELATED [GRO:0080001] synonym: "maize growth stage" RELATED [GRO:0007002] synonym: "plant growth stage ontology" RELATED [GRO:0007199] synonym: "plant growth stages in Arabidopsis" RELATED [TAIR:0000021] synonym: "rice growth stage" RELATED [GRO:0007040] synonym: "Solanaceae whole plant growth stages" RELATED [SGN:0000001] synonym: "sorghum growth stage" RELATED [GRO:0007124] synonym: "wheat, barley and oat growth stage" RELATED [GRO:0007156] is_a: PO:0009012 ! plant growth and development stage [Term] id: PO:0007034 name: FL.01 1/4 of flowers open namespace: plant_growth_and_development_stage def: "The stage at which 1/4 of flowers open." [GR:ap] comment: This stage refers to the whole plant. synonym: "6.02 1/4 of flowers on the main stem open in soybean" RELATED [SOY:0000073] synonym: "FL.01 1/4 of flowers open in Solanaceae" RELATED [SGN:0000036] is_a: PO:0007016 ! 4 flowering [Term] id: PO:0007035 name: 7-8 fruit formation and maturation namespace: plant_growth_and_development_stage def: "OBSOLETE: This stage refers to the developmental and physiological changes that occur in the whole plant after fertilization and during fruit development, maturation, and provisioning. " [Poc:curators] comment: We have chosen to use fruit size as a marker of these physiological processes to represent the whole plant growth stage. synonym: "06-post-flowering in maize" RELATED [GRO:0007025] synonym: "5.3 pollination in maize" RELATED [MaizeGDB:67364] synonym: "5.4 fertilization in maize" RELATED [MaizeGDB:67365] synonym: "6 post-flowering/lag phase in maize" RELATED [MaizeGDB:67370] synonym: "7 linear grain-filling in maize" RELATED [MaizeGDB:64632] synonym: "7 Pod Formation in soybean" RELATED [SOY:0000077] synonym: "7-8 Fruit Formation and Maturation in soybean" RELATED [SOY:0000007] synonym: "7.01-blister stage in maize" RELATED [GRO:0007030] synonym: "BBCH principal growth stage 7" RELATED [ISBN:3826331524] synonym: "C-embryo stage in rice" RELATED [GRO:0007141] synonym: "double fertilization in maize" RELATED [MaizeGDB:67365] synonym: "effective filling period in maize" RELATED [MaizeGDB:64632] synonym: "first silique shattered" RELATED [] synonym: "grain-filling in maize" RELATED [MaizeGDB:64632] synonym: "kernel watery ripe" RELATED [GRO:0007106] synonym: "lag phase in maize" RELATED [MaizeGDB:67370] synonym: "post-flowering in maize" RELATED [MaizeGDB:67370] synonym: "proembryo in maize" RELATED [MaizeGDB:67370] synonym: "R1in maize" RELATED [MaizeGDB:67370] is_obsolete: true [Term] id: PO:0007036 name: FR.00 beginning of fruit ripening namespace: plant_growth_and_development_stage def: "The stage at which fruit maturation begins." [GR:ap, ISBN:3826331524] synonym: "8.01 Beginning of bean ripening in soybean" RELATED [SOY:0000085] synonym: "beginning of fruit coloration" RELATED [] synonym: "first silique shattered" RELATED [] synonym: "FR.00 beginning of fruit ripening in Solanaceae" RELATED [SGN:0000047] is_a: PO:0007010 ! 6 ripening [Term] id: PO:0007037 name: inflorescence bifurcation stage namespace: plant_growth_and_development_stage def: "Stage of inflorescence development marked by the formation of two, oftern equal-sized, inflorescence meristems from one inflorescence meristem." [POC:curators] is_a: PO:0001083 ! inflorescence development stages [Term] id: PO:0007038 name: FR.04 fruit ripening complete namespace: plant_growth_and_development_stage def: "The stage at which fruit ripening is complete." [GR:ap, ISBN:3826331524] synonym: "10-ripening in barley" RELATED [GRO:0007114] synonym: "10-ripening in oat" RELATED [GRO:0007114] synonym: "10-ripening in Triticeae" RELATED [GRO:0007114] synonym: "10-ripening in wheat" RELATED [GRO:0007114] synonym: "10.01-kernel medium hard" RELATED [GRO:0007115] synonym: "10.02-kernel hard" RELATED [GRO:0007116] synonym: "8.09 Final ripening in soybean" RELATED [SOY:0000089] synonym: "9.02 dry kernel in maize" RELATED [GRO:0007037] synonym: "9.2 dry kernel in maize" RELATED [MaizeGDB:67381] synonym: "BBCH principal growth stage 89" RELATED [ISBN:3826331524] synonym: "dry kernel in maize" RELATED [MaizeGDB:67381] synonym: "dry seed in maize" RELATED [MaizeGDB:67381] synonym: "FR.04 fruit ripening complete in Solanaceae" RELATED [SGN:0000051] synonym: "fully ripe" RELATED [] synonym: "fully ripe grain hard, difficult to divide by thumbnail in rice" RELATED [ISBN:3826331524] synonym: "fully ripe kernels hard and shiny about 65% dry matter in maize" RELATED [ISBN:3826331524] synonym: "tomato fully red ripe fruit" RELATED [SGN:0000051] is_a: PO:0007010 ! 6 ripening [Term] id: PO:0007039 name: leaf trichome development stage namespace: plant_growth_and_development_stage def: "Stages of development of a trichome defined by characteristic morphological, structural, histological or other visible features." [GR:cwt] is_a: PO:0001050 ! leaf development stages [Term] id: PO:0007041 name: inflorescence emergence from flag leaf sheath namespace: plant_growth_and_development_stage def: "The stage at which the inflorescence emerges from the flag leaf sheath." [GR:ap] synonym: "06-heading stage in rice" RELATED [GRO:0007044] synonym: "06-inflorescence emergence in barley" RELATED [GRO:0007095] synonym: "06-inflorescence emergence in oat" RELATED [GRO:0007095] synonym: "06-inflorescence emergence in wheat" RELATED [GRO:0007095] synonym: "08-heading in sorghum" RELATED [GRO:0007131] synonym: "half bloom in sorghum" RELATED [GRO:0007131] synonym: "heading" RELATED [GRO:0007095] synonym: "rice growth stage-6" RELATED [GRO:0007044] synonym: "sorghum growth stage-7" RELATED [GRO:0007131] synonym: "tasseling" RELATED [] is_a: PO:0007012 ! Poaceae inflorescence visible [Term] id: PO:0007042 name: 5 fruit formation namespace: plant_growth_and_development_stage def: "Formation of the seed-bearing structure after flowering." [Poc:curators] comment: Although the use of stages like milk or particular fruit sizes properly refer to the development of an individual fruit, they are commonly used as here to extrapolate to a growth of a whole plant or a group of plants. synonym: "07-milk stage in rice" RELATED [GRO:0007046] synonym: "08-milk development in barley" RELATED [GRO:0007105] synonym: "08-milk development in oat" RELATED [GRO:0007105] synonym: "08-milk development in wheat" RELATED [GRO:0007105] synonym: "5 fruit formation in Solanaceae" RELATED [SGN:0000040] synonym: "6.01-dilatory in maize" RELATED [GRO:0007026] synonym: "6.02-exponential in maize" RELATED [GRO:0007027] synonym: "6.1 dilatory in maize" RELATED [MaizeGDB:67371] synonym: "6.2 exponential in maize" RELATED [MaizeGDB:67369] synonym: "dilatory in maize" RELATED [MaizeGDB:67371] synonym: "exponential in maize" RELATED [MaizeGDB:67369] synonym: "free nuclear in maize" RELATED [MaizeGDB:67371] synonym: "milk grain" RELATED [] synonym: "milk stage in rice" RELATED [GRO:0007046] synonym: "mitotic in maize" RELATED [MaizeGDB:67369] synonym: "proembryo in maize" RELATED [MaizeGDB:67371] synonym: "rice growth stage-7" RELATED [GRO:0007046] synonym: "transition stage in maize" RELATED [MaizeGDB:67369] synonym: "Zadok scale-70" RELATED [GRO:0007105] is_a: PO:0007130 ! B reproductive growth [Term] id: PO:0007043 name: hypocotyl emergence namespace: plant_growth_and_development_stage def: "Emergence of the hypocotyl above ground." [GR:ap, ISBN:0306416875] comment: Occurs in plants with epigeal germination. synonym: "0.07.01 Cotyledons and hypocotyl emerge in soybean" RELATED [SOY:0000013] synonym: "0.07.02 Hypocotyl emerges above soil in soybean" RELATED [SOY:0000092] synonym: "BBCH growth stage 08" RELATED [ISBN:3826331524] synonym: "hypocotyl and cotyledon emergence in Arabidopsis" RELATED [TAIR:0000396] synonym: "hypocotyl emergence in Solanaceae" RELATED [SGN:0000010] is_a: PO:0007030 ! shoot emergence [Term] id: PO:0007044 name: BO.02 mid boot stage namespace: plant_growth_and_development_stage def: "The flag leaf sheath is just visibly swollen." [GR:ap, ISBN:3826331524] comment: In rice the flag leaf sheath is 5-10cm out of the penultimate leaf sheath. synonym: "5.02-flag leaf sheath extending in barley" RELATED [GRO:0007092] synonym: "5.02-flag leaf sheath extending in oat" RELATED [GRO:0007092] synonym: "5.02-flag leaf sheath extending in wheat" RELATED [GRO:0007092] synonym: "flag leaf sheath just visibly swollen" RELATED [] synonym: "Zadok scale-45, Feekes scale-10, Haun scale-9.2" RELATED [GRO:0007092] is_a: PO:0007014 ! booting [Term] id: PO:0007045 name: coleoptile emergence namespace: plant_growth_and_development_stage def: "Emergence of coleoptile above ground." [GR:ap, ISBN:3826331524] synonym: "0.3 coleoptile emergence from seed in maize" RELATED [MaizeGDB:67352] synonym: "BBCH growth stage 09" RELATED [ISBN:3826331524] is_a: PO:0007030 ! shoot emergence [Term] id: PO:0007046 name: IL.01 1/4 inflorescence length reached namespace: plant_growth_and_development_stage def: "The stage when 1/4 Inflorescence is visible." [GR:ap] synonym: "4.02 1/4 of inflorescence length reached in soybean" RELATED [SOY:0000068] is_a: PO:0007047 ! 3 inflorescence visible [Term] id: PO:0007047 name: 3 inflorescence visible namespace: plant_growth_and_development_stage def: "The stage at which plant is producing inflorescence(s)." [Poc:curators] synonym: "3 inflorescence visible in Solanaceae" RELATED [SGN:0000033] synonym: "4 Inflorescence Formation in soybean" RELATED [SOY:0000005] synonym: "BBCH principal growth stage 5" RELATED [ISBN:3826331524] is_a: PO:0007130 ! B reproductive growth [Term] id: PO:0007048 name: IE.01 1/4 of inflorescence emerged from flag leaf sheath namespace: plant_growth_and_development_stage def: "The stage at which 1/4 of inflorescence has emerged from flag leaf sheath." [GR:ap] synonym: "30% of panicle emerged in rice" RELATED [] synonym: "6.02-1/4 of inflorescence emerged in barley" RELATED [GRO:0007097] synonym: "6.02-1/4 of inflorescence emerged in oat" RELATED [GRO:0007097] synonym: "6.02-1/4 of inflorescence emerged in wheat" RELATED [GRO:0007097] synonym: "Zadok scale-53, Feekes scale-10.2" RELATED [GRO:0007097] is_a: PO:0007041 ! inflorescence emergence from flag leaf sheath [Term] id: PO:0007049 name: cotyledon emergence namespace: plant_growth_and_development_stage alt_id: PO:0007069 def: "Emergence of cotyledons above ground." [GR:ap, ISBN:3826331524] comment: This cannot be used in plants with hypogeal germination. synonym: "01-seedling emergence in sorghum" RELATED [GRO:0007125] synonym: "1.00 Cotyledon visible in soybean" RELATED [SOY:0000014] synonym: "1.00 imperfect leaf unrolled" RELATED [] synonym: "1.01-seedling emergence in maize" RELATED [GRO:0007008] synonym: "1.1 seedling emergence in maize" RELATED [MaizeGDB:64057] synonym: "2.01-first leaf through coleoptile in barley" RELATED [GRO:0007059] synonym: "2.01-first leaf through coleoptile in oat" RELATED [GRO:0007059] synonym: "2.01-first leaf through coleoptile in Triticeae" RELATED [GRO:0007059] synonym: "2.01-first leaf through coleoptile in wheat" RELATED [GRO:0007059] synonym: "BBCH growth stage 09" RELATED [ISBN:3826331524] synonym: "BBCH growth stage 10" RELATED [ISBN:3826331524] synonym: "cotyledon emergence in Solanaceae" RELATED [SGN:0000008] synonym: "cotyledons fully open in Arabidopsis" RELATED [TAIR:0000397] synonym: "hypocotyl and cotyledon emergence in Arabidopsis" RELATED [TAIR:0000396] synonym: "LP.00 cotyledon visible" RELATED [] synonym: "maize growth stage-1.1" RELATED [GRO:0007008] synonym: "Oryza first leaf through coleoptile" RELATED [] synonym: "sorghum growth stage-0" RELATED [GRO:0007125] synonym: "Sorghum seedling emergence" RELATED [GRO:0007125] synonym: "Triticeae first leaf through coleoptile" RELATED [GRO:0007059] synonym: "VE in maize" RELATED [MaizeGDB:64057] synonym: "VE stage in soybean" RELATED [SOY:0000014] synonym: "Zadok scale-10, Feekes scale-1" RELATED [GRO:0007059] is_a: PO:0007030 ! shoot emergence [Term] id: PO:0007050 name: FR.03 late stage of fruit ripening namespace: plant_growth_and_development_stage def: "The late stage of fruit ripening." [GR:ap, ISBN:3826331524] synonym: "09-maturity in maize" RELATED [GRO:0007037] synonym: "10.02-hard dough in sorghum" RELATED [GRO:0007134] synonym: "8 leveling off of grain-filling/embryo 5 in maize" RELATED [MaizeGDB:67382] synonym: "8.07 Late ripening in soybean" RELATED [SOY:0000088] synonym: "8.2-hard dough stage in rice" RELATED [GRO:0007154] synonym: "9 maturity in maize" RELATED [MaizeGDB:11088] synonym: "9.03-hard dough in barley" RELATED [GRO:0007113] synonym: "9.03-hard dough in oat" RELATED [GRO:0007113] synonym: "9.03-hard dough in wheat" RELATED [GRO:0007113] synonym: "9.1 physiological maturity/embryo 6 in maize" RELATED [MaizeGDB:67380] synonym: "attenuative in maize" RELATED [MaizeGDB:67382] synonym: "BBCH principal growth stage 87" RELATED [ISBN:3826331524] synonym: "black layer in maize" RELATED [MaizeGDB:67380] synonym: "dent stage in maize" RELATED [MaizeGDB:67382] synonym: "embryo stage 5 in maize" RELATED [MaizeGDB:67382] synonym: "embryo stage 6 in maize" RELATED [MaizeGDB:67380] synonym: "FR.03 late stage of fruit ripening in Solanaceae" RELATED [SGN:0000050] synonym: "hard dough" RELATED [] synonym: "late dough grain in rice" RELATED [GRO:0007154] synonym: "late dough stage in rice" RELATED [GRO:0007154] synonym: "leveling off of dry matter accumulation" RELATED [MaizeGDB:67382] synonym: "physiological maturity, black dot, about 60% dry matter in maize" RELATED [ISBN:3826331524] synonym: "R5 in maize" RELATED [MaizeGDB:67382] synonym: "R6 in maize" RELATED [MaizeGDB:67380] synonym: "rice growth stage-8.2" RELATED [GRO:0007154] synonym: "sorghum growth stage-10" RELATED [GRO:0007134] synonym: "Stage R7 Beginning maturity in soybean" RELATED [SOY:0000088] synonym: "storage maturity in maize" RELATED [MaizeGDB:67381] synonym: "tomato red firm fruit" RELATED [SGN:0000050] synonym: "Zadok scale-87, Haun scale-15" RELATED [GRO:0007113] is_a: PO:0007010 ! 6 ripening [Term] id: PO:0007051 name: BO.00 booting begins namespace: plant_growth_and_development_stage def: "Booting has just begun." [GR:ap, ISBN:3826331524] is_a: PO:0007014 ! booting [Term] id: PO:0007052 name: FL.03 3/4 of flowers open namespace: plant_growth_and_development_stage def: "The stage at which 3/4 of flowers open." [GR:ap] comment: This stage refers to the whole plant. synonym: "6.02 3/4 of flowers on main stem open in soybean" RELATED [SOY:0000074] synonym: "FL.03 3/4 of flowers open in Solanaceae" RELATED [SGN:0000038] synonym: "flowering finishing" RELATED [] synonym: "Stage R2 Open flower at one of the two uppermost nodes on the main stem with fully developed leaf in soybean" RELATED [SOY:0000074] is_a: PO:0007016 ! 4 flowering [Term] id: PO:0007053 name: FL.02 1/2 of flowers open namespace: plant_growth_and_development_stage def: "The stage at which 1/2 of flowers open." [GR:ap] comment: This stage refers to the whole plant. synonym: "6.02 1/2 of flowers on main stem open in soybean" RELATED [SOY:0000094] synonym: "7.02-anthesis half-way in barley" RELATED [GRO:0007103] synonym: "7.02-anthesis half-way in oat" RELATED [GRO:0007103] synonym: "7.02-anthesis half-way in wheat" RELATED [GRO:0007103] synonym: "FL.02 1/2 of flowers open in Solanaceae" RELATED [SGN:0000037] synonym: "full flowering" RELATED [] synonym: "Haun scale-11.5" RELATED [GRO:0007103] is_a: PO:0007016 ! 4 flowering [Term] id: PO:0007054 name: epicotyl emergence namespace: plant_growth_and_development_stage def: "Emergence of the epicotyl above ground." [GR:ap, ISBN:0306416875] comment: Only the first true foliage leaf or pair of leaves are visible. Occurs in plants with hypogeal germination. is_a: PO:0007030 ! shoot emergence [Term] id: PO:0007056 name: 1 pattern formation namespace: plant_growth_and_development_stage def: "Trichome initiation stage that determine numbers of trichome are formed." [GR:cwt] is_a: PO:0007039 ! leaf trichome development stage [Term] id: PO:0007057 name: 0 germination namespace: plant_growth_and_development_stage def: "The resumption of growth by the embryo in a seed." [GR:ap, ISBN:047124529] synonym: "0 germination in maize" RELATED [MaizeGDB:64055] synonym: "0 germination in Solanaceae" RELATED [SGN:0000003] synonym: "0 Germination in soybean" RELATED [SOY:0000001] synonym: "00-germination in maize" RELATED [GRO:0007003] synonym: "01-germination in barley" RELATED [GRO:0007051] synonym: "01-germination in oat" RELATED [GRO:0007051] synonym: "01-germination in rice" RELATED [GRO:0007043] synonym: "01-germination in Triticeae" RELATED [GRO:0007051] synonym: "01-germination in wheat" RELATED [GRO:0007051] synonym: "BBCH principal growth stage 0" RELATED [ISBN:3826331524] synonym: "germination in Arabidopsis" RELATED [TAIR:0000393] synonym: "maize growth stage-0" RELATED [GRO:0007003] synonym: "rice growth stage-1" RELATED [GRO:0007043] is_a: PO:0007134 ! A vegetative growth [Term] id: PO:0007058 name: 2 endoreduplication namespace: plant_growth_and_development_stage def: "The stage trichome nuclei continue to replicate their DNA after mitosis and cytokinesis have ceased, and as a consequence have a DNA content much greater than 2C." [GR:cwt] is_a: PO:0007039 ! leaf trichome development stage [Term] id: PO:0007059 name: 3 branch formation namespace: plant_growth_and_development_stage def: "The stage trichome develops branches." [GR:cwt] is_a: PO:0007039 ! leaf trichome development stage [Term] id: PO:0007060 name: obsolete growth and development terms namespace: plant_growth_and_development_stage is_obsolete: true [Term] id: PO:0007061 name: 2.00 main shoot only namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] synonym: "3.01-main shoot only in barley" RELATED [GRO:0007087] synonym: "3.01-main shoot only in oat" RELATED [GRO:0007087] synonym: "3.01-main shoot only in Triticeae" RELATED [GRO:0007087] synonym: "3.01-main shoot only in wheat" RELATED [GRO:0007087] synonym: "Zadok scale-20" RELATED [GRO:0007087] is_obsolete: true [Term] id: PO:0007062 name: SE.06 six nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which six nodes or six internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.06 6 nodes/internodes visible in soybean" RELATED [SOY:0000055] synonym: "4.07-sixth node detectable in barley" RELATED [GRO:0007087] synonym: "4.07-sixth node detectable in oat" RELATED [GRO:0007087] synonym: "4.07-sixth node detectable in wheat" RELATED [GRO:0007087] synonym: "BBCH growth stage 36" RELATED [ISBN:3826331524] synonym: "Zadok scale-36" RELATED [GRO:0007087] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007063 name: LP.07 seven leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at seven nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.07 6th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000021] synonym: "2.08-seven leaves unfolded in barley" RELATED [GRO:0007066] synonym: "2.08-seven leaves unfolded in oat" RELATED [GRO:0007066] synonym: "2.08-seven leaves unfolded in Triticeae" RELATED [GRO:0007066] synonym: "2.08-seven leaves unfolded in wheat" RELATED [GRO:0007066] synonym: "3.01-ear initiation" RELATED [GRO:0007013] synonym: "3.1 ear initiation/mid-whorl stage in maize" RELATED [MaizeGDB:67356] synonym: "6-8 leaves in maize" RELATED [MaizeGDB:67356] synonym: "7 leaves unfolded" RELATED [] synonym: "7 rosette leaf in Arabidopsis" RELATED [TAIR:0000410] synonym: "7-leaf in maize" RELATED [MaizeGDB:67356] synonym: "BBCH growth stage 17" RELATED [ISBN:3826331524] synonym: "ear initiation in maize" RELATED [MaizeGDB:67356] synonym: "LP.07 seven leaves visible in Solanaceae" RELATED [SGN:0000019] synonym: "maize growth stage-3.1" RELATED [GRO:0007013] synonym: "mid-whorl stage in maize" RELATED [MaizeGDB:67356] synonym: "seven rosette leaves" RELATED [] synonym: "seventh leaf unfolded" RELATED [] synonym: "Stage V6 in soybean" RELATED [SOY:0000021] synonym: "Triticeae seven leaves unfolded" RELATED [GRO:0007066] synonym: "V7 in maize" RELATED [MaizeGDB:67356] synonym: "Zadok scale-, Haun scale-6.+" RELATED [GRO:0007066] is_a: PO:0007133 ! leaf production [Term] id: PO:0007064 name: LP.12 twelve leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at twelve nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.12 11th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000026] synonym: "12 rosette leaf in Arabidopsis" RELATED [TAIR:0000415] synonym: "3.03-mid-vegetative" RELATED [GRO:0007013] synonym: "3.3 mid-vegetative" RELATED [MaizeGDB:67359] synonym: "3.3 mid-vegetative stage of maize" RELATED [GRO:0007013] synonym: "maize growth stage-3.3" RELATED [GRO:0007013] synonym: "mid-vegetative in maize" RELATED [MaizeGDB:67359] synonym: "mid-vegetative stage of maize" RELATED [GRO:0007013] synonym: "Stage V11 in soybean" RELATED [SOY:0000026] synonym: "twelve leaves unfolded" RELATED [] synonym: "twelve rosette leaves" RELATED [] synonym: "V12 in maize" RELATED [MaizeGDB:67359] is_a: PO:0007133 ! leaf production [Term] id: PO:0007065 name: LP.05 five leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at five nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "02-tassel initiation in maize" RELATED [GRO:0007011] synonym: "04-five leaf stage in sorghum" RELATED [GRO:0007127] synonym: "1.05 4th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000019] synonym: "2 tassel initiation/early whorl stage in maize" RELATED [MaizeGDB:67306] synonym: "2.06-five leaves unfolded in barley" RELATED [GRO:0007064] synonym: "2.06-five leaves unfolded in oat" RELATED [GRO:0007064] synonym: "2.06-five leaves unfolded in Triticeae" RELATED [GRO:0007064] synonym: "2.06-five leaves unfolded in wheat" RELATED [GRO:0007064] synonym: "4-6 leaves in maize" RELATED [MaizeGDB:67306] synonym: "5 leaves unfolded" RELATED [] synonym: "5 rosette leaf in Arabidopsis" RELATED [TAIR:0000408] synonym: "BBCH growth stage 15" RELATED [ISBN:3826331524] synonym: "early whorl stage in maize" RELATED [MaizeGDB:67306] synonym: "fifth leaf unfolded" RELATED [] synonym: "five rosette leaves" RELATED [] synonym: "LP.05 five leaves visible in Solanaceae" RELATED [SGN:0000017] synonym: "maize growth stage-2" RELATED [GRO:0007011] synonym: "rice growth stage-3" RELATED [GRO:0007049] synonym: "Sorghum five leaf stage" RELATED [GRO:0007127] synonym: "sorghum growth stage-3" RELATED [GRO:0007127] synonym: "Stage V4 in soybean" RELATED [SOY:0000019] synonym: "tassel differentiation in maize" RELATED [MaizeGDB:67306] synonym: "tassel initiation in maize" RELATED [MaizeGDB:67306] synonym: "Triticeae five leaves unfolded" RELATED [GRO:0007064] synonym: "V5 in maize" RELATED [MaizeGDB:67306] synonym: "Zadok scale-15, Haun scale-4.+" RELATED [GRO:0007064] is_a: PO:0007133 ! leaf production [Term] id: PO:0007066 name: SE.09 nine nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which nine nodes or nine internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.09 9 nodes/internodes visible in soybean" RELATED [SOY:0000058] synonym: "BBCH growth stage 39" RELATED [ISBN:3826331524] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007067 name: LP.17 seventeen leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at seventeen nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.17 16th trifoliate leaf unfolded in soybean" RELATED [SOY:0000031] synonym: "3.04-late vegetative" RELATED [GRO:0007016] synonym: "3.4 late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "3.4 late vegetative stage of maize" RELATED [GRO:0007016] synonym: "late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "late vegetative stage of maize" RELATED [GRO:0007016] synonym: "maize growth stage-3.4" RELATED [GRO:0007016] synonym: "maize V17 stage" RELATED [GRO:0007016] synonym: "Stage V16 in soybean" RELATED [SOY:0000031] synonym: "V17 in maize" RELATED [MaizeGDB:67360] is_a: PO:0007133 ! leaf production [Term] id: PO:0007068 name: mid rosette growth namespace: plant_growth_and_development_stage def: "Rosette has reached approximately 50% of its final diameter." [Poc:curators] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "mid rosette growth in Arabidopsis" RELATED [TAIR:0000044] is_a: PO:0007113 ! rosette growth [Term] id: PO:0007070 name: SE.08 eight nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which eight nodes or eight internodes are visible." [GR:ap] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.08 8 nodes/internodes visible in soybean" RELATED [SOY:0000057] synonym: "BBCH growth stage 38" RELATED [ISBN:3826331524] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007071 name: 2.02 main shoot and axillary shoots visible at two nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at two nodes are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.02 Main shoot and axillary shoots visible at 2 nodes in soybean" RELATED [SOY:0000041] synonym: "2.02 main shoot and axillary shoots visible at two nodes in Solanaceae" RELATED [SGN:0000024] synonym: "3.03-main shoot and two tillers" RELATED [GRO:0007072] synonym: "BBCH growth stage 22" RELATED [ISBN:3826331524] synonym: "main shoot and 2 tillers" RELATED [GRO:0007072] synonym: "main shoot and second tiller visible" RELATED [GRO:0007072] synonym: "main shoot and two tillers in barley" RELATED [GRO:0007072] synonym: "main shoot and two tillers in oat" RELATED [GRO:0007072] synonym: "main shoot and two tillers in wheat" RELATED [GRO:0007072] synonym: "second axillary shoot detectable" RELATED [] synonym: "second tiller detectable" RELATED [] synonym: "Zadok scale-22" RELATED [GRO:0007072] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007072 name: LP.18 eighteen leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at eighteen nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.18 17th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000032] synonym: "3.04-late vegetative" RELATED [GRO:0007016] synonym: "3.4 late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "3.4 late vegetative stage of maize" RELATED [GRO:0007016] synonym: "late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "late vegetative stage of maize" RELATED [GRO:0007016] synonym: "maize growth stage-3.4" RELATED [GRO:0007016] synonym: "maize V18 stage" RELATED [GRO:0007016] synonym: "Stage V17 in soybean" RELATED [SOY:0000032] synonym: "V18 in maize" RELATED [MaizeGDB:67360] is_a: PO:0007133 ! leaf production [Term] id: PO:0007073 name: 2 formation of axillary shoot namespace: plant_growth_and_development_stage def: "The stage at which the axillary shoots are forming." [Poc:curators] synonym: "03-tillering in barley" RELATED [GRO:0007069] synonym: "03-tillering in oat" RELATED [GRO:0007069] synonym: "03-tillering in wheat" RELATED [GRO:0007069] synonym: "03-tillering stage in rice" RELATED [GRO:0007049] synonym: "2 axillary Shoot Formation in soybean" RELATED [SOY:0000003] synonym: "2 formation of axillary shoot in Solanaceae" RELATED [SGN:0000022] synonym: "BBCH principal growth stage 2" RELATED [ISBN:3826331524] synonym: "formation of side shoot" RELATED [] synonym: "rice growth stage-3" RELATED [GRO:0007049] synonym: "tillering" RELATED [] is_a: PO:0007134 ! A vegetative growth [Term] id: PO:0007074 name: SE.15 fifteen nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which fifteen nodes or fifteen internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.15 15 nodes/internodes visible in soybean" RELATED [SOY:0000064] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007075 name: 5.02 20% of inflorescence emerged. namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007076 name: late rosette growth namespace: plant_growth_and_development_stage def: "Rosette has reached approximately 70% of its final diameter." [Poc:curators] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "late rosette growth in Arabidopsis" RELATED [TAIR:0000045] is_a: PO:0007113 ! rosette growth [Term] id: PO:0007077 name: 2.08 main shoot and axillary shoots visible at eight nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at eight nodes are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.08 Main shoot and axillary shoots visible at 8 nodes in soybean" RELATED [SOY:0000047] synonym: "2.08 main shoot and axillary shoots visible at eight nodes in Solanaceae" RELATED [SGN:0000030] synonym: "3.09-main shoot and eight tillers" RELATED [GRO:0007078] synonym: "BBCH growth stage 28" RELATED [ISBN:3826331524] synonym: "eighth axillary shoot detectable" RELATED [] synonym: "eighth tiller detectable" RELATED [] synonym: "main shoot and 8 tillers" RELATED [] synonym: "main shoot and eight tillers in barley" RELATED [GRO:0007078] synonym: "main shoot and eight tillers in oat" RELATED [GRO:0007078] synonym: "main shoot and eight tillers in wheat" RELATED [GRO:0007078] synonym: "main shoot and eighth tiller visible" RELATED [] synonym: "Zadok scale-28" RELATED [GRO:0007078] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007078 name: rosette growth complete namespace: plant_growth_and_development_stage def: "Stage at which rosette no longer increases in diameter, its leaf growth and expansion having ceased." [Poc:curators] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "complete rosette in Arabidopsis" RELATED [TAIR:0000418] is_a: PO:0007113 ! rosette growth [Term] id: PO:0007079 name: SE.00 stem elongation begins namespace: plant_growth_and_development_stage def: "The stage at which the internodes begin to elongate." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.00 stem elongation begins in soybean" RELATED [SOY:0000049] synonym: "4.01-pseudo stem erection in barley" RELATED [GRO:0007081] synonym: "4.01-pseudo stem erection in oat" RELATED [GRO:0007081] synonym: "4.01-pseudo stem erection in wheat" RELATED [GRO:0007081] synonym: "4.1-panicle initiation stage" RELATED [GRO:0007147] synonym: "4.2-panicle differentiation stage" RELATED [GRO:0007041] synonym: "BBCH growth stage 30" RELATED [ISBN:3826331524] synonym: "pseudo stem and tillers erect" RELATED [] synonym: "pseudo stem erection" RELATED [] synonym: "rice green ring stage" RELATED [] synonym: "rice panicle initiation" RELATED [] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007080 name: 2.03 main shoot and axillary shoots visible at three nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at three nodes are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.03 Main shoot and axillary shoots visible at 3 nodes in soybean" RELATED [SOY:0000042] synonym: "2.03 main shoot and axillary shoots visible at three nodes in Solanaceae" RELATED [SGN:0000025] synonym: "3.04-main shoot and three tillers" RELATED [GRO:0007073] synonym: "BBCH growth stage 23" RELATED [ISBN:3826331524] synonym: "main shoot and 3 tillers" RELATED [] synonym: "main shoot and third tiller visible" RELATED [] synonym: "main shoot and three tillers in barley" RELATED [GRO:0007073] synonym: "main shoot and three tillers in oat" RELATED [GRO:0007073] synonym: "main shoot and three tillers in wheat" RELATED [GRO:0007073] synonym: "third axillary shoot detectable" RELATED [] synonym: "third tiller detectable" RELATED [] synonym: "Zadok scale-23" RELATED [GRO:0007073] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007081 name: early rosette growth namespace: plant_growth_and_development_stage def: "Rosette has reached approximately 20% of its final diameter." [Poc:curators] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "early rosette growth in Arabidopsis" RELATED [TAIR:0000043] is_a: PO:0007113 ! rosette growth [Term] id: PO:0007082 name: LP.20 twenty or more leaves whorls visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at twenty or more nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.20 19th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000034] synonym: "1.21 20th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000035] synonym: "1.22 21st trifoliolate leaf unfolded in soybean" RELATED [SOY:0000036] synonym: "1.23 22nd trifoliolate leaf unfolded in soybean" RELATED [SOY:0000037] synonym: "1.24 23rd trifoliolate leaf unfolded in soybean" RELATED [SOY:0000038] synonym: "1.25 25 or more trifoliolate leaves unfolded in soybean" RELATED [SOY:0000039] synonym: "3.04-late vegetative" RELATED [GRO:0007016] synonym: "3.4 late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "3.4 late vegetative stage of maize" RELATED [GRO:0007016] synonym: "late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "late vegetative stage of maize" RELATED [GRO:0007016] synonym: "maize growth stage-3.4" RELATED [GRO:0007016] synonym: "maize V20 stage" RELATED [] synonym: "Stage V20 in soybean" RELATED [SOY:0000035] synonym: "Stage V21 in soybean" RELATED [SOY:0000036] synonym: "Stage V22 in soybean" RELATED [SOY:0000037] synonym: "Stage V23 in soybean" RELATED [SOY:0000038] synonym: "Stage V25 in soybean" RELATED [SOY:0000039] synonym: "V20 in maize" RELATED [MaizeGDB:67360] is_a: PO:0007133 ! leaf production [Term] id: PO:0007083 name: LP.13 thirteen leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at thirteen nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.13 12th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000027] synonym: "13 rosette leaf in Arabidopsis" RELATED [TAIR:0000416] synonym: "3.03-mid-vegetative" RELATED [GRO:0007015] synonym: "3.3 mid-vegetative" RELATED [MaizeGDB:67359] synonym: "3.3 mid-vegetative stage of maize" RELATED [GRO:0007015] synonym: "maize growth stage-3.3" RELATED [GRO:0007015] synonym: "mid-vegetative in maize" RELATED [MaizeGDB:67359] synonym: "mid-vegetative stage of maize" RELATED [GRO:0007015] synonym: "Stage V12 in soybean" RELATED [SOY:0000027] synonym: "thirteen leaves unfolded" RELATED [] synonym: "thirteen rosette leaves" RELATED [] synonym: "V13 in maize" RELATED [MaizeGDB:67359] is_a: PO:0007133 ! leaf production [Term] id: PO:0007084 name: SE.10 ten nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which ten nodes or ten internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.10 10 nodes/internodes visible in soybean" RELATED [SOY:0000059] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007085 name: LP.14 fourteen leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at fourteen nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.14 13th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000028] synonym: "14 rosette leaf in Arabidopsis" RELATED [TAIR:0000417] synonym: "3.03-mid-vegetative" RELATED [GRO:0007015] synonym: "3.3 mid-vegetative" RELATED [MaizeGDB:67359] synonym: "3.3 mid-vegetative stage of maize" RELATED [GRO:0007015] synonym: "fourteen leaves unfolded" RELATED [] synonym: "fourteen rosette leaves" RELATED [] synonym: "maize growth stage-3.3" RELATED [GRO:0007015] synonym: "Stage V13 in soybean" RELATED [SOY:0000028] synonym: "V14 in maize" RELATED [MaizeGDB:67359] is_a: PO:0007133 ! leaf production [Term] id: PO:0007086 name: SE.05 five nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which five nodes or five internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.05 5 nodes/internodes visible in soybean" RELATED [SOY:0000054] synonym: "4.06-fifth node detectable in barley" RELATED [GRO:0007086] synonym: "4.06-fifth node detectable in oat" RELATED [GRO:0007086] synonym: "4.06-fifth node detectable in wheat" RELATED [GRO:0007086] synonym: "BBCH growth stage 35" RELATED [ISBN:3826331524] synonym: "Zadok scale-35" RELATED [GRO:0007086] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007087 name: 2.01 main shoot and axillary shoots visible at one node namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoot(s) at one node is (are) visible." [Poc:curators] synonym: "2.01 Main shoot and axillary shoot visible at one node in soybean" RELATED [SOY:0000040] synonym: "2.01 main shoot and axillary shoots visible at one node in Solanaceae" RELATED [SGN:0000023] synonym: "3.02-main shoot and one tiller" RELATED [GRO:0007071] synonym: "BBCH growth stage 21" RELATED [ISBN:3826331524] synonym: "first axillary shoot detectable" RELATED [] synonym: "first tiller detectable" RELATED [] synonym: "main shoot and 1 tiller" RELATED [] synonym: "main shoot and first tiller visible" RELATED [] synonym: "main shoot and one tiller in barley" RELATED [GRO:0007071] synonym: "main shoot and one tiller in oat" RELATED [GRO:0007071] synonym: "main shoot and one tiller in wheat" RELATED [GRO:0007071] synonym: "Zadok scale-21, Feekes scale-2" RELATED [GRO:0007071] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007088 name: 2.04 main shoot and axillary shoots visible at four nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at four nodes are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.04 Main shoot and axillary shoots visible at 4 nodes in soybean" RELATED [SOY:0000043] synonym: "2.04 main shoot and axillary shoots visible at four nodes in Solanaceae" RELATED [SGN:0000026] synonym: "3.05-main shoot and four tillers" RELATED [GRO:0007074] synonym: "BBCH growth stage 24" RELATED [ISBN:3826331524] synonym: "fourth axillary shoot detectable" RELATED [] synonym: "fourth tiller detectable" RELATED [] synonym: "main shoot and 4 tillers" RELATED [] synonym: "main shoot and four tillers in barley" RELATED [GRO:0007074] synonym: "main shoot and four tillers in oat" RELATED [GRO:0007074] synonym: "main shoot and four tillers in wheat" RELATED [GRO:0007074] synonym: "main shoot and fourth tiller visible" RELATED [] synonym: "Zadok scale-24" RELATED [GRO:0007074] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007089 name: stem elongation namespace: plant_growth_and_development_stage def: "The stage at which the internodes elongate." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "04-stem elongation in barley" RELATED [GRO:0007080] synonym: "04-stem elongation in oat" RELATED [GRO:0007080] synonym: "04-stem elongation in wheat" RELATED [GRO:0007080] synonym: "04-stem elongation stage in Triticeae" RELATED [GRO:0007080] synonym: "05-growing point differentiation" RELATED [] synonym: "3 rapid stem elongation in maize" RELATED [MaizeGDB:67358] synonym: "3 Stem Elongation in soybean" RELATED [SOY:0000004] synonym: "BBCH principal growth stage 3" RELATED [ISBN:3826331524] synonym: "crop cover in potato" RELATED [SGN:0000054] synonym: "internode elongation" RELATED [] synonym: "jointing stage" RELATED [GRO:0007048] synonym: "rapid stem elongation" RELATED [] synonym: "rice growth stage-4" RELATED [GRO:0007048] synonym: "shoot development" RELATED [] synonym: "sorghum growth stage-4" RELATED [GRO:0007128] synonym: "stem elongation in Solanaceae" RELATED [SGN:0000054] is_a: PO:0007112 ! 1 main shoot growth [Term] id: PO:0007090 name: SE.13 thirteen nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which thirteen nodes or thirteen internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.13 13 nodes/internodes visible in soybean" RELATED [SOY:0000062] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007091 name: SE.01 one node or internode visible namespace: plant_growth_and_development_stage def: "The stage at which one node or one internode is visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.01 one node visible in soybean" RELATED [SOY:0000050] synonym: "4.02-first node detectable in barley" RELATED [GRO:0007082] synonym: "4.02-first node detectable in oat" RELATED [GRO:0007082] synonym: "4.02-first node detectable in wheat" RELATED [GRO:0007082] synonym: "BBCH growth stage 31" RELATED [ISBN:3826331524] synonym: "Zadok scale-31, Feekes scale-6" RELATED [GRO:0007082] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007092 name: SE.04 four nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which four nodes or four internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.04 4 nodes/internodes visible in soybean" RELATED [SOY:0000053] synonym: "4.05-fourth node detectable in barley" RELATED [GRO:0007085] synonym: "4.05-fourth node detectable in oat" RELATED [GRO:0007085] synonym: "4.05-fourth node detectable in wheat" RELATED [GRO:0007085] synonym: "BBCH growth stage 34" RELATED [ISBN:3826331524] synonym: "Zadok scale-34" RELATED [GRO:0007085] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007093 name: 2.05 main shoot and axillary shoots visible at five nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at five nodes are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.05 Main shoot and axillary shoots visible at 5 nodes in soybean" RELATED [SOY:0000044] synonym: "2.05 main shoot and axillary shoots visible at five nodes in Solanaceae" RELATED [SGN:0000027] synonym: "3.06-main shoot and five tillers in barley" RELATED [GRO:0007075] synonym: "3.06-main shoot and five tillers in oat" RELATED [GRO:0007075] synonym: "3.06-main shoot and five tillers in Triticeae" RELATED [GRO:0007075] synonym: "3.06-main shoot and five tillers in wheat" RELATED [GRO:0007075] synonym: "BBCH growth stage 25" RELATED [ISBN:3826331524] synonym: "fifth axillary shoot detectable" RELATED [] synonym: "fifth tiller detectable" RELATED [] synonym: "main shoot and 5 tillers" RELATED [] synonym: "main shoot and fifth tiller visible" RELATED [] synonym: "main shoot and five tillers in barley" RELATED [GRO:0007075] synonym: "main shoot and five tillers in oat" RELATED [GRO:0007075] synonym: "main shoot and five tillers in wheat" RELATED [GRO:0007075] synonym: "Zadok scale-25" RELATED [GRO:0007075] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007094 name: LP.01 one leaf visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at one node, other than the cotyledonary node, are visible above ground." [GR:ap, Poc:curators] comment: In the taxa with hypogeal type germination the first leaf on the epicotyl is leaf 1, and in grasses, the coleoptile is leaf 1. The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1-4 leaf stage in rice" RELATED [GRO:0007142] synonym: "1.01 Unifoliolate leaves unfolded in soybean" RELATED [SOY:0000015] synonym: "1.02-one to two leaves in maize" RELATED [GRO:0007009] synonym: "1.2 1-2 leaves in maize" RELATED [Maize:67353] synonym: "2.02-first leaf unfolded in barley" RELATED [GRO:0007060] synonym: "2.02-first leaf unfolded in oat" RELATED [GRO:0007060] synonym: "2.02-first leaf unfolded in Triticeae" RELATED [GRO:0007060] synonym: "2.02-first leaf unfolded in wheat" RELATED [GRO:0007060] synonym: "BBCH growth stage 11" RELATED [ISBN:3826331524] synonym: "LP.01 one leaf visible in Solanaceae" RELATED [SGN:0000013] synonym: "maize growth stage-1.2" RELATED [GRO:0007009] synonym: "pre tillering" RELATED [GRO:0007142] synonym: "rice growth stage-2.1" RELATED [GRO:0007142] synonym: "V1 in maize " RELATED [Maize:67353] synonym: "VC stage in soybean" RELATED [SOY:0000015] synonym: "Zadok scale-11, Haun scale-1.+" RELATED [GRO:0007060] synonym: "Zea V01 stage" RELATED [] is_a: PO:0007133 ! leaf production [Term] id: PO:0007095 name: LP.08 eight leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at eight nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.08 7th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000022] synonym: "2.09-eight leaves unfolded in barley" RELATED [GRO:0007067] synonym: "2.09-eight leaves unfolded in oat" RELATED [GRO:0007067] synonym: "2.09-eight leaves unfolded in Triticeae" RELATED [GRO:0007067] synonym: "2.09-eight leaves unfolded in wheat" RELATED [GRO:0007067] synonym: "3.01-ear initiation in Maize" RELATED [GRO:0007013] synonym: "3.1 ear initiation/mid-whorl stage in maize" RELATED [MaizeGDB:67356] synonym: "8 leaves unfolded" RELATED [] synonym: "8 rosette leaves in Arabidopsis" RELATED [TAIR:0000411] synonym: "8-leaf in maize" RELATED [MaizeGDB:67356] synonym: "BBCH growth stage 18" RELATED [ISBN:3826331524] synonym: "ear initiation in maize" RELATED [MaizeGDB:67356] synonym: "eight leaf unfolded" RELATED [] synonym: "eight rosette leaves" RELATED [] synonym: "LP.08 eight leaves visible in Solanaceae" RELATED [SGN:0000020] synonym: "maize growth stage-3.1" RELATED [GRO:0007013] synonym: "mid-whorl stage in maize" RELATED [MaizeGDB:67356] synonym: "Stage V7 in soybean" RELATED [SOY:0000022] synonym: "Triticeae eight leaves unfolded" RELATED [GRO:0007067] synonym: "V8 in maize" RELATED [MaizeGDB:67356] synonym: "Zadok scale-18, Haun scale-7.+" RELATED [GRO:0007067] is_a: PO:0007133 ! leaf production [Term] id: PO:0007096 name: SE.03 three nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which three nodes or three internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.03 3 nodes/internodes visible in soybean" RELATED [SOY:0000052] synonym: "4.04-third node detectable in barley" RELATED [GRO:0007084] synonym: "4.04-third node detectable in oat" RELATED [GRO:0007084] synonym: "4.04-third node detectable in wheat" RELATED [GRO:0007084] synonym: "BBCH growth stage 33" RELATED [ISBN:3826331524] synonym: "Zadok scale-33" RELATED [GRO:0007084] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007097 name: SE.14 fourteen nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which fourteen nodes or fourteen internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.14 14 nodes/internodes visible in soybean" RELATED [SOY:0000063] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007098 name: LP.02 two leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at two nodes, other than the cotyledonary node, are visible above ground." [Poc:curators] comment: In grasses, the plant has one leaf plus the coleoptile. The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1-4 leaf stage in rice" RELATED [GRO:0007142] synonym: "1.02 First trifoliolate leaf unfolded in soybean" RELATED [SOY:0000016] synonym: "1.02-one to two leaves in maize" RELATED [GRO:0007009] synonym: "1.2 1-2 leaves in maize" RELATED [MaizeGDB:67353] synonym: "2 leaves unfolded" RELATED [] synonym: "2 rosette leaves in Arabidopsis" RELATED [TAIR:0000398] synonym: "2.03-two leaves unfolded in barley" RELATED [GRO:0007061] synonym: "2.03-two leaves unfolded in oat" RELATED [GRO:0007061] synonym: "2.03-two leaves unfolded in Triticeae" RELATED [GRO:0007061] synonym: "2.03-two leaves unfolded in wheat" RELATED [GRO:0007061] synonym: "BBCH growth stage 12" RELATED [ISBN:3826331524] synonym: "LP.02 two leaves visible in Solanaceae" RELATED [SGN:0000014] synonym: "maize growth stage-1.2" RELATED [GRO:0007009] synonym: "pre tillering" RELATED [GRO:0007142] synonym: "rice growth stage-2.1" RELATED [GRO:0007142] synonym: "Triticeae two leaves unfolded" RELATED [GRO:0007061] synonym: "two rosette leaves" RELATED [] synonym: "V1 stage in soybean" RELATED [SOY:0000016] synonym: "V2 in maize" RELATED [MaizeGDB:67353] synonym: "Zadok scale-12, Haun scale-1.+" RELATED [GRO:0007061] is_a: PO:0007133 ! leaf production [Term] id: PO:0007099 name: SE.97 flag leaf visible namespace: plant_growth_and_development_stage def: "The stage at which the flag leaf is visible." [GR:ap] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "06-flag leaf visible in sorghum" RELATED [GRO:0007129] synonym: "4.08-flag leaf just visible in barley" RELATED [GRO:0007088] synonym: "4.08-flag leaf just visible in oat" RELATED [GRO:0007088] synonym: "4.08-flag leaf just visible in wheat" RELATED [GRO:0007088] synonym: "Zadok scale-37, Feekes scale-8" RELATED [GRO:0007088] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007100 name: SE.16 sixteen or more nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which sixteen nodes or more, or sixteen internodes or more are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.16 16 or more nodes/internodes visible in soybean" RELATED [SOY:0000065] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007101 name: LP.09 nine leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at nine nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.09 8th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000023] synonym: "10-leaf in maize" RELATED [MaizeGDB:67357] synonym: "2.10 nine or more leaves unfolded in barley" RELATED [GRO:0007068] synonym: "2.10 nine or more leaves unfolded in oat" RELATED [GRO:0007068] synonym: "2.10 nine or more leaves unfolded in Triticeae" RELATED [GRO:0007068] synonym: "2.10 nine or more leaves unfolded in wheat" RELATED [GRO:0007068] synonym: "3.02-late whorl stage" RELATED [GRO:0007014] synonym: "3.2 late whorl stage in maize" RELATED [MaizeGDB:67357] synonym: "9 or more leaves unfolded" RELATED [] synonym: "9 rosette leaf in Arabidopsis" RELATED [TAIR:0000412] synonym: "9-11 leaves in maize" RELATED [MaizeGDB:67357] synonym: "9-leaf in maize" RELATED [MaizeGDB:67357] synonym: "BBCH growth stage 19" RELATED [ISBN:3826331524] synonym: "LP.09 nine or more leaves whorls visible" RELATED [SGN:0000021] synonym: "maize growth stage-3.2" RELATED [GRO:0007014] synonym: "nine rosette leaves" RELATED [] synonym: "ninth leaf unfolded" RELATED [] synonym: "Stage V8 in soybean" RELATED [SOY:0000023] synonym: "V9 in maize" RELATED [MaizeGDB:67357] synonym: "Zadok scale-19" RELATED [GRO:0007068] is_a: PO:0007133 ! leaf production [Term] id: PO:0007102 name: 5.04 40% of inflorescence emerged namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007103 name: LP.10 ten leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at ten nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "10 rosette leaf in Arabidopsis" RELATED [TAIR:0000413] synonym: "10-leaf in maize" RELATED [MaizeGDB:67357] synonym: "3.02-late whorl stage" RELATED [GRO:0007014] synonym: "9-11 leaves in maize" RELATED [MaizeGDB:67357] synonym: "maize growth stage-3.2" RELATED [GRO:0007014] synonym: "Stage V9 in soybean" RELATED [SOY:0000024] synonym: "ten rosette leaves" RELATED [] synonym: "V10 in maize" RELATED [MaizeGDB:67357] is_a: PO:0007133 ! leaf production [Term] id: PO:0007104 name: LP.15 fifteen leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at fifteen nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.15 14th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000029] synonym: "3.4 late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "3.4 late vegetative stage of maize" RELATED [GRO:0007016] synonym: "late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "maize growth stage-3.4" RELATED [GRO:0007016] synonym: "Stage V14 in soybean" RELATED [SOY:0000029] synonym: "V15 in maize" RELATED [MaizeGDB:67360] is_a: PO:0007133 ! leaf production [Term] id: PO:0007105 name: 5.06 60% of inflorescence emerged namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007106 name: LP.03 three leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at three nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "02-three leaf stage in sorghum" RELATED [GRO:0007126] synonym: "1-4 leaf stage in rice" RELATED [GRO:0007142] synonym: "1.03 2nd trifoliolate leaf unfolded in soybean" RELATED [SOY:0000017] synonym: "1.03-three to four leaves in maize" RELATED [GRO:0007010] synonym: "1.3 3-4 leaves in maize" RELATED [Maize:25331] synonym: "2.04-three leaves unfolded" RELATED [GRO:0007062] synonym: "3 rosette leaf in Arabidopsis" RELATED [TAIR:0000407] synonym: "3-leaf stage in maize" RELATED [Maize:25331] synonym: "BBCH growth stage 13" RELATED [ISBN:3826331524] synonym: "LP.03 three leaves visible in Solanaceae" RELATED [SGN:0000015] synonym: "maize growth stage-1.3" RELATED [GRO:0007010] synonym: "pre tillering" RELATED [GRO:0007142] synonym: "rice growth stage-2.1" RELATED [GRO:0007142] synonym: "sorghum growth stage-1" RELATED [GRO:0007126] synonym: "V2 stage in soybean" RELATED [SOY:0000017] synonym: "V3 in maize" RELATED [Maize:25331] synonym: "Zadok scale-13, Haun scale-2.+" RELATED [GRO:0007062] is_a: PO:0007133 ! leaf production [Term] id: PO:0007107 name: 5.08 80% of inflorescence emerged namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007108 name: SE.07 seven nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which seven nodes or seven internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.07 7 nodes/internodes visible in soybean" RELATED [SOY:0000056] synonym: "BBCH growth stage 37" RELATED [ISBN:3826331524] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007109 name: SE.99 maximum stem length reached namespace: plant_growth_and_development_stage def: "The stage at which maximum stem length is reached." [GR:ap] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.99 Maximum stem length reached in soybean" RELATED [SOY:0000066] synonym: "4.09-flag leaf ligule/collar just visible in barley" RELATED [GRO:0007089] synonym: "4.09-flag leaf ligule/collar just visible in oat" RELATED [GRO:0007089] synonym: "4.09-flag leaf ligule/collar just visible in wheat" RELATED [GRO:0007089] synonym: "flag leaf fully unrolled" RELATED [] synonym: "flag leaf stage" RELATED [] synonym: "flag leaf stage in sorghum" RELATED [GRO:0007089] synonym: "ligule just visible" RELATED [] synonym: "sorghum growth stage-5" RELATED [GRO:0007089] synonym: "Zadok scale-39, Feekes scale-9" RELATED [GRO:0007089] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007110 name: 2.09 main shoot and axillary shoots visible at nine or more nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at nine nodes or more are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.09 Main shoot and axillary shoots visible at 9 or more nodes in soybean" RELATED [SOY:0000048] synonym: "2.09 main shoot and axillary shoots visible at nine or more nodes in Solanaceae" RELATED [SGN:0000031] synonym: "3.1-maximum tillering" RELATED [GRO:0007144] synonym: "3.10-main shoot and nine or more tillers in Triticeae" RELATED [GRO:0007079] synonym: "BBCH growth stage 29" RELATED [ISBN:3826331524] synonym: "main shoot and 9 or more tiller" RELATED [GRO:0007079] synonym: "main shoot and nine or more tillers in barley" RELATED [] synonym: "main shoot and nine or more tillers in oat" RELATED [] synonym: "main shoot and nine or more tillers in wheat" RELATED [] synonym: "maximum number of tillers detectable in" RELATED [] synonym: "maximum number of tillers visible" RELATED [] synonym: "maximum number of tillers visible in rice" RELATED [] synonym: "nine or more axillary shoots detectable" RELATED [] synonym: "Zadok scale-29" RELATED [GRO:0007079] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007111 name: SE.12 twelve nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which twelve nodes or twelve internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.12 12 nodes/internodes visible in soybean" RELATED [SOY:0000061] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007112 name: 1 main shoot growth namespace: plant_growth_and_development_stage def: "The stage at which vegetative structures are being produced by SAM." [Poc:curators] comment: In monocots each leaf stage is defined according to the uppermost leaf whose collar is visible (Handbook of plant and crop physiology). synonym: "01-seedling stage of maize" RELATED [GRO:0007007] synonym: "02-seedling growth of barley" RELATED [GRO:0007058] synonym: "02-seedling growth of oat" RELATED [GRO:0007058] synonym: "02-seedling growth of wheat" RELATED [GRO:0007058] synonym: "02-seedling stage of rice" RELATED [GRO:0007047] synonym: "1 main shoot growth in Solanaceae" RELATED [SGN:0000011] synonym: "1 seedling in maize" RELATED [MaizeGDB:1863] synonym: "BBCH principal growth stage 1" RELATED [ISBN:3826331524] synonym: "maize growth stage-1.1" RELATED [GRO:0007007] synonym: "sorghum principal growth stage 1" RELATED [GRO:0007126] is_a: PO:0007134 ! A vegetative growth [Term] id: PO:0007113 name: rosette growth namespace: plant_growth_and_development_stage def: "Stages of growth based on expansion of the rosette in Arabidopsis." [TAIR:ki] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "rosette growth in Arabidopsis" RELATED [TAIR:0000042] is_a: PO:0007112 ! 1 main shoot growth [Term] id: PO:0007114 name: SE.11 eleven nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which eleven nodes or eleven internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.11 11 nodes/internodes visible in soybean" RELATED [SOY:0000060] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007115 name: LP.04 four leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at four nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "02-tassel initiation in maize" RELATED [GRO:0007011] synonym: "03-four leaf stage in sorghum" RELATED [GRO:0007143] synonym: "1-4 leaf stage in rice" RELATED [GRO:0007142] synonym: "1.03-three to four leaves in maize" RELATED [GRO:0007010] synonym: "1.04 3rd trifoliolate leaf unfolded in soybean" RELATED [SOY:0000018] synonym: "2 tassel initiation/early whorl stage in maize" RELATED [MaizeGDB:67306] synonym: "2.05-four leaves unfolded in Triticeae" RELATED [GRO:0007063] synonym: "4 leaves unfolded" RELATED [] synonym: "4 rosette leaf in Arabidopsis" RELATED [TAIR:0000399] synonym: "4-6 leaves in maize" RELATED [MaizeGDB:67306] synonym: "BBCH growth stage 14" RELATED [ISBN:3826331524] synonym: "early whorl stage in maize" RELATED [MaizeGDB:67306] synonym: "four rosette leaves" RELATED [] synonym: "fourth leaf unfolded" RELATED [] synonym: "LP.04 four leaves visible in Solanaceae" RELATED [SGN:0000016] synonym: "maize growth stage-2" RELATED [GRO:0007011] synonym: "pre tillering" RELATED [GRO:0007142] synonym: "rice growth stage-2.1" RELATED [GRO:0007142] synonym: "sorghum growth stage-2" RELATED [GRO:0007143] synonym: "Stage V3 in soybean" RELATED [SOY:0000018] synonym: "tassel differentiation in maize" RELATED [MaizeGDB:67306] synonym: "tassel initiation in maize" RELATED [MaizeGDB:67306] synonym: "V4 in maize" RELATED [MaizeGDB:67306] synonym: "Zadok scale-14, Haun scale-3.+" RELATED [GRO:0007063] is_a: PO:0007133 ! leaf production [Term] id: PO:0007116 name: LP.11 eleven leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at eleven nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.11 10th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000025] synonym: "11 rosette leaves in Arabidopsis" RELATED [TAIR:0000414] synonym: "3.02-late whorl stage in maize" RELATED [GRO:0007014] synonym: "3.2 late whorl stage of maize" RELATED [GRO:0007014] synonym: "9-11 leaves in maize" RELATED [MaizeGDB:67357] synonym: "eleven rosette leaves" RELATED [] synonym: "late whorl stage of maize" RELATED [GRO:0007014] synonym: "maize growth stage-3.2" RELATED [GRO:0007014] synonym: "Stage V10 in soybean" RELATED [SOY:0000025] synonym: "V11 in maize" RELATED [MaizeGDB:67357] is_a: PO:0007133 ! leaf production [Term] id: PO:0007117 name: SE.02 two nodes or internodes visible namespace: plant_growth_and_development_stage def: "The stage at which two nodes or two internodes are visible." [GR:pj] comment: A measure of vegetative growth, but leaf production is to be preferred. synonym: "3.02 2 nodes/internode visible in soybean" RELATED [SOY:0000051] synonym: "4.03-second node detectable in barley" RELATED [GRO:0007083] synonym: "4.03-second node detectable in oat" RELATED [GRO:0007083] synonym: "4.03-second node detectable in wheat" RELATED [GRO:0007083] synonym: "BBCH growth stage 32" RELATED [ISBN:3826331524] synonym: "maize growth stage-3.1" RELATED [GRO:0007013] synonym: "Zadok scale-32, Feekes scale-7" RELATED [GRO:0007083] is_a: PO:0007089 ! stem elongation [Term] id: PO:0007118 name: 2.06 main shoot and axillary shoots visible at six nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at six nodes are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.06 Main shoot and axillary shoots visible at 6 nodes in soybean" RELATED [SOY:0000045] synonym: "2.06 main shoot and axillary shoots visible at six nodes in Solanaceae" RELATED [SGN:0000028] synonym: "3.07-main shoot and six tillers" RELATED [GRO:0007076] synonym: "BBCH growth stage 26" RELATED [ISBN:3826331524] synonym: "main shoot and 6 tillers" RELATED [] synonym: "main shoot and six tillers in barley" RELATED [GRO:0007076] synonym: "main shoot and six tillers in oat" RELATED [GRO:0007076] synonym: "main shoot and six tillers in wheat" RELATED [GRO:0007076] synonym: "sixth axillary shoot detectable" RELATED [] synonym: "sixth tiller detectable" RELATED [] synonym: "Zadok scale-26, Feekes scale-3" RELATED [GRO:0007076] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007119 name: LP.16 sixteen leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at sixteen nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.16 15th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000030] synonym: "16 rosette leaf in Arabidopsis" RELATED [TAIR:0000036] synonym: "3.04-late vegetative" RELATED [GRO:0007016] synonym: "3.4 late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "3.4 late vegetative stage of maize" RELATED [GRO:0007016] synonym: "late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "late vegetative stage of maize" RELATED [GRO:0007016] synonym: "maize growth stage-3.4" RELATED [GRO:0007016] synonym: "Stage V15 in soybean" RELATED [SOY:0000030] synonym: "V16 in maize" RELATED [MaizeGDB:67360] is_a: PO:0007133 ! leaf production [Term] id: PO:0007120 name: LP.19 nineteen leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at nineteen nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "1.19 18th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000033] synonym: "3.04-late vegetative" RELATED [GRO:0007016] synonym: "3.4 late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "3.4 late vegetative stage of maize" RELATED [GRO:0007016] synonym: "late vegetative in maize" RELATED [MaizeGDB:67360] synonym: "late vegetative stage of maize" RELATED [GRO:0007016] synonym: "maize growth stage-3.4" RELATED [GRO:0007016] synonym: "Stage V18 in soybean" RELATED [SOY:0000033] synonym: "V19 in maize" RELATED [MaizeGDB:67360] is_a: PO:0007133 ! leaf production [Term] id: PO:0007121 name: 6.01 10% of flowers open namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007122 name: 2.07 main shoot and axillary shoots visible at seven nodes namespace: plant_growth_and_development_stage def: "The stage at which main shoot and axillary shoots at seven nodes are visible." [GR:ap] comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. synonym: "2.07 Main shoot and axillary shoots visible at 7 nodes in soybean" RELATED [SOY:0000046] synonym: "2.07 main shoot and axillary shoots visible at seven nodes in Solanaceae" RELATED [SGN:0000029] synonym: "3.08-main shoot and seven tillers" RELATED [GRO:0007077] synonym: "BBCH growth stage 27" RELATED [ISBN:3826331524] synonym: "main shoot and 7 tillers" RELATED [] synonym: "main shoot and seven tillers in barley" RELATED [GRO:0007077] synonym: "main shoot and seven tillers in oat" RELATED [GRO:0007077] synonym: "main shoot and seven tillers in wheat" RELATED [GRO:0007077] synonym: "main shoot and seventh tiller visible" RELATED [] synonym: "seventh axillary shoot detectable" RELATED [] synonym: "seventh tiller detectable" RELATED [] synonym: "Zadok scale-27" RELATED [GRO:0007077] is_a: PO:0007073 ! 2 formation of axillary shoot [Term] id: PO:0007123 name: LP.06 six leaves visible namespace: plant_growth_and_development_stage def: "The stage at which leaves at six nodes, other than the cotyledonary node, are visible above ground." [GR:ap] comment: The leaves can be a single leaf, two, or whorls of leaves at each node. synonym: "03-tillering stage in rice" RELATED [GRO:0007049] synonym: "1.06 5th trifoliolate leaf unfolded in soybean" RELATED [SOY:0000020] synonym: "2 tassel initiation/early whorl stage in maize" RELATED [MaizeGDB:67306] synonym: "2.07-six leaves unfolded in Triticeae" RELATED [GRO:0007065] synonym: "3.01-ear initiation in maize" RELATED [GRO:0007013] synonym: "3.1 ear initiation/mid-whorl stage in maize" RELATED [MaizeGDB:67356] synonym: "6 leaves unfolded" RELATED [] synonym: "6 rosette leaf in Arabidopsis" RELATED [TAIR:0000409] synonym: "6-8 leaves in maize" RELATED [MaizeGDB:67356] synonym: "6-leaf in maize" RELATED [MaizeGDB:67356] synonym: "BBCH growth stage 16" RELATED [ISBN:3826331524] synonym: "ear initiation in maize" RELATED [MaizeGDB:67356] synonym: "early whorl stage in maize" RELATED [MaizeGDB:67306] synonym: "LP.06 six leaves visible in Solanaceae" RELATED [SGN:0000018] synonym: "maize growth stage-3.1" RELATED [GRO:0007012] synonym: "mid-whorl stage in maize" RELATED [MaizeGDB:67356] synonym: "rice growth stage-3" RELATED [GRO:0007049] synonym: "six rosette leaves" RELATED [] synonym: "sixth leaf unfolded" RELATED [] synonym: "Stage V5 in soybean" RELATED [SOY:0000020] synonym: "Triticeae six leaves unfolded" RELATED [GRO:0007065] synonym: "V6 in maize" RELATED [MaizeGDB:67306] synonym: "Zadok scale-16, Haun scale-5.+" RELATED [GRO:0007065] is_a: PO:0007133 ! leaf production [Term] id: PO:0007124 name: 6.03 30% of flowers open namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007125 name: 6.04 40% of flowers open namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007126 name: 7.02 fruit size 20% namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007127 name: 7.04 fruit size 40% namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] synonym: "7.2 milk stage/embryo 2 in maize" RELATED [MaizeGDB:67373] is_obsolete: true [Term] id: PO:0007128 name: 7.06 fruit size 60% namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007129 name: 7.08 fruit size 80% namespace: plant_growth_and_development_stage def: "OBSOLETE" [GR:ap] is_obsolete: true [Term] id: PO:0007130 name: B reproductive growth namespace: plant_growth_and_development_stage def: "Stage of growth when reproductive structures are being produced." [Poc:curators] synonym: "B reproductive growth in Solanaceae" RELATED [SGN:0000032] synonym: "B-reproductive stage in rice" RELATED [GRO:0007140] synonym: "reproductive in Arabidopsis" RELATED [TAIR:0000306] is_a: PO:0007033 ! whole plant growth stage [Term] id: PO:0007131 name: seedling growth namespace: plant_growth_and_development_stage def: "Growth of embryo after imbibition up to the development of the first adult leaves." [Poc:curators] synonym: "seedling growth in Solanaceae" RELATED [SGN:0000005] synonym: "seedling in Arabidopsis" RELATED [TAIR:0000027] relationship: part_of PO:0007057 ! 0 germination [Term] id: PO:0007132 name: D dormancy namespace: plant_growth_and_development_stage def: "A suspension of physiological activity that can be reactivated once it is broken." [Poc:curators] synonym: "10.05-seed dormant in barley" RELATED [GRO:0007119] synonym: "10.05-seed dormant in oat" RELATED [GRO:0007119] synonym: "10.05-seed dormant in Triticeae" RELATED [GRO:0007119] synonym: "10.05-seed dormant in wheat" RELATED [GRO:0007119] synonym: "10.06-viable seed germination in barley" RELATED [GRO:0007120] synonym: "10.06-viable seed germination in oat" RELATED [GRO:0007120] synonym: "10.06-viable seed germination in Triticeae" RELATED [GRO:0007120] synonym: "10.06-viable seed germination in wheat" RELATED [GRO:0007120] synonym: "10.07-seed not dormant in barley" RELATED [GRO:0007121] synonym: "10.07-seed not dormant in oat" RELATED [GRO:0007121] synonym: "10.07-seed not dormant in Triticeae" RELATED [GRO:0007121] synonym: "10.07-seed not dormant in wheat" RELATED [GRO:0007121] synonym: "10.08-secondary dormancy induced in barley" RELATED [GRO:0007122] synonym: "10.08-secondary dormancy induced in oat" RELATED [GRO:0007122] synonym: "10.08-secondary dormancy induced in Triticeae" RELATED [GRO:0007122] synonym: "10.08-secondary dormancy induced in wheat" RELATED [GRO:0007122] synonym: "10.09-secondary dormancy lost in barley" RELATED [GRO:0007123] synonym: "10.09-secondary dormancy lost in oat" RELATED [GRO:0007123] synonym: "10.09-secondary dormancy lost in Triticeae" RELATED [GRO:0007123] synonym: "10.09-secondary dormancy lost in wheat" RELATED [GRO:0007123] synonym: "D dormancy in Solanaceae" RELATED [SGN:0000053] is_a: PO:0007033 ! whole plant growth stage [Term] id: PO:0007133 name: leaf production namespace: plant_growth_and_development_stage def: "The stage at which the leaves produced by SAM are visible above the ground in a seedling or mature plant." [Poc:curators] comment: This stage is recommended over rosette growth or stem elongation as it is most easily observed and least ambiguous. synonym: "leaf production in Solanaceae" RELATED [SGN:0000012] is_a: PO:0007112 ! 1 main shoot growth [Term] id: PO:0007134 name: A vegetative growth namespace: plant_growth_and_development_stage def: "Stage of growth when vegetative structures are being produced." [Poc:curators] synonym: "A vegetative growth in Solanaceae" RELATED [SGN:0000002] synonym: "A-vegetative stage in rice" RELATED [GRO:0007139] synonym: "vegetative in Arabidopsis" RELATED [TAIR:0000305] is_a: PO:0007033 ! whole plant growth stage [Term] id: PO:0007135 name: 4 growth directionality namespace: plant_growth_and_development_stage def: "The stage involved in the directionality of expansion growth." [GR:cwt] is_a: PO:0007039 ! leaf trichome development stage [Term] id: PO:0007501 name: root cap formation namespace: plant_growth_and_development_stage def: "The stage at which the root cap becomes evident." [GR:ap] comment: The number and origin of root cap initials that form the root cap varies among species. The root cap initials become independent from the more internally located root meristem cells by an increase in the thickness of the cell wall that separates them. synonym: "root cap formation in crown root." RELATED [] synonym: "root cap formation in lateral root." RELATED [] synonym: "root cap formation in primary root." RELATED [] is_a: PO:0007525 ! 3 establishment of tissue systems [Term] id: PO:0007503 name: A2.1 root intials differntiation of primary roots namespace: plant_growth_and_development_stage def: "OBSOLETE. The root initials divide repeatedly and add more cells" [GR:ap] comment: This term has been obsoleted to keep the structure simple. is_obsolete: true [Term] id: PO:0007504 name: crown root primordium formation namespace: plant_growth_and_development_stage def: "The stage at which the initial cells of crown root primordium are formed in the innermost ground meristem cells by one or two periclinal divisions." [GR:ap] comment: Crown root primordia formed endogenously opposite the collateral bundles in maize. is_a: PO:0007505 ! 1 root primordium formation [Term] id: PO:0007505 name: 1 root primordium formation namespace: plant_growth_and_development_stage def: "The stage at which root primordium originates and develops at specific locations in embryonic and post embryonic roots." [GR:ap] is_a: PO:0007520 ! root development stages [Term] id: PO:0007506 name: primary root primordium formation namespace: plant_growth_and_development_stage def: "The stage at which a group of cells or initials that will differentiate into the primary root become organized in the embryo ." [GR:ap] is_a: PO:0007505 ! 1 root primordium formation [Term] id: PO:0007509 name: root vascular cylinder differentiation namespace: plant_growth_and_development_stage def: "The stage at which the root vascular cylinder becomes evident." [GR:ap] comment: The first identifiable region in the differentiating vascular cylinder is the pericycle. In the xylem the differentiation of the tracheary elements begins in a centrifugal direction but is completed in the centripetal direction. The first phloem elements mature before the first xylem elements. is_a: PO:0007525 ! 3 establishment of tissue systems [Term] id: PO:0007510 name: root emergence namespace: plant_growth_and_development_stage def: "The stage at which the fully formed root emerges." [GR:ap] is_a: PO:0001031 ! 4 root elongation [Term] id: PO:0007511 name: lateral root primordium formation namespace: plant_growth_and_development_stage def: "This stage at which the transverse divisions in pericycle cells form the initials of the lateral root primordium." [GR:ap] is_a: PO:0007505 ! 1 root primordium formation [Term] id: PO:0007512 name: A2 root initials differentiation stage namespace: plant_growth_and_development_stage def: "OBSOLETE. The root initials differentiate by cell division and cell expansion. " [GR:ap] comment: Crown root stages are based on rice plant. This term has been obsoleted to keep the structure simple. is_obsolete: true [Term] id: PO:0007513 name: root cortex differentiation namespace: plant_growth_and_development_stage def: "The stage at which the root cortex becomes evident." [GR:ap] comment: Repetitive periclinal divisions and radial enlargement of cells form the cortex layers, the innermost layers become the endodermis with the differentiation of casparian strips. synonym: "cortex differentiation of crown root." RELATED [] synonym: "cortex differentiation of lateral root" RELATED [] synonym: "cortex differentiation of primary root." RELATED [] is_a: PO:0007525 ! 3 establishment of tissue systems [Term] id: PO:0007514 name: B3 crown root meristem formation namespace: plant_growth_and_development_stage def: "OBSOLETE. The stage at which the meristem of the crown root becomes evident." [GR:ap] is_obsolete: true [Term] id: PO:0007516 name: root epidermal differentiation namespace: plant_growth_and_development_stage def: "The stage at which the root epidermis becomes evident." [GR:ap] comment: Root hairs come to full development beyond the region of elongation zone, approximately at the level where the xylem begins to mature. synonym: "epidermal differentiation of lateral root." RELATED [] synonym: "epidermal differentiation of primary root" RELATED [] synonym: "epidermial differentiation of crown root." RELATED [] is_a: PO:0007525 ! 3 establishment of tissue systems [Term] id: PO:0007517 name: lateral root emergence namespace: plant_growth_and_development_stage def: "The stage at which the lateral root emerges." [GR:ap] comment: Starch grains can be seen in the root cap after emergence. is_a: PO:0007510 ! root emergence [Term] id: PO:0007518 name: crown root emergence namespace: plant_growth_and_development_stage def: "The stage at which the crown root emerges." [GR:ap] comment: Crown root stages are based on rice plant. is_a: PO:0007510 ! root emergence [Term] id: PO:0007519 name: 5 root hair formation namespace: plant_growth_and_development_stage def: "The stage at which the root hairs becomes evident." [GR:ap] synonym: "Benfey's stage 3 of root development" RELATED [] is_a: PO:0007520 ! root development stages [Term] id: PO:0007520 name: root development stages namespace: plant_growth_and_development_stage alt_id: PO:0007011 def: "Stages of development of a root defined by characteristic morphological, structural, histological or other visible features." [GR:ap] comment: At present the stages are described for primary, lateral and crown roots and stages for adventitious root formed by wounding or hormone treatment is not described. Finer resolution of root stages has been kept in the obsolete node as they are not consistently used in the consulted literature. These terms will be reintroduced into the ontology when there is a specific user request. synonym: "root development stage" RELATED [] is_a: PO:0007021 ! plant structure development stage [Term] id: PO:0007521 name: C3.1 metaxylem differentiation of root. namespace: plant_growth_and_development_stage def: "OBSOLETE. Differentiation begins with the enlargement and vacuolation of the tracheary elements of the metaxylem." [GR:ap] comment: These stages are based on Arabidopsis plant. This term has been obsoleted to keep the structure simple. synonym: "metaxylem differentiation of crown root" RELATED [] synonym: "metaxylem differentiation of lateral root" RELATED [] synonym: "metaxylem differentiation of primary root" RELATED [] is_obsolete: true [Term] id: PO:0007523 name: establishment of initial cells namespace: plant_growth_and_development_stage def: "OBSOLETE. The root initial cells are established." [GR:ap] is_obsolete: true [Term] id: PO:0007524 name: B1 primary root meristem formation namespace: plant_growth_and_development_stage def: "OBSOLETE. The stage at which the meristem of the primary root becomes evident." [GR:ap] is_obsolete: true [Term] id: PO:0007525 name: 3 establishment of tissue systems namespace: plant_growth_and_development_stage def: "The stage at which distinct tissues become organized." [GR:ap] synonym: "Benfey's stage 1 of root development" RELATED [] synonym: "cell differentiation stage of root development" RELATED [] synonym: "establishment of fundamental organization in adventitious root" RELATED [] synonym: "establishment of fundamental organization in primary root." RELATED [] synonym: "establishment of fundamental organization lateral root." RELATED [] is_a: PO:0007520 ! root development stages [Term] id: PO:0007526 name: F2 root hair elongation namespace: plant_growth_and_development_stage def: "OBSOLETE. The stage at which the root hairs are fully elongated." [GR:ap] is_obsolete: true [Term] id: PO:0007527 name: 2 root meristem formation namespace: plant_growth_and_development_stage def: "The stage at which the root meristem becomes evident." [GR:ap] comment: Characteristic differences in meristem organization have been related to taxonomic groups. Terms for developmental zones formation are available in the obsolete node, and they will be reintroduced in the ontology when there is a specific user request for them. is_a: PO:0007520 ! root development stages [Term] id: PO:0007528 name: A2.2 root initials differentiation of lateral roots namespace: plant_growth_and_development_stage def: "OBSOLETE. Radial expansion followed by subsequent periclinal divisions forms the pericycle-derived tissues." [GR:ap] comment: This term has been obsoleted to keep the structure simple. is_obsolete: true [Term] id: PO:0007529 name: E emerged root elongation namespace: plant_growth_and_development_stage def: "OBSOLETE. The stage at which the emerged root starts to elongate. " [GR:ap] synonym: "emerged crown root elongation" RELATED [] synonym: "emerged lateral root elongation" RELATED [] synonym: "emrged primary root elongation" RELATED [] is_obsolete: true [Term] id: PO:0007530 name: A2.3 founder cell derivatives of lateral root namespace: plant_growth_and_development_stage def: "OBSOLETE. Radial expansion followed by subsequent periclinal divisions forms the isodiametric founder cell tissues." [GR:ap] comment: This term has been obsoleted to keep the structure simple. is_obsolete: true [Term] id: PO:0007531 name: F1 root hair initiation namespace: plant_growth_and_development_stage def: "OBSOLETE. The stage at which the roots hairs are initiated." [GR:ap] is_obsolete: true [Term] id: PO:0007532 name: obsolete plant growth and development terms namespace: plant_growth_and_development_stage is_obsolete: true [Term] id: PO:0007533 name: C3.3 maturation of protoxylem elements in root. namespace: plant_growth_and_development_stage def: "OBSOLETE. The first protoxylem elements next to the pericycle develop secondary walls and mature." [GR:ap] comment: This term has been obsoleted to keep the structure simple. synonym: "maturation of protoxylem elements in crown root" RELATED [] synonym: "maturation of protoxylem elements in lateral root" RELATED [] synonym: "maturation of protoxylem elements in primary root" RELATED [] is_obsolete: true [Term] id: PO:0007534 name: A2.4 root initials differentiation of crown roots namespace: plant_growth_and_development_stage def: "OBSOLETE. Initial cells of crown root primordium divide anticlinally and periclinally to form epidermis-endodermis initial, vascular-cylinder initial and root cap initial." [GR:ap] comment: Crown root stages are based on rice plant. This term has been obsoleted to keep the structure simple. is_obsolete: true [Term] id: PO:0007535 name: A1 root initials formation stage namespace: plant_growth_and_development_stage def: "OBSOLETE. After the formation of the apical-basal axis in the young embryo, the central and basal portion give rise to the root meristem. " [GR:ap] comment: Endogenously formed embryonic roots are exclusive to Poaceae.\nThis term has been obsoleted to keep the structure simple. is_obsolete: true [Term] id: PO:0007536 name: root primordium visible namespace: plant_growth_and_development_stage def: "OBSOLETE. the root primordium is visbile" [GR:ap] is_obsolete: true [Term] id: PO:0007537 name: C3.2 maturation of phloem elements in root. namespace: plant_growth_and_development_stage def: "OBSOLETE. The first phloem elements matures." [GR:ap] comment: This term has been obsoleted to keep the structure simple. synonym: "maturation phloem elements of crown root." RELATED [] synonym: "maturation phloem elements of lateral root." RELATED [] synonym: "maturation phloem elements of primary root." RELATED [] is_obsolete: true [Term] id: PO:0007539 name: B2 lateral root meristem formation namespace: plant_growth_and_development_stage def: "OBSOLETE. The stage at which the meristem of the lateral root becomes evident." [GR:ap] is_obsolete: true [Term] id: PO:0007600 name: 3 floral organ development stages namespace: plant_growth_and_development_stage def: "Stages of development of floral organs defined by characteristic morphological, structural, histological or other visible features." [POC:curators] is_a: PO:0007615 ! flower development stages [Term] id: PO:0007601 name: 1 floral meristem visible namespace: plant_growth_and_development_stage def: "Stage of flower development marked by the emergence of the floral meristem on the flank of the inflorescence meristem." [POC:curators] synonym: "stage 1 flower in Arabidopsis" RELATED [] is_a: PO:0007615 ! flower development stages [Term] id: PO:0007602 name: 2 floral meristem notched namespace: plant_growth_and_development_stage def: "Stage of floral development that begins when the floral meristem becomes demarcated from the inflorescence meristem by a slight indentation." [POC:curators] synonym: "stage 2 flower in Arabidopsis" RELATED [] is_a: PO:0007615 ! flower development stages [Term] id: PO:0007603 name: calyx developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the calyx defined by characteristic morphological, structural, histological or other visible features." [POC:curators] is_a: PO:0007600 ! 3 floral organ development stages [Term] id: PO:0007604 name: corolla developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the corolla defined by characteristic morphological, structural, histological or other visible features." [POC:curators] is_a: PO:0007600 ! 3 floral organ development stages [Term] id: PO:0007605 name: androecium developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the androecium defined by characteristic morphological, structural, histological or other visible features." [POC:curators] is_a: PO:0007600 ! 3 floral organ development stages [Term] id: PO:0007606 name: gynoecium developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the gynoecium defined by characteristic morphological, structural, histological or other visible features." [POC:curators] is_a: PO:0007600 ! 3 floral organ development stages [Term] id: PO:0007607 name: sepal primordium visible namespace: plant_growth_and_development_stage def: "Stage of calyx development that begins when the sepal primordia arise." [POC:curators] synonym: "stage 3 flower in Arabidopsis" RELATED [] is_a: PO:0007603 ! calyx developmental stages [Term] id: PO:0007608 name: petal primordium visible namespace: plant_growth_and_development_stage def: "Stage of corolla development that begins when the petal or petal-stamen primordia arise." [POC:curators] synonym: "stage 5 flower in Arabidopsis" RELATED [] is_a: PO:0007604 ! corolla developmental stages [Term] id: PO:0007609 name: sepals 50% of final size namespace: plant_growth_and_development_stage def: "OBSOLETE. 50% of the absolute size of the sepals." [POC:curators] is_obsolete: true [Term] id: PO:0007610 name: sepals 100% of final size namespace: plant_growth_and_development_stage def: "OBSOLETE. 100% of the absolute size of the sepals." [POC:curators] is_obsolete: true [Term] id: PO:0007611 name: petal differentiation and expansion stage namespace: plant_growth_and_development_stage def: "Stage of corolla development defined by differentiation and expansion of petal." [POC:fz] synonym: "stage 10 flower in Arabidopsis" RELATED [] synonym: "stage 12 flower in Arabidopsis" RELATED [] synonym: "stage 9 flower in Arabidopsis" RELATED [] is_a: PO:0007604 ! corolla developmental stages [Term] id: PO:0007612 name: fully expanded petal namespace: plant_growth_and_development_stage def: "Stage of corolla development when petal is fully expanded." [POC:fz] is_a: PO:0007604 ! corolla developmental stages [Term] id: PO:0007613 name: stamen primordium visible namespace: plant_growth_and_development_stage def: "Stage of androecium development that begins when the stamens or petal-stamen primordia arise." [POC:curators] synonym: "stage 7 flower in Arabidopsis" RELATED [] is_a: PO:0007605 ! androecium developmental stages [Term] id: PO:0007615 name: flower development stages namespace: plant_growth_and_development_stage def: "Stages of development of a flower defined by characteristic morphological, structural, histological or other visible features." [POC:curators] synonym: "flower development in Arabidopsis" RELATED [] is_a: PO:0007021 ! plant structure development stage [Term] id: PO:0007616 name: 4 anthesis namespace: plant_growth_and_development_stage def: "The phase of a flower when pollen is presented and/or the stigma is receptive." [APWeb:glossary] synonym: "stage 13 flower in Arabidopsis" RELATED [] synonym: "stage 14 flower in Arabidopsis" RELATED [] synonym: "stage 15 flower in Arabidopsis" RELATED [] is_a: PO:0007615 ! flower development stages [Term] id: PO:0007617 name: 5 post anthesis namespace: plant_growth_and_development_stage def: "The phase of a flower after the pollen is presented and/or the stigma is receptive." [POC:curators] synonym: "stage 16 flower in Arabidopsis" RELATED [] is_a: PO:0007615 ! flower development stages [Term] id: PO:0007618 name: carpel primordium visible namespace: plant_growth_and_development_stage def: "Stage of gynoecium development that begins when the carpel primordia arise." [POC:curators] is_a: PO:0007606 ! gynoecium developmental stages [Term] id: PO:0007619 name: ovule developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the ovule defined by characteristic morphological, structural, histological or other visible features." [POC:curators] synonym: "ovule development in Arabidopsis" RELATED [] is_a: PO:0007606 ! gynoecium developmental stages [Term] id: PO:0007620 name: ovule primordium visible namespace: plant_growth_and_development_stage def: "Stage of ovule development that begins when the ovule primordia arise." [POC:curators] synonym: "ovule stage 1-I in Arabidopsis" RELATED [] is_a: PO:0007619 ! ovule developmental stages [Term] id: PO:0007621 name: megagametophyte developmental stages namespace: plant_growth_and_development_stage def: "Stages of development of the megagametophyte." [POC:curators] comment: Although megaspore and megagametophyte development are normally separate, one spore producing one gametophyte, in some flowering plants a single gametophyte may be produced from two or four spores. is_a: PO:0007619 ! ovule developmental stages [Term] id: PO:0007622 name: integument initiation stage namespace: plant_growth_and_development_stage def: "Stage of ovule development that begins when the integument primordia are visible." [POC:curators] synonym: "ovule stage 2-II in Arabidopsis" RELATED [] synonym: "ovule stage 2-III in Arabidopsis" RELATED [] is_a: PO:0004504 ! ovule differentiation and expansion [Term] id: PO:0007623 name: A megaspore mother cell enlarges namespace: plant_growth_and_development_stage def: "The stage of megagametophyte development when the megaspore mother cell enlarges." [POC:curators] synonym: "ovule stage 2-I in Arabidopsis" RELATED [] is_a: PO:0007621 ! megagametophyte developmental stages [Term] id: PO:0007624 name: B meiosis of megaspore mother cell namespace: plant_growth_and_development_stage def: "The stage of megagametophyte development when the megaspore mother cell undergoes meiosis." [POC:curators] synonym: "ovule stage 2-IV in Arabidopsis" RELATED [] is_a: PO:0007621 ! megagametophyte developmental stages [Term] id: PO:0007625 name: C tetrad of megaspores namespace: plant_growth_and_development_stage def: "The product of meiosis of the megaspore mother cell." [POC:curators] synonym: "ovule stage 2-V in Arabidopsis" RELATED [] is_a: PO:0007621 ! megagametophyte developmental stages [Term] id: PO:0007626 name: D megaspore degeneration namespace: plant_growth_and_development_stage def: "The stage of megagametophyte development when non-functional megaspores degenerate." [POC:curators] comment: In some plants more than one megaspore contributes to the megametophyte. synonym: "ovule stage 3-I in Arabidopsis" RELATED [] is_a: PO:0007621 ! megagametophyte developmental stages [Term] id: PO:0007627 name: E two nucleate megagametophyte namespace: plant_growth_and_development_stage def: "The stage of megagametophyte development when there are two nuclei." [POC:curators] synonym: "ovule stage 3-II in Arabidopsis" RELATED [] is_a: PO:0007621 ! megagametophyte developmental stages [Term] id: PO:0007628 name: F four nucleate megagametophyte namespace: plant_growth_and_development_stage def: "The stage of megagametophyte development when there are four nuclei." [POC:curators] synonym: "ovule stage 3-IV in Arabidopsis" RELATED [] is_a: PO:0007621 ! megagametophyte developmental stages [Term] id: PO:0007629 name: G eight nucleate megagametophyte namespace: plant_growth_and_development_stage def: "The stage of megagametophyte development when there are eight nuclei." [POC:curators] comment: Some plants do not form an eight nucleate megametophyte. synonym: "ovule stage 3-V in Arabidopsis" RELATED [] is_a: PO:0007621 ! megagametophyte developmental stages [Term] id: PO:0007631 name: embryo development stages namespace: plant_growth_and_development_stage alt_id: PO:0007020 def: "Stages of development of the embryo." [TAIR:ki] synonym: "embryo development stage" RELATED [] synonym: "embryonic in Arabidopsis" RELATED [] is_a: PO:0001170 ! seed development stages [Term] id: PO:0007632 name: seed maturation stage namespace: plant_growth_and_development_stage def: "Stage during which the seed storage products (storage proteins, lipids and starch) are being accumulated, either in the cotyledons or in the endosperm. Also, LEA proteins are accumulated and subsequentially, desiccation tolerant state is reached at the end of this stage." [TAIR:ki] synonym: "seed maturation in Arabidopsis" RELATED [] is_a: PO:0001170 ! seed development stages [Term] id: PO:0007633 name: endosperm development stages namespace: plant_growth_and_development_stage def: "Stages of development of the endosperm." [TAIR:ki] is_a: PO:0001170 ! seed development stages [Term] id: PO:0008001 name: fruit distal end namespace: plant_structure def: "The end distal from the fruit pedicel." [(SGN:nm), GR:ap] subset: Angiosperm subset: Tomato synonym: "blossom end" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009001 ! fruit [Term] id: PO:0008002 name: fruit proximal end namespace: plant_structure def: "The stem end of the fruit." [(SGN:nm), GR:ap] subset: Angiosperm subset: Tomato synonym: "fruit shoulders" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009001 ! fruit [Term] id: PO:0008003 name: fruit vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a fruit." [GR:ap, POC:rw] subset: Arabidopsis subset: Maize subset: Poaceae subset: Rice subset: Tomato is_a: PO:0000034 ! vascular system relationship: part_of PO:0009001 ! fruit [Term] id: PO:0008004 name: fruit aleurone layer namespace: plant_structure def: "An aleurone layer of the grass caryopsis, its cells being characterized by presence of protein bodies containing seed storage proteins." [GR:ap] xref: OBO_SF_PO:2903966 is_a: PO:0005360 ! aleurone layer relationship: part_of PO:0009001 ! fruit [Term] id: PO:0008005 name: fruit nucellus namespace: plant_structure def: "A nucellus in the grass caryopsis." [GR:ap] subset: Poaceae subset: Rice xref: OBO_SF_PO:2903966 is_a: PO:0020020 ! nucellus relationship: part_of PO:0009001 ! fruit [Term] id: PO:0008006 name: nucellar epidermis namespace: plant_structure def: "A portion of plant tissue that is the morphologically distinct outer layer of the nucellus." [GR:ap] subset: Poaceae subset: Rice is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0020020 ! nucellus [Term] id: PO:0008007 name: nucellar projection namespace: plant_structure def: "A portion of plant tissue that is the morphologically distinct portion of the nucellus overlying the vascular strands in the grass caryopsis." [GR:ap] subset: Poaceae subset: Rice is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0020020 ! nucellus [Term] id: PO:0008008 name: modified aleurone namespace: plant_structure def: "A morphologically distinct aleurone layer located adjacent to the nucellar projection." [GR:ap] subset: Poaceae subset: Rice is_a: PO:0005360 ! aleurone layer relationship: part_of PO:0008004 ! fruit aleurone layer [Term] id: PO:0008009 name: abaxial nucellar projection namespace: plant_structure def: "A portion of plant tissue that is the abaxial/lower portion of the nucellus overlying the vascular strands in the grass caryopsis." [GR:ap] subset: Poaceae subset: Rice is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0008007 ! nucellar projection [Term] id: PO:0008010 name: adaxial nucellar projection namespace: plant_structure def: "A portion of plant tissue that is the adaxial/upper portion of the nucellus overlying the vascular strands in the grass caryopsis." [GR:ap] subset: Poaceae subset: Rice is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0008007 ! nucellar projection [Term] id: PO:0008011 name: embryo vascular system namespace: plant_structure def: "Vascular system of embryo." [GR:cwt] is_a: PO:0000034 ! vascular system relationship: part_of PO:0009009 ! embryo [Term] id: PO:0008012 name: stigma vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a stigma." [POC:rw] synonym: "stigma vein" RELATED [] is_a: PO:0000034 ! vascular system relationship: part_of PO:0005019 ! carpel vascular system relationship: part_of PO:0009073 ! stigma [Term] id: PO:0008013 name: anther vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a anther." [POC:rw] is_a: PO:0000034 ! vascular system relationship: part_of PO:0005018 ! stamen vascular system relationship: part_of PO:0009066 ! anther [Term] id: PO:0008014 name: filament vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a filament." [POC:rw] synonym: "filament vein" RELATED [] is_a: PO:0000034 ! vascular system relationship: part_of PO:0005018 ! stamen vascular system relationship: part_of PO:0009067 ! filament [Term] id: PO:0008015 name: hypocotyl vascular system namespace: plant_structure def: "Vascular system of the hypocotyl." [GR:cwt] is_a: PO:0000034 ! vascular system relationship: part_of PO:0008011 ! embryo vascular system relationship: part_of PO:0020100 ! hypocotyl [Term] id: PO:0008016 name: vegetative shoot apical meristem namespace: plant_structure def: "A shoot apical meristem that gives rise to the apical growth of vegetative tissues and organs." [GR:cwt] synonym: "vegetative meristem" RELATED [] is_a: PO:0020148 ! shoot apical meristem [Term] id: PO:0008017 name: leaf sheath pulvinus namespace: plant_structure def: "A more or less abrupt swelling, especially at the apex or base of a leaf sheath." [GR:cwt] is_a: PO:0009000 ! pulvinus relationship: part_of PO:0020104 ! leaf sheath [Term] id: PO:0008018 name: transition leaf namespace: plant_structure def: "A leaf that is part of an heteroblastic series, and is characterized by anatomical features that are intermediate between juvenile and adult leaves." [GR:cwt] is_a: PO:0009025 ! vascular leaf [Term] id: PO:0008019 name: leaf lamina base namespace: plant_structure def: "The region of the leaf lamina proximal to the stem and usually connected to it by means of a petiole." [GR:cwt] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020039 ! leaf lamina [Term] id: PO:0008020 name: central zone of the leaf lamina namespace: plant_structure def: "Region that includes the widest or majority portion of leaf lamina and that does not include leaf apex and leaf lamina base." [GR:cwt] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020039 ! leaf lamina [Term] id: PO:0008021 name: tertiary vein namespace: plant_structure def: "A leaf vein arising from a secondary vein." [GR:cwt] synonym: "third order leaf vein" RELATED [] is_a: PO:0020138 ! leaf vein [Term] id: PO:0008022 name: quaternary vein namespace: plant_structure def: "A leaf vein arising from a tertiary vein." [GR:cwt] synonym: "fourth order leaf vein" RELATED [] is_a: PO:0020138 ! leaf vein [Term] id: PO:0008023 name: higher order vein namespace: plant_structure def: "A leaf vein arising from a quaternary or higher vein order." [GR:cwt] synonym: "fifth and higher order leaf vein" RELATED [] is_a: PO:0020138 ! leaf vein [Term] id: PO:0008024 name: petiole proximal end namespace: plant_structure def: "The region of the petiole proximal to its stem attachment site." [GR:cwt] synonym: "petiole base" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020038 ! petiole [Term] id: PO:0008025 name: central zone of the petiole namespace: plant_structure def: "Regions of the petiole that does not include petiole distal end and petiole proximal end." [GR:cwt] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020038 ! petiole [Term] id: PO:0008026 name: petiole distal end namespace: plant_structure def: "The region of the petiole distal to its stem attachment site or proximal to the leaf lamina." [GR:cwt] synonym: "petiole apex" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020038 ! petiole [Term] id: PO:0008027 name: petiole adaxial epidermis namespace: plant_structure def: "A portion of petiole epidermis that covers the adaxial/upper surface of a petiole." [POC:rw] is_a: PO:0000051 ! petiole epidermis [Term] id: PO:0008028 name: reproductive shoot apical meristem namespace: plant_structure def: "A shoot apical meristem that gives rise to the apical growth of reproductive tissues and organs." [GR:cwt] is_a: PO:0020148 ! shoot apical meristem [Term] id: PO:0008029 name: petiole abaxial epidermis namespace: plant_structure def: "A portion of petiole epidermis that covers the abaxial/lower surface of a petiole." [POC:rw] is_a: PO:0000051 ! petiole epidermis [Term] id: PO:0008030 name: trichome cell namespace: plant_structure def: "A plant cell that is part of a trichome." [POC:curators] comment: A branch of a unicellular trichome is a GO sub-cellular component. synonym: "non-glandular unicellular trichome" NARROW [] synonym: "non-secretory unicellular trichome" NARROW [] synonym: "simple trichome" NARROW [PMID:19939948] synonym: "unicellular trichome" NARROW [] is_a: PO:0009002 ! plant cell disjoint_from: PO:0000332 ! epidermal pavement cell relationship: develops_from PO:0004013 ! epidermal cell relationship: part_of PO:0000282 ! trichome [Term] id: PO:0008031 name: trichome branch namespace: plant_structure def: "The branch on a trichome." [GR:cwt] comment: This term was made obsolete because it is a sub-cellular component. New term unicellular trichome branch (GO:0090405) has been added to GO. For cell that is a branch of a multicellular trichome, see multicellular trichome branch cell (PO:0025163). is_obsolete: true consider: PO:0025163 [Term] id: PO:0008032 name: stomatal pore namespace: plant_structure def: "A plant anatomical space that forms an opening in an epidermis, flanked by two guard cells." [POC:curators] comment: The size of the stomatal pore is variable and controlled by movement of the guard cells in response to environmental cues. subset: TraitNet synonym: "stoma" BROAD [] synonym: "stomata" BROAD [] synonym: "stomatal aperture" RELATED [] is_a: PO:0025117 ! plant anatomical space relationship: part_of PO:0002000 ! stomatal complex [Term] id: PO:0008034 name: leaf whorl namespace: plant_structure def: "A cluster of leaves in crowded circles or spirals arising basally from a crown." [GR:cwt] comment: This term was made obsolete, because its definition did not match the new ontology structure as a child of collective phyllome structure. Annotations for this term are now associated with the new term collective leaf structure (PO:0025022). synonym: "rosette" RELATED [] is_obsolete: true replaced_by: PO:0025022 [Term] id: PO:0008035 name: plerome namespace: plant_structure def: "A meristem forming the core of the axis composed of the primary vascular tissues and associated ground tissue, such as pith and interfascicular regions." [ISBN:0471245208 "Anatomy of seed plants by K.Esau [2nd Edition]"] is_a: PO:0009013 ! meristem [Term] id: PO:0008036 name: periblem namespace: plant_structure def: "A meristem that forms the cortex." [ISBN:0471245208 "Anatomy of seed plants by K. Esau [2nd edition]"] is_a: PO:0009013 ! meristem [Term] id: PO:0008037 name: seedling namespace: plant_structure def: "A young plant derived from a newly germinated seed." [GR:cwt] comment: Replaced by whole plant growth stage 'seedling growth stage' (PO:0007131), and whole plant (PO:0000003). xref: OBO_SF_PO:2972241 is_obsolete: true replaced_by: PO:0000003 [Term] id: PO:0008038 name: adventitious root primordium namespace: plant_structure def: "A root primordium that will develop into an adventitious root." [POC:curators] is_a: PO:0005029 ! root primordium [Term] id: PO:0008039 name: stem base namespace: plant_structure def: "The basal part of stem." [GR:cwt] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009047 ! stem [Term] id: PO:0008040 name: lodicule primordium namespace: plant_structure def: "A primordium that will develop into a lodicule." [POC:curators] is_a: PO:0025127 ! primordium [Term] id: PO:0008041 name: stem internode elongation zone namespace: plant_structure def: "A shoot internode elongation zone that is part of a stem internode." [POC:curators] is_a: PO:0025100 ! shoot internode elongation zone relationship: part_of PO:0020142 ! stem internode [Term] id: PO:0008042 name: stem internode differentiation zone namespace: plant_structure def: "A shoot internode differentiation zone that is part of a stem internode." [POC:rw "PMID:14520573"] comment: Primary, not secondary, tissue differentiation occurs in a differentiation zone. is_a: PO:0025102 ! shoot internode differentiation zone relationship: part_of PO:0020142 ! stem internode [Term] id: PO:0008043 name: floral epidermis namespace: plant_structure def: "A portion of shoot epidermis that is part of the floral organs." [GR:cwt] comment: This term was made obsolete. Its former children were classified as children of either epidermis, phyllome epidermis or shoot epidermis. is_obsolete: true consider: PO:0006040 consider: PO:0006041 consider: PO:0025096 consider: PO:0025097 consider: PO:0025184 [Term] id: PO:0008044 name: floral stomatal complex namespace: plant_structure def: "An opening pore on the epidermis of floral organs bordered by two guard cells and serving in gas exchange." [GR:cwt] comment: This term was made obsolete and replaced by the stomatal complexes of individual floral organs, such as petal stomatal complex or sepal stomatal complex. is_obsolete: true consider: PO:0025217 consider: PO:0025218 consider: PO:0025219 consider: PO:0025220 consider: PO:0025221 [Term] id: PO:0008045 name: floral guard cell namespace: plant_structure def: "One of a pair of cells flanking the stomatal pore of floral organs." [GR:cwt] comment: This term was made obsolete and replaced by the guard cells of individual floral organs, such as petal guard cell or sepal guard cell. is_obsolete: true consider: PO:0000293 [Term] id: PO:0008046 name: floral stomatal pore namespace: plant_structure def: "A stomatal pore that is part of a floral stomatal complex." [POC:curators] comment: This term was made obsolete and replaced by the stomatal pores of individual floral organs, such as petal stomatal pore or sepal stomatal pore. is_obsolete: true consider: PO:0008032 [Term] id: PO:0008047 name: scutellar vascular system namespace: plant_structure def: "A vascular system in a scutellum." [GR:cwt] synonym: "scutellum vascular system" RELATED [] is_a: PO:0000034 ! vascular system relationship: part_of PO:0008011 ! embryo vascular system relationship: part_of PO:0020110 ! scutellum [Term] id: PO:0008048 name: scutellar epithelium namespace: plant_structure def: "A continuous layer of cylindrical cells covering the endosperm side of the scutellum. Thought to act as a secretory and absortive organ." [GR:cwt] synonym: "scutellum epithelium" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0020110 ! scutellum [Term] id: PO:0009000 name: pulvinus namespace: plant_structure def: "A cardinal organ part at the apex or base of a petiole, petiolule, leaf sheath, or branch that is differentiated from the remaining organ parts by its enlarged cross section." [POC:curators] comment: Often glandular. Often involved in movement of a plant structure in response to touch, gravity or light. In panicoid grasses a swollen region in the stem above the intercalary meristem. Such a definition would also include stems of Chloranthaceae, Acanthaceae, Caryophyllaceae, Amaranthaceae, etc., [source: APWeb:Glossary]. xref: OBO_SF_PO:2971884 xref: OBO_SF_PO:2972236 xref: PATO:0000586 "increased size, enlarged" is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009006 ! shoot system [Term] id: PO:0009001 name: fruit namespace: plant_structure alt_id: PO:0020067 alt_id: PO:0020068 alt_id: PO:0020069 alt_id: PO:0020070 alt_id: PO:0020071 alt_id: PO:0020072 alt_id: PO:0020073 alt_id: PO:0020074 alt_id: PO:0020076 alt_id: PO:0020077 alt_id: PO:0020078 alt_id: PO:0020079 alt_id: PO:0020080 alt_id: PO:0020082 alt_id: PO:0020083 alt_id: PO:0020087 alt_id: PO:0020107 def: "A collective plant structure containing one or more embryos, which as a whole, develops from a gynoecium." [POC:curators] comment: A fruit may contain additional plant structures that were part of the flower that mature along with the gynoecium, such as a receptacle. A fruit may develop without fertilization in cases of parthenocarpy, apomixis, or other hormone-induced conditions. Fruits only occur in angiosperms. subset: Angiosperm subset: Arabidopsis subset: Maize subset: Poaceae subset: Rice subset: TraitNet synonym: "achene" NARROW [] synonym: "berry" NARROW [] synonym: "capsule" NARROW [] synonym: "caryopsis" NARROW [] synonym: "circumcissile capsule" NARROW [] synonym: "cypsela" NARROW [] synonym: "drupe" NARROW [] synonym: "follicle" NARROW [] synonym: "grain" NARROW [] synonym: "kernel" NARROW [] synonym: "legume" NARROW [] synonym: "loculicidal capsule" NARROW [] synonym: "lomentum" NARROW [] synonym: "nut" NARROW [] synonym: "pod" NARROW [] synonym: "pome" NARROW [] synonym: "poricidal capsule" NARROW [] synonym: "schizocarp" NARROW [] synonym: "septicidal capsule" NARROW [] synonym: "septifragal capsule" NARROW [] synonym: "silicula" NARROW [] synonym: "siliqua" NARROW [] synonym: "silique" NARROW [] xref: OBO_SF_PO:2972169 is_a: PO:0025007 ! collective plant structure relationship: develops_from PO:0009062 ! gynoecium [Term] id: PO:0009002 name: plant cell namespace: plant_structure def: "A cell that is part of a plant and that has as its parts a plant cell wall." [GO:0005623, GR:pj, ISBN:0471245208, POC:curators] comment: Applies to cells that are living or dead at maturity (e.g., fiber cell or tracheid). Definition of cell GO:0005623: "The basic structural and functional unit of all organisms. Includes the plasma membrane and any external encapsulating structures such as the cell wall and cell envelope". See definition of plant-type cell wall GO:0009505. Egg and sperm cells lack the cell wall. subset: reference subset: TraitNet xref: CL:0000610 xref: OBO_SF_PO:2932524 is_a: PO:0009011 ! plant structure relationship: part_of PO:0000003 ! whole plant [Term] id: PO:0009003 name: sporophyte namespace: plant_structure def: "A plant structure that is a product of fertilization and produces spores through meiosis." [POC:curators] comment: Replaced_by sporophytic phase (PO:0028003). Structures that only occur in sporophyte should have participates_in relation to sporophytic phase. subset: reference xref: OBO_SF_PO:2968332 is_obsolete: true consider: PO:0000003 [Term] id: PO:0009004 name: gametophyte namespace: plant_structure def: "A plant structure that arises through meiosis and may produce gametes by mitosis." [POC:curators] comment: Replaced_by gametophytic phase (PO:0028002). The gametophyte arises from the product of meiosis (the spore). Structures that occur only in gametophytes should have a participates_in relation to the gametophytic phase. subset: reference xref: OBO_SF_PO:2968330 is_obsolete: true consider: PO:0000003 consider: PO:0020091 consider: PO:0020092 [Term] id: PO:0009005 name: root namespace: plant_structure alt_id: PO:0003006 def: "A plant axis that is part of a root system." [POC:curators] comment: Commonly thought of as one of the three basic parts of the seed plant body. A plant stucture that is usually underground and does not bear leaves and only rarely shoots, is usually more or less positively geotropic, is endogenous in origin, indeterminate in growth and often with secondary thickening. subset: Maize subset: reference subset: TraitNet synonym: "aerial root" NARROW [] is_a: PO:0025004 ! plant axis relationship: develops_from PO:0005029 ! root primordium relationship: part_of PO:0025025 ! root system [Term] id: PO:0009006 name: shoot system namespace: plant_structure def: "A collective plant structure that produces shoot apical meristems and the plant structures that arise from them." [POC:curators] comment: Generally the above ground portion of a plant. subset: reference subset: TraitNet synonym: "Poaceae crown" RELATED [] synonym: "shoot" RELATED [] synonym: "tree crown" NARROW [] xref: OBO_SF_PO:3011039 is_a: PO:0025007 ! collective plant structure [Term] id: PO:0009007 name: portion of plant tissue namespace: plant_structure def: "A plant structure that has as its parts multiple cells and is a proper part of an organ." [POC:curators, TAIR:lr] comment: These cells are organized into a structural unit, and may include an intercellular matrix. subset: reference subset: TraitNet synonym: "plant tissue" RELATED [] xref: OBO_SF_PO:2944945 is_a: PO:0009011 ! plant structure relationship: part_of PO:0000003 ! whole plant [Term] id: PO:0009008 name: plant organ namespace: plant_structure def: "A plant structure that is a functional unit, is a proper part of a plant, and includes portions of tissues of at least two different types that derive from a common developmental path." [POC:curators] comment: Examples: stem, leaf, root. May include individual cell types that are not part of tissues (e.g.: idioblasts). subset: TraitNet synonym: "compound plant organ" RELATED [] synonym: "simple plant organ" RELATED [PATO:01503] xref: OBO_SF_PO:2932521 is_a: PO:0009011 ! plant structure relationship: part_of PO:0000003 ! whole plant [Term] id: PO:0009009 name: embryo namespace: plant_structure def: "A whole plant in the post-zygotic stage that does not yet consist of fully differentiated tissues." [POC:curators] comment: Adventitious embryos and somatic embryos do not arise from zygotes. Cultured embryos (PO:0000010), including haploid embryos, are in vitro plant structures. Embryos occur prior to germination in vascular plants. synonym: "germ" RELATED [] xref: OBO_SF_PO:2982384 is_a: PO:0000003 ! whole plant [Term] id: PO:0009010 name: seed namespace: plant_structure def: "A propagating organ formed in the reproductive cycle of gymnosperms and angiosperms, derived from the ovule and enclosing an embryo." [APWeb:Glossary, GR:pj] comment: The seed is representative of a next generation of sporophyte. subset: Arabidopsis subset: Citrus subset: Maize subset: Poaceae subset: Rice subset: Tomato subset: TraitNet is_a: PO:0000003 ! whole plant relationship: part_of PO:0009001 ! fruit [Term] id: PO:0009011 name: plant structure namespace: plant_structure def: "An anatomical structure (CARO:0000003) that is or was part of a plant, or was derived from a part of a plant." [POC:curators] comment: 'Part' includes both proper parts and the whole plant. subset: TraitNet xref: OBO_SF_PO:2932527 is_a: PO:0025131 ! plant anatomical entity [Term] id: PO:0009012 name: plant growth and development stage namespace: plant_growth_and_development_stage def: "The succession of changes leading from the zygote to the mature plant." [Poc:curators] subset: TraitNet synonym: "Arabidopsis growth" RELATED [TAIR:0000205] [Term] id: PO:0009013 name: meristem namespace: plant_structure def: "A portion of plant tissue in which cells have retained their embryonic characteristics, or have reverted to them secondarily, and that divide to produce new cells that can undergo differentiation to form mature tissues, i.e. they have a capacity for morphogenesis and growth." [APWeb:Glossary, GR:pj] subset: TraitNet synonym: "meristematic tissue" EXACT [] synonym: "portion of meristem tissue" EXACT [] is_a: PO:0009007 ! portion of plant tissue [Term] id: PO:0009014 name: dermal tissue namespace: plant_structure def: "A portion of plant tissue that covers the surface of the plant." [GR:pj, ISBN:0122151704] comment: This term is redundant with epidermis and will be obsoleted.\nMove annotations to epidermis. xref: OBO_SF_PO:3008008 is_obsolete: true replaced_by: PO:0005679 [Term] id: PO:0009015 name: portion of vascular tissue namespace: plant_structure def: "A portion of plant tissue that has parts xylem and phloem." [APweb:Glossary] comment: Functions in conduction and support. In the stem it is often found as a stele, surrounded by the cortex and surrounding the pith. subset: TraitNet synonym: "vascular system" RELATED [] xref: BTO:0001432 "vascular tissue" is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0005020 ! vascular bundle [Term] id: PO:0009016 name: ground tissue namespace: plant_structure def: "OBSOLETE. Tissues other than the vascular tissues, epidermis and the periderm." [GR:pj] comment: Uninformative definition. Check it again. is_obsolete: true [Term] id: PO:0009017 name: inflorescence branch pulvinus namespace: plant_structure def: "Pulvinus of an inflorescence branch." [GR:cwt] is_a: PO:0009000 ! pulvinus relationship: part_of PO:0009081 ! inflorescence branch [Term] id: PO:0009018 name: basal endosperm transfer cell namespace: plant_structure def: "A transfer cell that is part of a basal endosperm transfer layer." [POC:rw] comment: Responsible for transferring nutrients to an embry by symplastic or apoplastic methods. xref: OBO_SF_PO:3132534 is_a: PO:0000078 ! transfer cell relationship: part_of PO:0025196 ! basal endosperm transfer layer [Term] id: PO:0009019 name: obsolete basal endosperm transfer layer namespace: plant_structure def: "A cell layer found in basal endosperm transfer cell." [GR:cwt] comment: This term was made obsolete because the definition was wrong. Replace by new term with same name but corrected definition. is_obsolete: true replaced_by: PO:0025196 [Term] id: PO:0009020 name: meristem L1 namespace: plant_structure def: "The outermost layer of a shoot apical meristem that gives rise to a shoot epidermis." [GR:pj, PMID:12221985] is_a: PO:0009013 ! meristem relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0009021 name: meristem L2 namespace: plant_structure def: "A cell layer directly beneath a meristem L1 layer in a shoot apical meristem which gives rise to subepidermal tissue." [GR:pj, PMID:12221985] is_a: PO:0009013 ! meristem relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0009022 name: meristem L3 namespace: plant_structure def: "A multicellular layer beneath a mersistem L2 layer in a shoot apical meristem which gives rise to internal tissues of leaf and stem." [GR:pj, PMID:12221985] is_a: PO:0009013 ! meristem relationship: part_of PO:0020148 ! shoot apical meristem [Term] id: PO:0009023 name: leaf axil namespace: plant_structure def: "An axil that is the space between a shoot axis and a leaf that branches from the shoot axis." [POC:rw] xref: OBO_SF_PO:3007368 is_a: PO:0025224 ! axil [Term] id: PO:0009024 name: gynoecium ridge of lower floret of pedicellate spikelet of ear namespace: plant_structure def: "A Zea gynoecium ridge that is a gynoecium of a lower floret of a pedicellate spikelet of ear in the early stages of development." [POC:curators] comment: This term has multiple inheritance because describes an entity at a certain stage in its\ndevelopment. While the development of this stylar ridge is very similar to that of the upper florets, the development does not proceed beyond the early ridge stage. synonym: "gynoecial ridge of lower floret of pedicellate spikelet of ear" EXACT [] synonym: "stylar ridge of lower floret of pedicellate spikelet of ear" EXACT [ISBN-13:978-0387947358 "Cheng and Pareddy chapter"] xref: OBO_SF_PO:2959654 is_a: PO:0006424 ! gynoecium of lower floret of pedicellate spikelet of ear is_a: PO:0025087 ! Zea gynoecium ridge [Term] id: PO:0009025 name: vascular leaf namespace: plant_structure def: "A leaf in a vascular plant." [POC:curators] comment: In angiosperms, commonly thought of as one of the three basic parts of the seed plant body, a structure usually of determinate growth, without secondary thickening, and of superficial origin, often flattened and photosynthetic in part, and in the axil of which is found a bud (APweb Glossary). Occurs in the sporophytic phase of a plant life cycle. subset: reference subset: TraitNet synonym: "foliage leaf" RELATED [] is_a: PO:0025034 ! leaf [Term] id: PO:0009026 name: sporophyll namespace: plant_structure def: "A leaf-like organ on which one or more sporangia are borne." [APWeb:Glossary] subset: reference subset: TraitNet is_a: PO:0006001 ! phyllome [Term] id: PO:0009027 name: megasporophyll namespace: plant_structure def: "A structure upon which (or in the axil of which) one or more megasporangia are borne; in flowering plants, a carpel." [APWeb:Glossary] subset: TraitNet is_a: PO:0009026 ! sporophyll [Term] id: PO:0009028 name: microsporophyll namespace: plant_structure def: "A structure on which one or more microsporangia are borne; in flowering plants, the stamen." [APWeb:Glossary] subset: TraitNet is_a: PO:0009026 ! sporophyll [Term] id: PO:0009029 name: stamen namespace: plant_structure def: "A microsporophyll bearing one or more microsporangia." [APWeb:Glossary] subset: reference subset: TraitNet is_a: PO:0009028 ! microsporophyll relationship: develops_from PO:0004705 ! stamen primordium relationship: part_of PO:0009061 ! androecium [Term] id: PO:0009030 name: carpel namespace: plant_structure def: "A megasporophyll, almost always at the center of a flower, its margins more or less fused together or with other carpels to enclose the ovule(s)." [APWeb:Glossary] comment: If carpels are fused, the gynoecium is a syncarpous gynoecium, as in Poaceae, Brassicaceae and Solanaceae.  If carpels are free, the gynoecium is an apocarpous gynoecium, as in Fabaceae. subset: reference subset: TraitNet is_a: PO:0009027 ! megasporophyll relationship: develops_from PO:0004703 ! carpel primordium relationship: part_of PO:0009062 ! gynoecium [Term] id: PO:0009031 name: sepal namespace: plant_structure def: "A member of the (usually green) outer whorl of non-fertile parts surrounding the fertile organs of a flower." [APWeb:Glossary] subset: reference subset: TraitNet is_a: PO:0006001 ! phyllome relationship: develops_from PO:0004704 ! sepal primordium relationship: part_of PO:0009060 ! calyx [Term] id: PO:0009032 name: petal namespace: plant_structure def: "A member of the corolla, the inner whorl of non-fertile parts surrounding the fertile organs of a flower, usually soft and colored conspicuously." [APWeb:Glossary] subset: reference subset: TraitNet is_a: PO:0006001 ! phyllome relationship: develops_from PO:0000021 ! petal primordium relationship: part_of PO:0009059 ! corolla [Term] id: PO:0009033 name: tepal namespace: plant_structure def: "A phyllome that is part of a perianth in which all parts are similar in appearance and are neither petals nor sepals." [POC:curators] subset: reference subset: TraitNet xref: OBO_SF_PO:2972262 xref: PlantSystematics.org:tepal images is_a: PO:0006001 ! phyllome relationship: part_of PO:0025021 ! collective tepal structure [Term] id: PO:0009034 name: floral bract namespace: plant_structure def: "A bract subtending a flower." [Poc:curators] subset: reference subset: TraitNet synonym: "chaff" RELATED [] xref: OBO_SF_PO:2972266 is_a: PO:0009055 ! bract relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0009035 name: nectary namespace: plant_structure def: "A multicellular glandular structure secreting a liquid containing organic substances especially sugars." [GR:pj] subset: reference subset: TraitNet is_a: PO:0005656 ! portion of secretory tissue relationship: part_of PO:0009006 ! shoot system [Term] id: PO:0009036 name: lodicule namespace: plant_structure def: "A phyllome that is part of a grass floret and is one of two or three tiny scales or flaps of tissue outside the stamens." [POC:curators] comment: May represent a reduced floral structure. subset: reference xref: OBO_SF_PO:3132537 is_a: PO:0006001 ! phyllome relationship: develops_from PO:0008040 ! lodicule primordium relationship: part_of PO:0006318 ! Poaceae floret [Term] id: PO:0009037 name: lemma namespace: plant_structure def: "In a grass floret, the lower of two bracts enclosing a flower." [APWeb:Glossary, GR:pj] subset: reference is_a: PO:0009034 ! floral bract relationship: part_of PO:0006318 ! Poaceae floret [Term] id: PO:0009038 name: palea namespace: plant_structure def: "In a grass floret, the upper of the two bracts enclosing a flower." [APWeb:Glossary, GR:pj] comment: Possibly a prophyll/bracteole. subset: reference is_a: PO:0009034 ! floral bract relationship: part_of PO:0006318 ! Poaceae floret [Term] id: PO:0009039 name: glume namespace: plant_structure alt_id: PO:0006026 def: "A \"bract\" in the inflorescence of a grass, sedge or similar plant." [APWeb:Glossary, GR:pj] subset: reference synonym: "rudimentary glume" RELATED [] is_a: PO:0009054 ! inflorescence bract relationship: part_of PO:0009051 ! spikelet [Term] id: PO:0009040 name: sterile lemma namespace: plant_structure alt_id: PO:0006029 def: "A bract in the position of a lemma, but not enclosing floral organs." [UMSL:tk] comment: An undeveloped androecium or gynoecium may or may not be detectable. subset: reference synonym: "empty glume" RELATED [] is_a: PO:0009037 ! lemma [Term] id: PO:0009041 name: fertile lemma namespace: plant_structure def: "A lemma that encloses a functional flower, with androecium, gynoecium or both." [UMSL:tk] subset: reference is_a: PO:0009037 ! lemma [Term] id: PO:0009042 name: prophyll namespace: plant_structure def: "The first leaf or two leaves formed at the base of an axillary shoot, often smaller and/or in a distinctively different position from those formed subsequently." [APWeb:Glossary] subset: reference is_a: PO:0006001 ! phyllome [Term] id: PO:0009043 name: bracteole namespace: plant_structure def: "A small leaf or leaves borne singly or in pairs on the pedicel, the prophyll(s) of the flower-shoot (pedicel plus flower)." [APWeb:Glossary] is_a: PO:0009042 ! prophyll relationship: part_of PO:0009052 ! pedicel [Term] id: PO:0009044 name: perigynium namespace: plant_structure def: "Sac-like bract subtending the pistillate flower, as in Carex." [GR:pj] is_a: PO:0009042 ! prophyll [Term] id: PO:0009045 name: involucral bract namespace: plant_structure def: "Equals inflorescence bract of an involucre, as in Asteraceae or Compositeae." [APWeb:Glossary] subset: reference synonym: "phyllary" RELATED [] is_a: PO:0009054 ! inflorescence bract relationship: part_of PO:0009100 ! involucre [Term] id: PO:0009046 name: flower namespace: plant_structure alt_id: PO:0004541 def: "A determinate reproductive shoot system that has as part at least one carpel or at least one stamen and does not contain any other determinate shoot system as a part." [POC:curators] comment: The characteristic reproductive structure of angiosperms. May have as part one or more petals, sepals or tepals. May contain pistillode or staminode or other aborted organs that don't show up in mature form. subset: Angiosperm subset: reference subset: TraitNet synonym: "basal flower" NARROW [CO_125:0000019] synonym: "diclinous flower" NARROW [] synonym: "double flower" NARROW [] synonym: "female flower" NARROW [CO_125:0000050] synonym: "hermaphrodite flower" NARROW [CO_125:0000028] synonym: "imperfect flower" NARROW [] synonym: "male flower" NARROW [CGP:curators] synonym: "monoclinous flower" NARROW [] synonym: "perfect flower" NARROW [] synonym: "pistillate flower" NARROW [] synonym: "staminate flower" NARROW [] xref: OBO_SF_PO:2971891 is_a: PO:0025082 ! reproductive shoot system relationship: develops_from PO:0004706 ! flower primordium [Term] id: PO:0009047 name: stem namespace: plant_structure def: "A shoot axis that is the primary axis of a plant." [POC:curators] comment: Often bears leaves and buds. It is usually above ground, more or less negatively geotropic, and exogenous in origin. subset: reference subset: TraitNet synonym: "cane" NARROW [] synonym: "culm" EXACT [] synonym: "primary axis" EXACT [] synonym: "stalk" NARROW [] synonym: "trunk" NARROW [] xref: OBO_SF_PO:2903994 xref: OBO_SF_PO:2982923 is_a: PO:0025029 ! shoot axis [Term] id: PO:0009049 name: inflorescence namespace: plant_structure alt_id: PO:0009048 alt_id: PO:0009050 alt_id: PO:0020088 alt_id: PO:0020111 alt_id: PO:0020112 alt_id: PO:0020113 alt_id: PO:0020114 alt_id: PO:0020115 alt_id: PO:0020116 alt_id: PO:0020117 alt_id: PO:0020118 alt_id: PO:0020119 alt_id: PO:0020120 def: "A reproductive shoot system that has as parts all of the shoot axes distal to the most distal foliage leaf of a shoot axis and all of the flowers borne by those axes. Must have two or more flowers as parts." [POC:rw] comment: Some plants have only solitary flowers, e.g. Magnolia. subset: Angiosperm subset: reference subset: TraitNet synonym: "Asteraceae floret" NARROW [] synonym: "capitulum" NARROW [] synonym: "catkin" NARROW [] synonym: "corymb" NARROW [] synonym: "cyme" NARROW [] synonym: "dichasium" NARROW [] synonym: "drepanium" NARROW [] synonym: "helicoid cyme" NARROW [] synonym: "monochasium" NARROW [] synonym: "panicle" NARROW [] synonym: "raceme" NARROW [] synonym: "rhipidium" NARROW [] synonym: "scorpioid cyme" NARROW [] synonym: "Sorghum cob" NARROW [] synonym: "Triticeae spike" NARROW [] synonym: "umbel" NARROW [] synonym: "verticillaster" NARROW [] xref: OBO_SF_PO:2971891 is_a: PO:0025082 ! reproductive shoot system relationship: has_part PO:0009046 ! flower [Term] id: PO:0009051 name: spikelet namespace: plant_structure def: "Ultimate and congested inflorescence branch of the grasses." [APWeb:Glossary] comment: It consists of one to many closely-packed flowers and associated glumes etc. subset: Poaceae subset: reference xref: OBO_SF_PO:2971891 is_a: PO:0025082 ! reproductive shoot system relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0009052 name: pedicel namespace: plant_structure def: "An inflorescence branch that supports an individual flower in an inflorescence that contains more than one flower." [ISBN:0-7167-1007-2] comment: The bracteoles are borne on the pedicel, which terminates in a flower. A pedicel is the ultimate branch in an inflorescence. subset: Angiosperm subset: reference xref: OBO_SF_PO:2971884 xref: OBO_SF_PO:2975275 is_a: PO:0009081 ! inflorescence branch relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0009053 name: peduncle namespace: plant_structure def: "A branch of an inflorescence or an individual flower." [ISBN:0-7167-1007-2] subset: Musa subset: reference synonym: "inflorescence stem " RELATED [] xref: OBO_SF_PO:2972231 is_a: PO:0025029 ! shoot axis relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0009054 name: inflorescence bract namespace: plant_structure def: "A bract subtending a branch of the inflorescence or borne on the inflorescence axis below any branches or flowers." [APWeb:Glossary] subset: reference subset: TraitNet xref: OBO_SF_PO:2972266 is_a: PO:0009055 ! bract relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0009055 name: bract namespace: plant_structure def: "A phyllome, usually different in form from the foliage leaves, subtending a reproductive structure." [POC:curators] comment: Often used to refer to what is called here floral bract. subset: reference subset: TraitNet synonym: "hypsophyll" RELATED [] is_a: PO:0006001 ! phyllome [Term] id: PO:0009056 name: floral nectary namespace: plant_structure def: "A multicellular glandular structure found in the flower secreting a liquid containing organic substances especially sugars." [ISBN:047124529] subset: reference is_a: PO:0009035 ! nectary relationship: part_of PO:0009046 ! flower [Term] id: PO:0009057 name: extrafloral nectary namespace: plant_structure def: "A multicellular glandular structure found in places other than flower secreting a liquid containing organic substances especially sugar." [ISBN:047124529] subset: TraitNet is_a: PO:0009035 ! nectary [Term] id: PO:0009058 name: perianth namespace: plant_structure def: "A collective phyllome structure composed of two or more petals, sepals, or tepals." [POC:curators] subset: reference subset: TraitNet xref: OBO_SF_PO:2971891 xref: OBO_SF_PO:2988258 is_a: PO:0025023 ! collective phyllome structure relationship: part_of PO:0009046 ! flower [Term] id: PO:0009059 name: corolla namespace: plant_structure def: "A collective phyllome structure composed of two or more petals." [POC:curators] subset: reference subset: TraitNet synonym: "angiosperm calyptra" NARROW [POC:curators "In angiosperms, the petals may be fused into a calyptra, which is different than a calytra in mosses"] xref: OBO_SF_PO:2971891 xref: OBO_SF_PO:2988258 is_a: PO:0025023 ! collective phyllome structure relationship: part_of PO:0009058 ! perianth [Term] id: PO:0009060 name: calyx namespace: plant_structure def: "A collective phyllome structure composed of two or more sepals." [POC:curators] subset: reference subset: TraitNet xref: OBO_SF_PO:2971891 xref: OBO_SF_PO:2988258 is_a: PO:0025023 ! collective phyllome structure relationship: part_of PO:0009058 ! perianth [Term] id: PO:0009061 name: androecium namespace: plant_structure def: "A collective phyllome structure composed of two or more stamens." [POC:curators] comment: In some cases the androecium may consist of only one stamen. subset: Maize subset: Poaceae subset: reference subset: TraitNet xref: OBO_SF_PO:2971891 xref: OBO_SF_PO:2988258 is_a: PO:0025023 ! collective phyllome structure relationship: part_of PO:0009046 ! flower [Term] id: PO:0009062 name: gynoecium namespace: plant_structure def: "A collective phyllome structure composed of two or more carpels." [POC:curators] comment: In some cases the gynoecium may consist of only one carpel. subset: reference subset: TraitNet synonym: "pistil" RELATED [] xref: OBO_SF_PO:2971891 xref: OBO_SF_PO:2988258 is_a: PO:0025023 ! collective phyllome structure relationship: develops_from PO:0000019 ! gynoecium primordium relationship: part_of PO:0009046 ! flower [Term] id: PO:0009063 name: epicalyx namespace: plant_structure def: "A collective phyllome structure composed of two or more phyllomes immediately outside the calyx." [POC:curators] subset: reference xref: OBO_SF_PO:2971891 xref: OBO_SF_PO:2988258 is_a: PO:0025023 ! collective phyllome structure relationship: part_of PO:0009046 ! flower [Term] id: PO:0009064 name: receptacle namespace: plant_structure def: "A cardinal organ part that is the region at the distal end of either a peduncle or a pedicel where the floral appendages (for example, sepals, petals, stamens, and pistils) are attached." [web:http\://www.bbg.org/gar2/topics/botany/parts_flowers.html] subset: reference xref: OBO_SF_PO:2971884 xref: OBO_SF_PO:2975273 is_a: PO:0009049 ! inflorescence is_a: PO:0025001 ! cardinal organ part [Term] id: PO:0009065 name: hypanthium namespace: plant_structure def: "A cup- or tube-shaped cardinal organ part, bearing perianth and stamens on its rim, so these arise above the base, and often above the top, of the ovary." [ISBN:0521251346] comment: Only bears stamens or perianth segments if they are present in the flower (e.g., no stamens in a carpellate flower). subset: reference xref: OBO_SF_PO:2972200 xref: PATO:0001873 "tube-shaped (synonym of cylindrical)" xref: PATO:0002227 "cup-shaped" is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009064 ! receptacle [Term] id: PO:0009066 name: anther namespace: plant_structure def: "The pollen-bearing part of a stamen." [APWeb:Glossary] subset: reference subset: TraitNet xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: develops_from PO:0006089 ! anther primordium relationship: part_of PO:0009029 ! stamen [Term] id: PO:0009067 name: filament namespace: plant_structure def: "A stalk of a stamen." [GR:pj, MaizeGDB:lv] subset: reference subset: TraitNet is_a: PO:0025066 ! stalk relationship: part_of PO:0009029 ! stamen [Term] id: PO:0009068 name: connective namespace: plant_structure def: "The part of the stamen that connects the microsporangia/pollen sacs." [APWeb:Glossary] subset: reference xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009066 ! anther [Term] id: PO:0009069 name: theca namespace: plant_structure def: "A part of the anther consisting of paired sporangia that dehisce down a common slit." [APWeb:Glossary] subset: reference is_a: PO:0009070 ! pollen sac [Term] id: PO:0009070 name: pollen sac namespace: plant_structure def: "A microsporangium in an angiosperm that is a cavity in an anther that contains pollen grains." [ISBN:0716710072] subset: Angiosperm subset: reference subset: TraitNet synonym: "anther lobe" RELATED [] xref: OBO_SF_PO:3132610 is_a: PO:0025202 ! microsporangium relationship: part_of PO:0009066 ! anther [Term] id: PO:0009071 name: tapetum namespace: plant_structure def: "Innermost part of the anther wall, involved in the nutrition of the pollen." [APWeb:Glossary, TAIR:lr] subset: reference is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0006008 ! inner secondary parietal cell layer relationship: part_of PO:0000002 ! anther wall [Term] id: PO:0009072 name: ovary namespace: plant_structure def: "The basal portion of a carpel or group of fused carpels, that encloses the ovule(s)." [APWeb:Glossary, TAIR:lr] subset: Maize subset: reference subset: TraitNet xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009030 ! carpel [Term] id: PO:0009073 name: stigma namespace: plant_structure def: "Part of a carpel or group of fused carpels on which the pollen germinates, usually apical." [APWeb:Glossary, TAIR:lr] subset: reference subset: TraitNet xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009030 ! carpel [Term] id: PO:0009074 name: style namespace: plant_structure def: "An elongated part of a carpel or group of fused carpels between the ovary and the stigma, and through which the pollen tube grows." [APWeb:Glossary, TAIR:lr] subset: reference subset: TraitNet synonym: "silk" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009030 ! carpel [Term] id: PO:0009075 name: plant ontology namespace: plant_structure def: "OBSOLETE. A controlled vocabulary to describe the various plant parts and the growth and developmental stages." [Poc:curators] is_obsolete: true [Term] id: PO:0009076 name: gynoecium ridge of lower floret of sessile spikelet of ear namespace: plant_structure def: "A Zea gynoecium ridge that is a gynoecium of a lower floret of sessile spikelet of ear in the early stages of development." [POC:curators] comment: This term has multiple inheritance because describes an entity at a certain stage in its\ndevelopment. Continued overgrowth of the shoot apex (which becomes the ovule primordium) by the ring of gynoecial tissue leads to the formation of the stylar canal, which is detected as a slight protuberance on the mature ovary. synonym: "gynoecial ridge of lower floret of sessile spikelet of ear" EXACT [] synonym: "stylar ridge of lower floret of sessile spikelet of ear" EXACT [ISBN-13:978-0387947358 "Cheng and Pareddy chapter"] xref: OBO_SF_PO:2959654 is_a: PO:0006423 ! gynoecium of lower floret of sessile spikelet of ear is_a: PO:0025087 ! Zea gynoecium ridge [Term] id: PO:0009077 name: staminode namespace: plant_structure def: "Sterile stamen." [APWeb:Glossary, GR:pj] is_a: PO:0009028 ! microsporophyll relationship: part_of PO:0009061 ! androecium [Term] id: PO:0009078 name: pistillode namespace: plant_structure def: "A sterile pistil, often rudimentary." [APWeb:Glossary] subset: reference is_a: PO:0009062 ! gynoecium [Term] id: PO:0009079 name: gynoecium ridge of upper floret of pedicellate spikelet of ear namespace: plant_structure def: "A Zea gynoecium ridge that is a gynoecium of an upper floret of pedicellate spikelet of ear in the early stages of development." [POC:curators] comment: This term has multiple inheritance because describes an entity at a certain stage in its\ndevelopment. synonym: "gynoecial ridge of upper floret of pedicellate spikelet of ear" EXACT [] synonym: "stylar ridge of upper floret of pedicellate spikelet of ear" EXACT [ISBN-13:978-0387947358 "Cheng and Pareddy chapter"] xref: OBO_SF_PO:2959654 is_a: PO:0006426 ! gynoecium of upper floret of pedicellate spikelet of ear is_a: PO:0025087 ! Zea gynoecium ridge [Term] id: PO:0009080 name: spikelet rachilla namespace: plant_structure def: "The axis of the spikelet, above the glumes." [Poc:curators] is_a: PO:0009081 ! inflorescence branch relationship: part_of PO:0009051 ! spikelet [Term] id: PO:0009081 name: inflorescence branch namespace: plant_structure def: "An inflorescence axis that is a branch forming from a primary or higher order inflorescence axis." [Poc:curators] subset: Angiosperm synonym: "coflorescence" RELATED [] is_a: PO:0020122 ! inflorescence axis relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0009082 name: floret namespace: plant_structure def: "Small flowers, especially of the spikelets of Poaceae and Cyperaceae." [APWeb:Glossary] subset: reference is_a: PO:0009046 ! flower [Term] id: PO:0009083 name: reproductive structures namespace: plant_structure def: "OBSOLETE. Aggregation of gamete producing structures." [Poc:curators] is_obsolete: true [Term] id: PO:0009084 name: pericarp namespace: plant_structure def: "A wall of a fruit, developed from the ovary or carpel wall." [APWeb:Glossary, GR:pj, TAIR:lr] subset: Arabidopsis subset: Citrus subset: Maize subset: Poaceae subset: Rice subset: Tomato synonym: "fruit peel" RELATED [] synonym: "fruit rind" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009001 ! fruit [Term] id: PO:0009085 name: exocarp namespace: plant_structure alt_id: PO:0006046 alt_id: PO:0006217 def: "A portion of plant tissue that is the outer layer of a pericarp." [GR:pj] subset: Citrus subset: Tomato synonym: "ectocarp" EXACT [] synonym: "epicarp" EXACT [] synonym: "flavedo" EXACT [] synonym: "outer epidermis of pericarp" RELATED [] synonym: "pericarp epidermis" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009084 ! pericarp [Term] id: PO:0009086 name: endocarp namespace: plant_structure alt_id: PO:0006047 def: "A portion of plant tissue that is the innermost differentiated layer of a pericarp." [GR:pj] subset: Arabidopsis subset: Citrus subset: Maize subset: Poaceae subset: Rice subset: Tomato synonym: "citrus flesh" RELATED [] synonym: "citrus pulp" RELATED [] synonym: "endocarp" RELATED [] synonym: "inner epidermis of pericarp" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009084 ! pericarp [Term] id: PO:0009087 name: mesocarp namespace: plant_structure def: "A portion of plant tissue that is the middle layer of a pericarp." [GR:pj] subset: Citrus subset: Tomato synonym: "albedo" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009084 ! pericarp [Term] id: PO:0009088 name: seed coat namespace: plant_structure def: "A portion of plant tissue that is the covering of a seed derived from ovular - mainly integumentary - tissue." [APWeb:Glossary, GR:pj, TAIR:lr] comment: Used only when not specified more precisely; see testa, tegmen. subset: TraitNet is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009010 ! seed [Term] id: PO:0009089 name: endosperm namespace: plant_structure def: "A maximal portion of nutritive plant tissue in a seed." [APWeb:Glossary, GR:pj] comment: In angiosperms endosperm is usually triploid and formed after fertilization by the fusion of one gamete with the polar nucleus; sometimes diploid or polyploid. subset: TraitNet is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009010 ! seed [Term] id: PO:0009090 name: aril namespace: plant_structure def: "A cardinal organ part that is a fleshy outgrowth of the funicle, covering all or most of the seed." [ISBN-13:9780881928501] comment: A fleshy outgrowth from another part of a seed is an arilloid. If the ovule is pressed against the funicle to form a raphe, it may appear that the aril is growing from the raphe. subset: reference subset: TraitNet is_a: PO:0025001 ! cardinal organ part relationship: develops_from PO:0020006 ! funicle relationship: part_of PO:0009010 ! seed [Term] id: PO:0009091 name: mature dispersal unit namespace: plant_structure def: "OBSOLETE. provisional term" [Poc:curators] is_obsolete: true [Term] id: PO:0009092 name: gynoecium ridge of upper floret of sessile spikelet of ear namespace: plant_structure def: "A Zea gynoecium ridge that is a gynoecium of an upper floret of sessile spikelet of ear in the early stages of development." [POC:curators] comment: This term has multiple inheritance because describes an entity at a certain stage in its\ndevelopment. synonym: "gynoecial ridge of upper floret of sessile spikelet of ear" EXACT [] synonym: "stylar ridge of upper floret of sessile spikelet of ear" EXACT [ISBN-13:978-0387947358 "Cheng and Pareddy Chapter"] xref: OBO_SF_PO:2959654 is_a: PO:0006425 ! gynoecium of upper floret of sessile spikelet of ear is_a: PO:0025087 ! Zea gynoecium ridge [Term] id: PO:0009100 name: involucre namespace: plant_structure def: "A collective phyllome structure composed of two or more involucral bracts at the base of a cluster of flowers, as found in Asteraceae or Compositae." [POC:curators] comment: The burs or bristles in Cenchrus and Pennisetum are not involucres because the fused structures are branches and not bracts. xref: OBO_SF_PO:2971891 xref: OBO_SF_PO:2997165 is_a: PO:0025023 ! collective phyllome structure relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0009101 name: long lateral tassel branch namespace: plant_structure def: "The long branch that  arise from the central spike of tassel in maize." [GR:pj, MaizeGDB:lv] subset: Maize synonym: "second order tassel branch" RELATED [] is_a: PO:0006323 ! tassel branch relationship: develops_from PO:0009104 ! long lateral tassel branch meristem [Term] id: PO:0009102 name: short tassel branch namespace: plant_structure def: "The very short branch that may arise from either or both the long lateral branch and the central spike of tassel in maize." [GR:pj, MaizeGDB:lv] subset: Maize synonym: "third order tassel branch" RELATED [] is_a: PO:0006323 ! tassel branch relationship: develops_from PO:0009103 ! short tassel branch meristem [Term] id: PO:0009103 name: short tassel branch meristem namespace: plant_structure def: "The meristem present on either or both the long lateral branch and central spike of a maize tassel that gives rise to short tassel branch." [GR:pj, MaizeGDB:lv] subset: Maize synonym: "short branch meristem" RELATED [] synonym: "third order tassel branch meristem" RELATED [] is_a: PO:0009107 ! tassel lateral meristem relationship: part_of PO:0006324 ! central spike of tassel relationship: part_of PO:0009101 ! long lateral tassel branch [Term] id: PO:0009104 name: long lateral tassel branch meristem namespace: plant_structure def: "The meristem that gives rise to the long lateral branch in the maize tassel." [MaizeGDB:lv] subset: Maize synonym: "long lateral branch meristem" RELATED [] synonym: "second order tassel branch meristem" RELATED [] is_a: PO:0009107 ! tassel lateral meristem relationship: part_of PO:0006324 ! central spike of tassel [Term] id: PO:0009105 name: inflorescence lateral meristem namespace: plant_structure def: "The meristem which gives rise to the lateral structures of the inflorescence and contributes to their apical growth." [GR:pj, MaizeGDB:lv] is_a: PO:0000230 ! inflorescence meristem is_a: PO:0006344 ! shoot lateral meristem [Term] id: PO:0009106 name: tassel meristem namespace: plant_structure def: "Meristem that gives rise to the apical and lateral structures of the tassel inflorescence in maize." [GR:pj] subset: Maize is_a: PO:0000230 ! inflorescence meristem relationship: part_of PO:0020126 ! tassel [Term] id: PO:0009107 name: tassel lateral meristem namespace: plant_structure def: "The meristem that gives rise to the long lateral branch, short branch and spikelets in maize tassel." [MaizeGDB:lv] subset: Maize is_a: PO:0009105 ! inflorescence lateral meristem is_a: PO:0009106 ! tassel meristem [Term] id: PO:0009108 name: inflorescence apical meristem namespace: plant_structure def: "A reproductive shoot apical meristem that gives rise to the apical growth of the inflorescence. It develops from the shoot apical meristem (SAM) after it undergoes transition from vegetative to reproductive phase." [GR:pj, MaizeGDB:lv] is_a: PO:0000230 ! inflorescence meristem is_a: PO:0008028 ! reproductive shoot apical meristem relationship: develops_from PO:0008016 ! vegetative shoot apical meristem [Term] id: PO:0009109 name: ear meristem namespace: plant_structure def: "The meristem which gives rise to the female inflorescence or ear in maize." [MaizeGDB:lv] subset: Maize is_a: PO:0000230 ! inflorescence meristem relationship: part_of PO:0020136 ! Zea ear [Term] id: PO:0009110 name: ear lateral meristem namespace: plant_structure def: "The meristem that gives rise to the lateral structures of a maize ear." [GR:pj] subset: Maize is_a: PO:0009105 ! inflorescence lateral meristem is_a: PO:0009109 ! ear meristem [Term] id: PO:0009111 name: petiole pulvinus namespace: plant_structure def: "Pulvinus of the petiole." [GR:cwt] is_a: PO:0009000 ! pulvinus relationship: part_of PO:0020038 ! petiole [Term] id: PO:0019018 name: embryo axis namespace: plant_structure def: "An axial part of an embryo that has as parts a hypocotyl and a root meristem or, if present, a radicle." [ISBN:0471245208, POC:rw] synonym: "hypocotyl-root axis" RELATED [] is_a: PO:0025099 ! embryonic plant structure relationship: has_part PO:0006085 ! root meristem relationship: has_part PO:0020100 ! hypocotyl [Term] id: PO:0019022 name: arilloid namespace: plant_structure def: "A cardinal organ part that is a fleshy outgrowth of a seed and does not cover the entire seed and develops from a part of the seed other than a funicle." [ISBN-13:9780881928501] subset: TraitNet synonym: "caruncle" NARROW [ISBN-13:978-0-88192-850-1 "an arilloid near the micropyle"] synonym: "strophiole" NARROW [ISBN-13:9780881928501 "an arilloid on the raphe"] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009010 ! seed [Term] id: PO:0019023 name: strophiole namespace: plant_structure def: "An outgrowth occurring on the raphe." [ISBN:0080280293] subset: reference is_a: PO:0019022 ! arilloid relationship: part_of PO:0020027 ! raphe [Term] id: PO:0019024 name: seed operculum namespace: plant_structure def: "A plug-like structure formed in the micropylar region of the seed coat." [ISBN:0080280293] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009010 ! seed [Term] id: PO:0019026 name: tracheid bar namespace: plant_structure def: "A distinct ring-like structure, composed of tracheid cells, which surrounds the hilum of some taxa e.g., Phaseolus, and forms a groove in the surface of the pericarp (immediately adjacent to the hilum)." [ISBN:0080280293] is_a: PO:0009015 ! portion of vascular tissue relationship: part_of PO:0009010 ! seed [Term] id: PO:0020001 name: ovary placenta namespace: plant_structure def: "A placenta that is part of an ovary and to which ovules are attached." [APWeb:Glossary] subset: reference is_a: PO:0025078 ! placenta relationship: part_of PO:0009072 ! ovary [Term] id: PO:0020002 name: endothecium namespace: plant_structure def: "A portion of hypodermis of an anther sac with distinctively thickened walls and involved in its dehiscence, especially when this is by slits." [APWeb:Glossary] subset: reference synonym: "anther sac hypodermis" RELATED [] is_a: PO:0005051 ! hypodermis relationship: develops_from PO:0006009 ! outer secondary parietal cell layer relationship: part_of PO:0000002 ! anther wall [Term] id: PO:0020003 name: ovule namespace: plant_structure def: "A stalked or sessile structure in a seed plant within which one or more megaspores are formed and later the female gametophyte or embryo sac develops." [APWeb:Glossary] subset: reference subset: TraitNet xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: develops_from PO:0000018 ! ovule primordium relationship: part_of PO:0009072 ! ovary [Term] id: PO:0020004 name: exothecium namespace: plant_structure alt_id: PO:0006059 def: "A portion of stamen epidermis that is part of an anther sac, sometimes with distinctively thickened walls and involved in its dehiscence, usually only when this is poricidal." [APWeb:Glossary] subset: reference synonym: "anther epidermis" RELATED [] synonym: "anther sac epidermis" RELATED [] is_a: PO:0025097 ! stamen epidermis relationship: part_of PO:0000002 ! anther wall [Term] id: PO:0020005 name: placentoid namespace: plant_structure def: "A portion of parenchyma tissue that is part of a connective and projects into a pollen sac." [ISBN:9780470752685] subset: reference xref: OBO_SF_PO:3132542 is_a: PO:0005421 ! parenchyma relationship: part_of PO:0009068 ! connective [Term] id: PO:0020006 name: funicle namespace: plant_structure def: "A stalk that attaches an ovule to a placenta." [APWeb:Glossary, GR:pj] subset: reference synonym: "funiculus" RELATED [] is_a: PO:0025066 ! stalk relationship: part_of PO:0009072 ! ovary [Term] id: PO:0020008 name: exine namespace: plant_structure def: "OBSOLETE: The outer layer of the pollen grain wall, highly resistant to strong acids and bases, and composed primarily of sporopollenin." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043668. subset: reference is_obsolete: true [Term] id: PO:0020009 name: ectexine namespace: plant_structure def: "OBSOLETE: The outer part of the exine, which stains positively with basic fuchsin in optical microscopy and has higher electron density in conventionally prepared TEM sections." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043669. subset: reference is_obsolete: true [Term] id: PO:0020010 name: endexine namespace: plant_structure def: "OBSOLETE: The inner part of the exine, which stains." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043671. subset: reference is_obsolete: true [Term] id: PO:0020011 name: nexine namespace: plant_structure def: "OBSOLETE: The inner, non-sculptured part of the exine which lies below the sexine." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043672. subset: reference is_obsolete: true [Term] id: PO:0020012 name: sexine namespace: plant_structure def: "OBSOLETE: The outer, sculptured layer of the exine, which lies above the nexine." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043673. subset: reference is_obsolete: true [Term] id: PO:0020013 name: tectum namespace: plant_structure def: "OBSOLETE: The layer of sexine, which forms a roof over the columellae, granules or other infratectal elements." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043676, subset: reference synonym: "sexine 2" RELATED [] is_obsolete: true [Term] id: PO:0020014 name: columella namespace: plant_structure def: "OBSOLETE: A rod-like element of the sexine/ectexine, either supporting the tectum or a caput." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043674. subset: reference synonym: "sexine 1" RELATED [] is_obsolete: true [Term] id: PO:0020015 name: sculpture elements namespace: plant_structure def: "OBSOLETE: Third layer of sexine." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043675. subset: reference synonym: "sexine 3" RELATED [] is_obsolete: true [Term] id: PO:0020016 name: foot layer namespace: plant_structure def: "OBSOLETE: The inner layer of the ectexine." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043670. synonym: "nexine 1" RELATED [] is_obsolete: true [Term] id: PO:0020017 name: intine namespace: plant_structure def: "OBSOLETE: The innermost of the major layers of the pollen grain wall, underlies the exine and borders the cytoplasm, not acetolysis resistant and is therefore absent in conventionally prepared palynological material." [APWeb:Glossary] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043678. subset: reference is_obsolete: true [Term] id: PO:0020018 name: germination pore namespace: plant_structure def: "OBSOLETE: Area through which the pollen imports the nutrition during its development, at the time of pollen germination, the pollen tube emerges through it." [GR:pj] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043677. subset: reference synonym: "pollen pore" RELATED [] is_obsolete: true [Term] id: PO:0020019 name: megaspore namespace: plant_structure def: "The larger, in general, of the two kinds of spores produced after meiosis in the life cycle of a heterosporous plant, and on germination giving rise to the female gametophyte (embryo sac)." [APWeb:Glossary] xref: CL:0000250 is_a: PO:0025017 ! spore relationship: develops_from PO:0025227 ! tetrad of megaspores [Term] id: PO:0020020 name: nucellus namespace: plant_structure def: "A megasporangium in a seed plant, composed of fleshy subepidermal tissue inside an ovule and surrounding a megasporocyte." [POC:rw] comment: In seed plants, the megaspores and megagametophyte are retained within the nucellus. subset: reference subset: TraitNet synonym: "megasporangium" RELATED [] xref: OBO_SF_PO:2903966 xref: OBO_SF_PO:3132605 is_a: PO:0025201 ! megasporangium relationship: part_of PO:0020003 ! ovule [Term] id: PO:0020021 name: integument namespace: plant_structure def: "One of the layers of tissue that usually covers an ovule, enveloping a nucellus and forming the micropyle at the apex." [APWeb:Glossary] subset: reference subset: TraitNet is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0020003 ! ovule [Term] id: PO:0020022 name: inner integument namespace: plant_structure def: "The innermost of the two layers of tissue that usually cover the ovule, contiguous to the nucellus and usually contributing to the formation of the micropyle at the apex." [APWeb:Glossary] is_a: PO:0020021 ! integument [Term] id: PO:0020023 name: outer integument namespace: plant_structure def: "One of the two layers of tissue that usually cover the ovule, contiguous to the inner integument and usually involved in forming the micropyle at the apex." [APWeb:Glossary] is_a: PO:0020021 ! integument [Term] id: PO:0020024 name: endothelium namespace: plant_structure def: "Cells of the inner epidermis of the inner (or only) integument of the ovule that are radially elongated and metabolically very active." [APWeb:Glossary] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0020022 ! inner integument [Term] id: PO:0020025 name: micropyle namespace: plant_structure def: "A plant anatomical space that is enclosed by and forms an opening in an integument at the apex of an ovule." [POC:curaotrs] comment: The micropyle originates as an opening in the integuments of an ovule through which the pollen tube usually enters the embryo sac. In a mature seed the micropyle may remain visible as an occluded pore or may be obliterated. subset: reference subset: TraitNet synonym: "ovular micropyle" EXACT [] is_a: PO:0025117 ! plant anatomical space relationship: part_of PO:0020021 ! integument [Term] id: PO:0020026 name: chalaza namespace: plant_structure def: "Region in the ovule where the integuments and the nucellus join with the funiculus." [ISBN:047124529] comment: The chalaza is recognized as the region which initiates the two integuments at its flank. subset: reference synonym: "ovular chlaza" EXACT [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0020003 ! ovule [Term] id: PO:0020027 name: raphe namespace: plant_structure def: "A cardinal organ part that is a ridge on an ovule where a funicle is or was fused to the ovule." [ISBN:047124529, POC:curators] subset: reference xref: OBO_SF_PO:2971884 xref: OBO_SF_PO:2972097 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020003 ! ovule [Term] id: PO:0020028 name: antiraphe namespace: plant_structure def: "A cardinal organ part that is the part of an ovule on the opposite side from a raphe." [POC:curators] subset: Angiosperm subset: reference xref: OBO_SF_PO:2971884 xref: OBO_SF_PO:2972168 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020003 ! ovule [Term] id: PO:0020029 name: obturator namespace: plant_structure def: "An outgrowth of the funicle, that forms a bridge between the micropyle and other tissues." [APWeb:Glossary] comment: Most commonly arising from the funicle, also developing from placenta, integument, etc. subset: reference is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0020006 ! funicle [Term] id: PO:0020030 name: cotyledon namespace: plant_structure def: "A leaf formed at the first node of a sporophyte." [APWeb:Glossary, GR:pj] subset: reference subset: TraitNet is_a: PO:0009025 ! vascular leaf relationship: develops_from PO:0000015 ! cotyledon primordium [Term] id: PO:0020031 name: radicle namespace: plant_structure def: "The radicle is the basal continuation of the hypocotyl in an embryo and gives rise to the root system of the adult plant; sometimes more or less abortive." [APWeb:Glossary] subset: reference is_a: PO:0000045 ! embryonic root relationship: part_of PO:0019018 ! embryo axis [Term] id: PO:0020032 name: plumule namespace: plant_structure def: "A somewhat differentiated terminal bud in several embryo types above the cotyledonary node, in which one or more internodes and leaves or scales can be discerned in a primordial stage." [APWeb:Glossary] synonym: "embryonic shoot" RELATED [] is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0020033 name: coleoptile namespace: plant_structure def: "A tubular embryonic structure developed at the junction of the cotyledonary sheath with the seedling axis, and surrounding the plumule of a monocot embryo or seedling." [APWeb:Glossary] is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0020034 name: coleorhiza namespace: plant_structure def: "A portion of embryonic plant tissue surrounding the radicle in the embryo or seedling of some monocots." [APWeb:Glossary] comment: The parenchyma cells of both the coleorhiza and epiblast may function in storage. is_a: PO:0025233 ! embryonic plant tissue [Term] id: PO:0020035 name: epicotyl namespace: plant_structure def: "The first internode of a stem above the hypocotyl. In literature also used for the entire embryonic axis, consisting of several internodes, above the cotyledonary node." [APWeb:Glossary] is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0020036 name: epiblast namespace: plant_structure def: "A portion of embryonic plant tissue that is a flap-like projection of the coleorhiza, inserted opposite the scutellum." [ISBN:0471244554] comment: The parenchyma cells of both the coleorhiza and epiblast may function in storage. Some researchers consider the epiblast and coleorhiza independent structures that differentiate from the same proembryonic tissue. is_a: PO:0025233 ! embryonic plant tissue relationship: part_of PO:0020034 ! coleorhiza [Term] id: PO:0020037 name: mesocotyl namespace: plant_structure def: "The internode between the cotyledon or cotyledons and the leaf or leaves at the next node of a young sporophyte." [APWeb:Glossary] is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0020038 name: petiole namespace: plant_structure def: "A stalk of a leaf." [APWeb:Glossary, GR:pj] subset: TraitNet is_a: PO:0025066 ! stalk relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0020039 name: leaf lamina namespace: plant_structure def: "A lamina that is part of a leaf, usually dorsiventrally flattened and expanded." [APWeb:Glossary] comment: Reference lamina in CARO. subset: TraitNet synonym: "leaf blade" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025060 ! lamina relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0020040 name: leaf base namespace: plant_structure def: "A phyllome base that is part of a leaf." [POC:rw] synonym: "leaf sheath base" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025140 ! phyllome base relationship: part_of PO:0025034 ! leaf [Term] id: PO:0020041 name: stipule namespace: plant_structure def: "A phyllome that is one of (usually) a pair of appendages at a leaf base." [POC:curators] subset: TraitNet is_a: PO:0006001 ! phyllome relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0020042 name: simple leaf namespace: plant_structure def: "A leaf in which the lamina is undivided." [Poc:curators] is_a: PO:0009025 ! vascular leaf [Term] id: PO:0020043 name: compound leaf namespace: plant_structure def: "A leaf having two or more distinct leaflets that are evident as such from early in development." [APWeb:Glossary] is_a: PO:0009025 ! vascular leaf [Term] id: PO:0020044 name: hyperphyll namespace: plant_structure def: "The unifacial terete apical portion of a monocot cotyledon, sometimes also visible on other leaves." [APWeb:Glossary] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020030 ! cotyledon [Term] id: PO:0020045 name: pinnate leaf namespace: plant_structure def: "A once-compound leaf with leaflets borne along a rachis." [APWeb:Glossary] comment: The total number of leaflets may be even or odd, in which case the leaf is called even-pinnate or odd-pinnate respectively. is_a: PO:0020043 ! compound leaf [Term] id: PO:0020046 name: palmate leaf namespace: plant_structure def: "A once-compound leaf divided into several leaflets which arise at the same point, there being no rachis." [APWeb:Glossary] is_a: PO:0020043 ! compound leaf [Term] id: PO:0020047 name: microsporocyte namespace: plant_structure def: "A diploid (2n) cell that undergoes meiosis and produces four haploid (1n) microspores." [ISBN:0878934030] subset: reference synonym: "microspore mother cell" RELATED [] synonym: "PMC" RELATED [] synonym: "pollen mother cell" RELATED [] xref: CL:0000248 is_a: PO:0006204 ! sporocyte relationship: develops_from PO:0006088 ! primary sporogenous cell relationship: part_of PO:0009070 ! pollen sac [Term] id: PO:0020048 name: microspore namespace: plant_structure def: "The smaller, in general, of the two kinds of spores produced after meiosis in the life cycle of a heterosporous plant, and on germination giving rise to the male gametophyte." [APWeb:Glossary] subset: reference xref: CL:0000252 is_a: PO:0025017 ! spore relationship: develops_from PO:0000032 ! tetrad of microspores [Term] id: PO:0020049 name: leaflet namespace: plant_structure def: "One of the ultimate segments of a compound leaf." [APWeb:Glossary] subset: TraitNet xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020043 ! compound leaf [Term] id: PO:0020050 name: petiolule namespace: plant_structure def: "A stalk of a leaflet." [APWeb:Glossary] is_a: PO:0025066 ! stalk relationship: part_of PO:0020049 ! leaflet [Term] id: PO:0020051 name: stipel namespace: plant_structure def: "Stipule-like appendage(s) at the base of a leaflet (in unifoliolate or simple leaves, found at the top of the petiole)." [APWeb:Glossary] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0020049 ! leaflet [Term] id: PO:0020052 name: megaphyll namespace: plant_structure def: "OBSOLETE. Literally a large leaf, a leaf of any size whose vascular supply leaves one or more gaps as it departs from the stem vascular tissue." [APWeb:Glossary] is_obsolete: true [Term] id: PO:0020053 name: microphyll namespace: plant_structure def: "OBSOLETE. Literally a small leaf, a leaf of any size in which any vascular trace supplying it does not interrupt the central vascular cylinder when it departs, i.e. there are no leaf gaps." [APWeb:Glossary] is_obsolete: true [Term] id: PO:0020054 name: bud scale namespace: plant_structure def: "A reduced leaf surrounding a dormant bud." [UMSL:tk] is_a: PO:0006003 ! scale leaf [Term] id: PO:0020055 name: leaf rachis namespace: plant_structure def: "A stalk that is the main axis of a pinnate or more highly compound leaf, that bears leaflets or divisions of the axis." [APWeb:Glossary] subset: TraitNet xref: OBO_SF_PO:2971884 xref: OBO_SF_PO:2972235 is_a: PO:0025066 ! stalk relationship: part_of PO:0020043 ! compound leaf [Term] id: PO:0020056 name: tegmen namespace: plant_structure def: "That part of the seed coat that develops from the inner integument." [APWeb:Glossary, ISBN:0080374913] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009088 ! seed coat [Term] id: PO:0020057 name: testa namespace: plant_structure def: "That part of the seed coat that develops from the outer integument, or from the single integument when there is only one." [APWeb:Glossary, ISBN:0080374913] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009088 ! seed coat [Term] id: PO:0020058 name: perisperm namespace: plant_structure alt_id: PO:0006335 def: "Diploid nutritive tissue in an angiosperm seed derived from nucellar tissue." [APWeb:Glossary] synonym: "seed nucellus" RELATED [] is_a: PO:0009007 ! portion of plant tissue relationship: part_of PO:0009010 ! seed [Term] id: PO:0020059 name: pollen wall namespace: plant_structure def: "OBSOLETE: Complex wall surrounding the micrsopore." [UMSL:fz] comment: This term is now available in the cellular_component aspect of the Gene Ontology, GO:0043667. subset: reference is_obsolete: true [Term] id: PO:0020060 name: caruncle namespace: plant_structure def: "An outgrowth from the surface of a seed, usually near the hilum or micropyle." [APWeb:Glossary] is_a: PO:0019022 ! arilloid [Term] id: PO:0020061 name: coma namespace: plant_structure def: "A portion of seed coat epidermis that consists of multiple seed trichomes at the micropyle." [POC:curators] subset: TraitNet synonym: "brush" EXACT [] is_a: PO:0006048 ! seed coat epidermis relationship: has_part PO:0004511 ! seed trichome [Term] id: PO:0020062 name: elaiosome namespace: plant_structure def: "An appendage of a seed, usually rich in oil, attractive to animals, especially ants." [APWeb:Glossary] subset: TraitNet is_a: PO:0019022 ! arilloid [Term] id: PO:0020063 name: hilum namespace: plant_structure def: "A cardinal organ part that is a scar on a seed at the place where it was attached to a funicle." [POC:curators] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009010 ! seed [Term] id: PO:0020064 name: dehiscent fruit namespace: plant_structure def: "OBSOLETE. Fruit that breaks open at maturity to release the contents." [APWeb:Glossary] is_obsolete: true [Term] id: PO:0020065 name: indehiscent fruit namespace: plant_structure def: "OBSOLETE. Fruit that does not open at maturity." [APWeb:Glossary] is_obsolete: true [Term] id: PO:0020066 name: fleshy fruit namespace: plant_structure def: "OBSOLETE. The fruit may be derived from monocarpellate or multicarpellate gynoecia. Their walls may consist of the pericarp or of pericarp fused with extracarpellary tissue. The outer part of the fruit wall or the entire fruit wall may become fleshy by differentiating into soft, succulent parenchyma. Parts other than the wall such as placentae and partitions in multilocular ovaries may become fleshy." [ISBN:047124529] is_obsolete: true [Term] id: PO:0020075 name: mericarp namespace: plant_structure def: "OBSOLETE. One segment of a fruit of a schizocarp consisting of pericarp plus seed(s)." [APWeb:Glossary] is_obsolete: true [Term] id: PO:0020081 name: seed as dispersal unit namespace: plant_structure def: "OBSOLETE." [Poc:curators] is_obsolete: true [Term] id: PO:0020084 name: pyrene namespace: plant_structure def: "OBSOLETE. The 'stone' or 'pit' (endocarp plus seed) of a succulent fruit." [APWeb:Glossary] is_obsolete: true [Term] id: PO:0020085 name: seed and fruit wall as dispersal unit namespace: plant_structure def: "OBSOLETE." [Poc:curators] is_obsolete: true [Term] id: PO:0020086 name: multiple fruit namespace: plant_structure def: "OBSOLETE. Fruit on a common axis derived from the ovaries of several flowers." [APWeb:Glossary] is_obsolete: true [Term] id: PO:0020090 name: central cell namespace: plant_structure def: "The largest cell of the mature embryo sac. Contains two polar nuclei, which (after double fertilization) will develop into the endosperm." [TAIR:ki] subset: reference xref: CL:0000278 is_a: PO:0025026 ! megagametophytic cell relationship: part_of PO:0025074 ! embryo sac [Term] id: PO:0020091 name: microgametophyte namespace: plant_structure alt_id: PO:0020007 def: "A gametophyte that produces pollen sperm cells." [POC:curators] subset: reference subset: TraitNet synonym: "male gametophyte" EXACT [] synonym: "pollen" RELATED [] synonym: "pollen grain" EXACT [] is_a: PO:0000003 ! whole plant [Term] id: PO:0020092 name: megagametophyte namespace: plant_structure def: "A gametophyte that produces female gametes." [APweb:glossary] subset: reference synonym: "embryo sac" RELATED [] synonym: "female gametophyte" RELATED [] is_a: PO:0000003 ! whole plant [Term] id: PO:0020093 name: antipodal cell namespace: plant_structure def: "Cell, commonly three in number as in the eight-nucleate embryo sac, located at the other end of the embryo sac from the egg cell." [APWeb:Glossary] comment: More or less persistent, multiplicative or not. subset: reference xref: CL:0000537 is_a: PO:0025026 ! megagametophytic cell relationship: part_of PO:0025074 ! embryo sac [Term] id: PO:0020094 name: egg cell namespace: plant_structure def: "A gamete produced by an archegonium or an embryo sac." [POC:curators] comment: The egg (megagamete) is usually larger than the sperm (microgamete). Female gametes may be defined as the non-motile gamete, rather than the larger gamete. subset: reference synonym: "female gamete" EXACT [] synonym: "megagamete" EXACT [] xref: CL:0000254 is_a: PO:0025006 ! gamete [Term] id: PO:0020095 name: polar nucleus namespace: plant_structure def: "OBSOLETE: Usually two nuclei in the center of the eight-nucleate embryo sac that fuse, and subsequently fuse with one of the male gametes to produce the endosperm." [APWeb:Glossary] comment: Comment: this term is now available in the cellular_component aspect of the Gene Ontology (GO:0043078). is_obsolete: true [Term] id: PO:0020096 name: egg apparatus namespace: plant_structure def: "A cardinal organ part that has as parts an egg cell and two synergids and is located at the micropylar end of the embryo sac." [POC:rw] comment: Found in angiosperms. subset: Angiosperm subset: reference is_a: PO:0025001 ! cardinal organ part relationship: has_part PO:0000191 ! synergid relationship: has_part PO:0025123 ! embryo sac egg cell relationship: part_of PO:0025074 ! embryo sac [Term] id: PO:0020097 name: generative cell namespace: plant_structure def: "A cell of the male gametophyte of angiosperms that divides to produce two male gametes or sperm cells." [APWeb:Glossary] subset: reference xref: CL:0000280 is_a: PO:0009002 ! plant cell [Term] id: PO:0020099 name: vegetative cell namespace: plant_structure def: "A plant cell that is the larger cell of a male gametophyte in seed plants. It does not divide further and develops into a pollen tube cell." [POC:rw] subset: reference synonym: "tube cell" RELATED [ISBN:0716710072] xref: CL:0000296 is_a: PO:0009002 ! plant cell [Term] id: PO:0020100 name: hypocotyl namespace: plant_structure def: "The part of the stem below the cotyledonary node and transitional to a root, found in a young sporophyte." [APWeb:Glossary] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part [Term] id: PO:0020101 name: stomium namespace: plant_structure def: "A plant anatomical space that is a slit in an anther lobe formed from when a dehiscence zone dehisces." [POC:curators] comment: Pollen may be released through the stomium. subset: reference is_a: PO:0025117 ! plant anatomical space relationship: part_of PO:0000002 ! anther wall [Term] id: PO:0020102 name: portion of transmitting tissue namespace: plant_structure def: "A portion of ground tissue in the style of a carpel through which the pollen tube grows; it connects the stigma and the inside of ovary." [GR:pj, ISBN:0080374913] subset: reference synonym: "transmitting tract" RELATED [] is_a: PO:0025059 ! portion of ground tissue relationship: part_of PO:0009074 ! style [Term] id: PO:0020103 name: flag leaf namespace: plant_structure def: "The last mature leaf before the inflorescence in a cereal crop plant." [GR:pj] is_a: PO:0006340 ! adult leaf [Term] id: PO:0020104 name: leaf sheath namespace: plant_structure def: "Any tubular portion of the leaf surrounding the stem, as in the Poaceae." [GR:pj] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0020105 name: ligule namespace: plant_structure def: "A membranous or hairy appendage on the adaxial/upper surface of a leaf, at the junction between sheath and blade, especially in grasses." [APWeb:Glossary] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0020106 name: auricle namespace: plant_structure def: "Outgrowth at the base of a leaf blade that may wrap around the stem." [GR:pj] xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0020108 name: suspensor namespace: plant_structure def: "An embryonic plant structure at the base of an embryo that develops from a basal cell and connects an embryo proper to the wall of a megagametophyte." [POC:rw] comment: The suspensor often allows the embryo to penetrate deep into the endosperm. Across plant species, suspensors are morphologically diverse and may be single- or multicellular, undifferentiated or highly differentiated, and variously shaped. xref: OBO_SF_PO:3132565 is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0020109 name: hypophysis namespace: plant_structure def: "An embryonic plant cell that is the uppermost cell of the suspensor from which part of the root and root cap in the embryo of angiosperms are derived." [ISBN:047124529] is_a: PO:0025028 ! embryonic plant cell relationship: part_of PO:0020108 ! suspensor [Term] id: PO:0020110 name: scutellum namespace: plant_structure def: "An embryonic plant structure that is a more or less shield-shaped and absorptive portion of an embryo of Poaceae." [APWeb:Glossary, POC:rw] comment: Probably a modified cotyledon. synonym: "haustorial cotyledon" RELATED [] xref: OBO_SF_PO:3132566 is_a: PO:0025099 ! embryonic plant structure [Term] id: PO:0020121 name: lateral root namespace: plant_structure def: "A root that develops from a lateral root primordium located in the pericycle layer of a primary root." [ISBN:0122151704] is_a: PO:0009005 ! root relationship: develops_from PO:0000016 ! lateral root primordium [Term] id: PO:0020122 name: inflorescence axis namespace: plant_structure def: "A shoot axis that is part of an inflorescence." [POC:rw] subset: Angiosperm subset: TraitNet synonym: "first order inflorescence branch" RELATED [] synonym: "inflorescence rachis" RELATED [] is_a: PO:0025029 ! shoot axis relationship: part_of PO:0009049 ! inflorescence [Term] id: PO:0020123 name: root cap namespace: plant_structure def: "A portion of parenchyma tissue that is part of the root tip and covers the root apical meristem." [ISBN:0716710072, POC:curators] comment: Often composed of living and dead parenchyma cells. Protects the root apical meristem. subset: reference synonym: "rootcap" EXACT [ISBN:0716710072] is_a: PO:0025095 ! root parenchyma relationship: part_of PO:0000025 ! root tip [Term] id: PO:0020124 name: root stele namespace: plant_structure alt_id: PO:0003012 def: "A stele that is part of a root." [POC:rw] comment: Includes the pericycle as the outermost layer of the stele. subset: Maize subset: reference subset: TraitNet synonym: "root vascular cylinder" RELATED [] is_a: PO:0025197 ! stele relationship: part_of PO:0009005 ! root [Term] id: PO:0020125 name: elongation zone namespace: plant_structure def: "The portion of the root that includes small, densely cytoplasmic cells that are dividing and expanding in size." [GR:pj] comment: This term was made obsolete because the definition was not correct. A new term, root elongation zone, was created instead. subset: reference is_obsolete: true replaced_by: PO:0025181 [Term] id: PO:0020126 name: tassel namespace: plant_structure def: "The functionally-staminate flowering structure that terminates the stem of a Zea mays plant." [MaizeGDB:lv] comment: Branched inflorescence with a central axis and about 10-50 lateral branches. subset: Maize subset: reference is_a: PO:0009049 ! inflorescence [Term] id: PO:0020127 name: primary root namespace: plant_structure alt_id: PO:0020089 def: "A root that develops directly from a embryonic radicle." [ISBN:0122151704, POC:curators] comment: Often the central axis of a root system. subset: TraitNet synonym: "tap root" EXACT [] is_a: PO:0009005 ! root relationship: develops_from PO:0020031 ! radicle [Term] id: PO:0020128 name: leaf margin namespace: plant_structure def: "The margin of any flattened part of a leaf." [POC:curators] subset: TraitNet xref: OBO_SF_PO:2972280 is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0009025 ! vascular leaf [Term] id: PO:0020130 name: central root cap namespace: plant_structure def: "A portion of root parenchyma tissue that is the central part of a root cap in which the cells are arranged in longitudinal files." [ISBN:0878938567, POC:curators] synonym: "columella cells" EXACT [] synonym: "columella rootcap" EXACT [ISBN:0716710072] is_a: PO:0025095 ! root parenchyma relationship: part_of PO:0020123 ! root cap [Term] id: PO:0020131 name: lateral root cap namespace: plant_structure def: "A portion of root parenchyma tissue that is part of a root cap and is parallel to the sides of a root axis." [ISBN:0878938567, POC:curators] comment: This is the general term for the lateral portion of any root cap and not the term for a root cap of lateral root (PO:0003018) or lateral root cap of lateral root (PO:0003020). synonym: "peripheral cells" RELATED [] is_a: PO:0025095 ! root parenchyma relationship: part_of PO:0020123 ! root cap [Term] id: PO:0020132 name: columella root cap cell namespace: plant_structure def: "Cell that constitutes the central part of the root cap, arranged in longitudinal files." [PMID:9384380, TAIR:ki] is_a: PO:0025030 ! ground tissue cell relationship: develops_from PO:0020133 ! columella root cap initial cell [Term] id: PO:0020133 name: columella root cap initial cell namespace: plant_structure def: "Cell that produces columella cells in the root cap. In direct contact with quiescent center." [ISBN:0471245208, TAIR:ki] synonym: "columella root cap stem cell" RELATED [] synonym: "columella stem cell" RELATED [] is_a: PO:0000059 ! root initial cell [Term] id: PO:0020134 name: statolith namespace: plant_structure def: "OBSOLETE. Solid cell inclusion of starch containing plastids occurring in root cap cells." [GR:pj] comment: This is sub-cellular term is_obsolete: true [Term] id: PO:0020135 name: root differentiation zone namespace: plant_structure alt_id: PO:0003002 def: "A plant axis differentiation zone that is the part of a root and is located behind a root elongation zone." [POC:curators] comment: Most of the primary tissues of a root mature in the differentiation zone. This zone is where root hairs are produced. subset: reference synonym: "region of root maturation" EXACT [ISBN:0716710072] synonym: "root maturation zone" EXACT [] synonym: "root specialization zone" EXACT [] is_a: PO:0025119 ! plant axis differentiation zone relationship: part_of PO:0009005 ! root [Term] id: PO:0020136 name: Zea ear namespace: plant_structure def: "The distal part of a lateral (axillary) branch in Zea that bears the functionally-carpellate florets in a highly contracted inflorescence." [MaizeGDB:lv] subset: Maize subset: reference synonym: "cob" RELATED [] is_a: PO:0009049 ! inflorescence [Term] id: PO:0020137 name: leaf apex namespace: plant_structure def: "A phyllome apex that is part of a leaf." [POC:rw, UMSL:fz] comment: It is not precisely defined how far toward the base from the tip a leaf apex extends. For the apical most portion of a leaf, use the term leaf tip. synonym: "leaf tip" RELATED [] xref: OBO_SF_PO:2971884 is_a: PO:0025139 ! phyllome apex relationship: part_of PO:0025034 ! leaf [Term] id: PO:0020138 name: leaf vein namespace: plant_structure def: "A strand of vascular tissue in the leaf blade." [APWeb:Glossary] subset: TraitNet is_a: PO:0009015 ! portion of vascular tissue relationship: part_of PO:0000036 ! leaf vascular system [Term] id: PO:0020139 name: midvein namespace: plant_structure def: "The central, and usually the most prominent, vein of a leaf or leaf-like organ." [APWeb:Glossary] synonym: "mid rib" RELATED [] is_a: PO:0020138 ! leaf vein [Term] id: PO:0020140 name: secondary vein namespace: plant_structure def: "Second order veins in the leaf blade." [GR:pj] synonym: "veinlet" RELATED [] is_a: PO:0020138 ! leaf vein [Term] id: PO:0020141 name: stem node namespace: plant_structure def: "A shoot node that is part of a stem." [APWeb:Glossary] is_a: PO:0005004 ! shoot node relationship: part_of PO:0009047 ! stem [Term] id: PO:0020142 name: stem internode namespace: plant_structure def: "A shoot internode that is part of a stem." [POC:curators] comment: See node. is_a: PO:0005005 ! shoot internode relationship: part_of PO:0009047 ! stem [Term] id: PO:0020144 name: apical meristem namespace: plant_structure def: "A maximal portion of meristem tissue located at an apex of a shoot system or root system." [GR:pj, POC:curators] subset: TraitNet synonym: "primary meristem" RELATED [] is_a: PO:0009013 ! meristem [Term] id: PO:0020145 name: lateral meristem namespace: plant_structure def: "A meristem containing cells along the stem or root that first differentiate and function as members of a mature tissue system but then again take up meristematic activity." [APWeb:Glossary] subset: TraitNet synonym: "secondary meristem" RELATED [] is_a: PO:0009013 ! meristem [Term] id: PO:0020147 name: root apical meristem namespace: plant_structure def: "An apical meristem of the root system." [GR:pj, UMSL:fz] comment: In most cases it is involved in root elongation. subset: TraitNet synonym: "promeristem" RELATED [] is_a: PO:0006085 ! root meristem is_a: PO:0020144 ! apical meristem [Term] id: PO:0020148 name: shoot apical meristem namespace: plant_structure def: "A shoot meristem formed in the apex of the shoot, including meristems originating as axillary shoot meristems." [UMSL:fz] subset: TraitNet synonym: "apical meristem" RELATED [] synonym: "primary shoot meristem" RELATED [] is_a: PO:0006079 ! shoot meristem is_a: PO:0020144 ! apical meristem relationship: part_of PO:0000037 ! shoot apex [Term] id: PO:0020149 name: quiescent center namespace: plant_structure def: "A portion of meristem tissue that is part of a root apical meristem and consists of mitotically and metabolically inactive cells and is positioned behind the root protoderm." [ISBN:0122151704, POC:curators] comment: If a root cap is present, the quiescent center is behind the root cap. is_a: PO:0009013 ! meristem relationship: part_of PO:0020147 ! root apical meristem [Term] id: PO:0021002 name: calyx absolute size namespace: plant_growth_and_development_stage def: "OBSOLETE. The proportion of the absolute size reached by the calyx" [POC:curators] is_obsolete: true [Term] id: PO:0021003 name: calyx relationship namespace: plant_growth_and_development_stage def: "OBSOLETE. The stages of development of the calyx with respect to the rest of the bud" [POC:curators] is_obsolete: true [Term] id: PO:0021004 name: inflorescence initiation stage namespace: plant_growth_and_development_stage def: "Stage of inflorescence development marked by the formation of the inflorescence meristem on a vegetative branch." [POC:fz] is_a: PO:0001083 ! inflorescence development stages [Term] id: PO:0025001 name: cardinal organ part namespace: plant_structure def: "A plant structure that is a proper part of an organ and includes portions of tissues of at least two different types." [POC:curators] comment: Cardinal refers to the fact that these are biologically meaningful parts, not arbitrary. Examples include lobe (PO TBD), operculum (PO TBD), neck (PO TBD), petiole PO:0020038, leaflet PO:0020049. subset: Arabidopsis subset: TraitNet xref: OBO_SF_PO:2903994 xref: OBO_SF_PO:2945268 is_a: PO:0009011 ! plant structure relationship: part_of PO:0009008 ! plant organ created_by: Ramona creation_date: 2010-02-11T01:18:24Z [Term] id: PO:0025002 name: basal root namespace: plant_structure def: "A root that arises from a part of the hypocotyl." [POC:curators] subset: TraitNet synonym: "adventitious root" BROAD [] is_a: PO:0009005 ! root created_by: Ramona creation_date: 2010-09-16T03:03:49Z [Term] id: PO:0025003 name: tuber axillary shoot namespace: plant_structure def: "An axillary shoot that develops from a tuber axillary bud." [POC:curators] is_a: PO:0006343 ! axillary shoot system created_by: Ramona creation_date: 2010-09-16T03:17:06Z [Term] id: PO:0025004 name: plant axis namespace: plant_structure def: "An axial plant organ." [POC:curators] comment: Includes roots and shoots. subset: TraitNet is_a: PO:0009008 ! plant organ created_by: Ramona creation_date: 2010-07-01T03:44:41Z [Term] id: PO:0025005 name: organ margin namespace: plant_structure def: "The edge of an organ and the area immediately internally adjacent to it." [POC:curators "Ithaca meeting, 12/2009"] comment: Only flattened or laminar organs or organ parts will have a margin. subset: TraitNet xref: OBO_SF_PO:2903994 xref: OBO_SF_PO:2971884 xref: OBO_SF_PO:2971897 is_a: PO:0025001 ! cardinal organ part created_by: rwalls creation_date: 2010-03-12T10:33:57Z [Term] id: PO:0025006 name: gamete namespace: plant_structure def: "A plant cell that has half the chromosome complement of the sporophyte and is capable of fertilization to create a zygote." [POC:curators] xref: OBO_SF_PO:2941267 is_a: PO:0009002 ! plant cell created_by: cooperl creation_date: 2010-03-03T03:06:46Z [Term] id: PO:0025007 name: collective plant structure namespace: plant_structure def: "A plant structure that is a proper part of a plant and is composed of two or more organs and any associated portions of plant tissue." [POC:curators] comment: Organs can be of the same type or different types. Examples include: flower PO:0009046, perianth PO:0009058, inflorescence PO:0009049. subset: TraitNet xref: OBO_SF_PO:2954382 is_a: PO:0009011 ! plant structure relationship: part_of PO:0000003 ! whole plant created_by: Ramona creation_date: 2010-02-09T04:12:11Z [Term] id: PO:0025008 name: petal margin namespace: plant_structure def: "The margin of a petal." [POC:curators] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0009032 ! petal created_by: rwalls creation_date: 2010-03-12T10:49:36Z [Term] id: PO:0025009 name: leaf lamina margin namespace: plant_structure def: "The margin of a leaf lamina." [POC:curators] is_a: PO:0020128 ! leaf margin relationship: part_of PO:0020039 ! leaf lamina created_by: Ramona creation_date: 2010-03-25T10:04:37Z [Term] id: PO:0025010 name: petiole margin namespace: plant_structure def: "The margin of a flattened petiole." [POC:curators] comment: Petiole margins may be found in flattened (laminar) petioles, but may also occur in laminar extensions of petioles that are rounded or c-shaped in cross section. subset: Musa xref: CO_125:0000006 xref: CO_125:0000016 is_a: PO:0020128 ! leaf margin relationship: part_of PO:0025129 ! petiole lamina created_by: Ramona creation_date: 2010-03-25T10:04:37Z [Term] id: PO:0025011 name: bract margin namespace: plant_structure def: "The margin of a bract." [POC:curators] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0009055 ! bract created_by: Ramona creation_date: 2010-03-25T10:15:35Z [Term] id: PO:0025012 name: cotyledon margin namespace: plant_structure def: "The margin of a cotyledon." [POC:curators] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0020030 ! cotyledon created_by: Ramona creation_date: 2010-03-25T10:15:35Z [Term] id: PO:0025013 name: prophyll margin namespace: plant_structure def: "The margin of a prophyll." [POC:curators] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0009042 ! prophyll created_by: Ramona creation_date: 2010-03-25T10:15:35Z [Term] id: PO:0025014 name: scale leaf margin namespace: plant_structure def: "The margin of a scale leaf." [POC:curators] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0006003 ! scale leaf created_by: Ramona creation_date: 2010-03-25T10:15:35Z [Term] id: PO:0025015 name: tepal margin namespace: plant_structure def: "The margin of a tepal." [POC:curators] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0009033 ! tepal created_by: Ramona creation_date: 2010-03-25T10:15:35Z [Term] id: PO:0025016 name: sporophyll margin namespace: plant_structure def: "The margin of a sporophyll." [POC:curators] is_a: PO:0025018 ! phyllome margin relationship: part_of PO:0009026 ! sporophyll created_by: Ramona creation_date: 2010-03-25T10:15:35Z [Term] id: PO:0025017 name: spore namespace: plant_structure def: "A plant cell that arises through meiosis and develops into a gametophyte." [POC:curators] xref: OBO_SF_PO:2972117 is_a: PO:0009002 ! plant cell created_by: Ramona creation_date: 2010-04-02T09:53:48Z [Term] id: PO:0025018 name: phyllome margin namespace: plant_structure def: "The margin of a phyllome." [POC:curators] subset: TraitNet xref: OBO_SF_PO:2971884 is_a: PO:0025005 ! organ margin created_by: Ramona creation_date: 2010-04-02T10:51:16Z [Term] id: PO:0025019 name: carpel margin namespace: plant_structure def: "The margin of a carpel." [POC:curators] comment: Only flattened carpels can have a margin. is_a: PO:0025016 ! sporophyll margin relationship: part_of PO:0009030 ! carpel created_by: Ramona creation_date: 2010-04-02T01:26:01Z [Term] id: PO:0025020 name: stamen margin namespace: plant_structure def: "The margin of a stamen." [POC:curators] comment: Only flattened stamens can have a margin. is_a: PO:0025016 ! sporophyll margin relationship: part_of PO:0009029 ! stamen created_by: Ramona creation_date: 2010-04-02T01:27:23Z [Term] id: PO:0025021 name: collective tepal structure namespace: plant_structure def: "A perianth consisting of two or more tepals." [POC:Curators] xref: OBO_SF_PO:2988258 is_a: PO:0009058 ! perianth created_by: cooperl creation_date: 2010-04-14T12:41:50Z [Term] id: PO:0025022 name: collective leaf structure namespace: plant_structure def: "A collective phyllome structure composed of two or more leaves." [POC:curators] comment: This term replaces the obsolete term leaf whorl (PO:0008034). If you are looking for annotations for PO:0008034, please use this term instead. synonym: "leaf whorl" NARROW [] synonym: "rosette" NARROW [] xref: OBO_SF_PO:2988258 is_a: PO:0025023 ! collective phyllome structure created_by: Ramona creation_date: 2010-04-21T12:29:35Z [Term] id: PO:0025023 name: collective phyllome structure namespace: plant_structure alt_id: PO:0008033 def: "A collective plant structure that consists of two or more phyllomes originating from the same node or from one or more adjacent nodes with compressed internodes." [POC:Curators] subset: TraitNet synonym: "floral whorl" NARROW [GO:0048438 "floral whorl development", GO:0048457 "floral whorl morphogenisis", GO:0048458 "floral whorl formation", GO:0048459 "floral whorl structural organization"] synonym: "phyllome whorl" RELATED [] synonym: "whorl" NARROW [] xref: OBO_SF_PO:2980171 xref: OBO_SF_PO:2993809 is_a: PO:0025007 ! collective plant structure created_by: cooperl creation_date: 2010-04-28T11:04:34Z [Term] id: PO:0025024 name: branch node namespace: plant_structure def: "A shoot node that is part of a branch." [POC:curators] is_a: PO:0005004 ! shoot node relationship: part_of PO:0025073 ! branch created_by: Ramona creation_date: 2010-07-16T09:59:08Z [Term] id: PO:0025025 name: root system namespace: plant_structure def: "A collective plant structure that produces root apical meristems and the plant structures that arise from them." [POC:curators] comment: Generally the below ground portion of a vascular plant. subset: TraitNet is_a: PO:0025007 ! collective plant structure disjoint_from: PO:0009006 ! shoot system created_by: Ramona creation_date: 2010-07-01T02:11:26Z [Term] id: PO:0025026 name: megagametophytic cell namespace: plant_structure def: "A plant cell that is part of an embryo sac." [POC:rw] is_a: PO:0009002 ! plant cell relationship: part_of PO:0020092 ! megagametophyte created_by: Ramona creation_date: 2010-05-07T02:36:24Z [Term] id: PO:0025027 name: microgametophytic cell namespace: plant_structure def: "A plant cell that is part of a male gametophyte." [POC:rw] comment: This term was made obsolete because it is not appropriate for non-seed plants. is_obsolete: true created_by: Ramona creation_date: 2010-05-07T02:36:55Z [Term] id: PO:0025028 name: embryonic plant cell namespace: plant_structure def: "An embryonic plant structure that is a plant cell that is found only in an embryo." [POC:rw] is_a: PO:0025099 ! embryonic plant structure created_by: Ramona creation_date: 2010-05-07T02:41:17Z [Term] id: PO:0025029 name: shoot axis namespace: plant_structure def: "A plant axis that is part of a shoot system." [POC:curators] comment: Often bears leaves and branches. In vascular plants, has at least one node and one internode. subset: TraitNet synonym: "shoot" RELATED [] is_a: PO:0025004 ! plant axis relationship: part_of PO:0009006 ! shoot system created_by: Ramona creation_date: 2010-07-01T03:46:35Z [Term] id: PO:0025030 name: ground tissue cell namespace: plant_structure subset: TraitNet is_a: PO:0009002 ! plant cell created_by: Ramona creation_date: 2010-05-07T02:47:45Z [Term] id: PO:0025031 name: laticifer cell namespace: plant_structure def: "A ground tissue cell that contains latex." [POC:curators] is_a: PO:0025030 ! ground tissue cell created_by: Ramona creation_date: 2010-07-12T09:08:10Z [Term] id: PO:0025032 name: hydroid namespace: plant_structure def: "An elongate, water conducting cell that is dead at maturity, with tapered ends that are thin and partially hydrolyzed, that lacks specialized wall thickenings or lignin." [ISBN:0-9620733-4-2, ISBN:13- 978-0-7178-1007-3] comment: Occurs in the gametophytic phase of a plant life cycle. is_a: PO:0000081 ! axial cell created_by: Ramona creation_date: 2010-05-12T04:46:21Z [Term] id: PO:0025033 name: leptoid namespace: plant_structure def: "A food conducting cell associated with hydroids that resembles the sieve elements of some seedless vascular plants." [ISBN: 0-9620733-4-2, ISBN13:978-0-7178-1007-3] comment: Occurs in the gametophytic phase of a plant life cycle. is_a: PO:0000081 ! axial cell created_by: Ramona creation_date: 2010-05-12T04:49:59Z [Term] id: PO:0025034 name: leaf namespace: plant_structure def: "A phyllome that is not associated with a reproductive structure." [POC:curators] subset: TraitNet is_a: PO:0006001 ! phyllome relationship: develops_from PO:0000017 ! leaf primordium created_by: Ramona creation_date: 2010-07-12T01:31:44Z [Term] id: PO:0025035 name: storage parenchyma namespace: plant_structure def: "A portion of parenchyma specialized for carbohydrate storage." [POC:curators] comment: This tissue could be found in any organ, but often occurs in fruits or tubers. New GO term carbohydrate storage has been requested. synonym: "flesh" EXACT [] synonym: "fleshy tissue" EXACT [] xref: CHEBI:23008 "carbohydrate" is_a: PO:0005421 ! parenchyma created_by: Ramona creation_date: 2010-05-25T04:30:20Z [Term] id: PO:0025036 name: tuber storage parenchyma namespace: plant_structure def: "A portion of storage parenchyma that is part of a tuber." [POC:curators] comment: This is the flesh of a tuber. See part_of children for individual components of tuber flesh. synonym: "tuber flesh" EXACT [] xref: OBO_SF_PO:3005637 is_a: PO:0025035 ! storage parenchyma relationship: part_of PO:0004543 ! tuber created_by: Ramona creation_date: 2010-05-25T04:33:26Z [Term] id: PO:0025037 name: fruit storage parenchyma namespace: plant_structure def: "A portion of storage parenchyma that is part of a fruit." [POC:curators] synonym: "fruit flesh" EXACT [] is_a: PO:0025035 ! storage parenchyma relationship: part_of PO:0009001 ! fruit created_by: Ramona creation_date: 2010-05-25T04:33:26Z [Term] id: PO:0025038 name: subterranean tuber storage parenchyma namespace: plant_structure def: "A portion of tuber storage parenchyma that is part of a subterranean tuber." [POC:curators] comment: This term is used to refer to potato tuber flesh. See part_of children for individual components of subterranean tuber flesh. subset: Potato synonym: "potato tuber flesh" NARROW [] xref: OBO_SF_PO:3005637 is_a: PO:0025036 ! tuber storage parenchyma relationship: part_of PO:0004547 ! subterranean tuber created_by: Ramona creation_date: 2010-05-25T04:38:30Z [Term] id: PO:0025039 name: aerial tuber storage parenchyma namespace: plant_structure def: "A portion of tuber storage parenchyma that is part of an aerial tuber." [POC:curators] comment: See part_of children for individual components of aerial tuber flesh. xref: OBO_SF_PO:3005637 is_a: PO:0025036 ! tuber storage parenchyma relationship: part_of PO:0004548 ! aerial tuber created_by: Ramona creation_date: 2010-05-25T04:38:30Z [Term] id: PO:0025040 name: tuber axillary vegetative bud namespace: plant_structure def: "An axillary vegetative bud that is part of a tuber." [POC:curators] synonym: "tuber bud" EXACT [] synonym: "tuber eye" RELATED [] xref: OBO_SF_PO:3005636 is_a: PO:0004712 ! axillary vegetative bud relationship: part_of PO:0004543 ! tuber created_by: Ramona creation_date: 2010-05-26T08:09:37Z [Term] id: PO:0025041 name: aerial tuber axillary vegetative bud namespace: plant_structure def: "A tuber axillary vegetative bud that is part of an aerial tuber." [POC:curators] xref: OBO_SF_PO:3005636 is_a: PO:0025040 ! tuber axillary vegetative bud relationship: part_of PO:0004548 ! aerial tuber created_by: Ramona creation_date: 2010-05-26T08:18:09Z [Term] id: PO:0025042 name: subterranean tuber axillary vegetative bud namespace: plant_structure def: "A tuber axillary vegetative bud that is part of a subterranean tuber." [POC:curators] comment: A structure on the tuber surface that can sprout. In potatoes, axillary vegetative buds (eyes) can determine processing quality. Scale that the breeders use to rate the buds/sprouts of tubers: 1. none, 2. swollen eye, 3. sprout ca. 1/4", 4. sprout ca. 1/2", 5. sprout ca. 1", 6. sprout ca. 2", 7. sprout ca. 3", 8. new top growth, 9. chain tubers. subset: Potato synonym: "eye" BROAD [] synonym: "potato eye" NARROW [] synonym: "swollen eye" NARROW [] synonym: "tuber eye" BROAD [] xref: OBO_SF_PO:3005636 is_a: PO:0025040 ! tuber axillary vegetative bud relationship: part_of PO:0004547 ! subterranean tuber created_by: Ramona creation_date: 2010-05-26T08:18:09Z [Term] id: PO:0025043 name: tuber periderm namespace: plant_structure def: "A portion of shoot periderm that is part of a tuber." [POC:curators] xref: OBO_SF_PO:3005635 is_a: PO:0005048 ! shoot axis periderm relationship: part_of PO:0004543 ! tuber created_by: Ramona creation_date: 2010-05-26T03:58:54Z [Term] id: PO:0025044 name: aerial tuber periderm namespace: plant_structure def: "A portion of tuber periderm that is part of an aerial tuber." [POC:curators] is_a: PO:0025043 ! tuber periderm created_by: Ramona creation_date: 2010-05-27T09:31:12Z [Term] id: PO:0025045 name: subterranean tuber periderm namespace: plant_structure def: "A portion of tuber periderm that is part of a subterranean tuber." [POC:curators] comment: The skin of young potatoes is epidermis while the skin of mature potatoes is periderm. subset: Potato synonym: "mature potato tuber skin" NARROW [ISSN:0022-0957] is_a: PO:0025043 ! tuber periderm relationship: part_of PO:0004547 ! subterranean tuber created_by: Ramona creation_date: 2010-05-27T09:31:12Z [Term] id: PO:0025046 name: tuber epidermis namespace: plant_structure def: "A portion of shoot axis epidermis that is part of a tuber." [POC:curators] xref: OBO_SF_PO:3005635 is_a: PO:0000112 ! shoot axis epidermis relationship: part_of PO:0004543 ! tuber created_by: Ramona creation_date: 2010-05-27T09:37:30Z [Term] id: PO:0025047 name: aerial tuber epidermis namespace: plant_structure def: "A portion of tuber epidermis that is part of an aerial tuber." [POC:curators] is_a: PO:0025046 ! tuber epidermis relationship: part_of PO:0004548 ! aerial tuber created_by: Ramona creation_date: 2010-05-27T09:55:39Z [Term] id: PO:0025048 name: subterranean tuber epidermis namespace: plant_structure def: "A tuber epidermis that is part of a subterranean tuber." [POC:curators] comment: The skin of young potatoes is epidermis while the skin of mature potatoes is periderm. synonym: "young potato tuber skin" NARROW [] is_a: PO:0025046 ! tuber epidermis relationship: part_of PO:0004547 ! subterranean tuber created_by: Ramona creation_date: 2010-05-27T09:55:39Z [Term] id: PO:0025049 name: subterranean tuber interfascicular region namespace: plant_structure def: "A tuber interfascicular region that is part of a subterranean tuber storage parenchyma." [ISSN:0003-0589 "Reeve et al. 1969", POC:curators] comment: In potatoes, the interfascicular region extends to the subterranean tuber axillary vegetative buds (eyes). subset: Potato is_a: PO:0025050 ! tuber interfascicular region relationship: part_of PO:0025038 ! subterranean tuber storage parenchyma created_by: Ramona creation_date: 2010-06-01T01:41:11Z [Term] id: PO:0025050 name: tuber interfascicular region namespace: plant_structure def: "An interfascicular region that is part of a tuber storage parenchyma." [POC:curators] synonym: "tuber flesh" BROAD [] xref: OBO_SF_PO:3011081 is_a: PO:0006202 ! interfascicular region relationship: part_of PO:0025036 ! tuber storage parenchyma created_by: Ramona creation_date: 2010-06-01T03:23:27Z [Term] id: PO:0025051 name: aerial tuber interfascicular region namespace: plant_structure def: "A tuber interfascicular region that is part of an aerial tuber storage parenchyma." [POC:curators] is_a: PO:0025050 ! tuber interfascicular region relationship: part_of PO:0025039 ! aerial tuber storage parenchyma created_by: Ramona creation_date: 2010-06-01T03:36:07Z [Term] id: PO:0025052 name: tuber pith namespace: plant_structure def: "A portion of pith that is part of a tuber storage parenchyma." [POC:curators] synonym: "tuber flesh" BROAD [] xref: OBO_SF_PO:3011076 is_a: PO:0005041 ! shoot axis pith relationship: part_of PO:0025036 ! tuber storage parenchyma created_by: Ramona creation_date: 2010-06-01T04:04:39Z [Term] id: PO:0025053 name: subterranean tuber pith namespace: plant_structure def: "A portion of tuber pith that is part of a subterranean tuber storage parenchyma." [ISSN:0003-0589 "Reeve et al. 1969", POC:curators] comment: In potatoes, this is part of the flesh. subset: Potato synonym: "water core" NARROW [ISSN:0003-0589 "Reeve et al. 1969"] is_a: PO:0025052 ! tuber pith relationship: part_of PO:0025038 ! subterranean tuber storage parenchyma created_by: Ramona creation_date: 2010-06-01T04:06:52Z [Term] id: PO:0025054 name: aerial tuber pith namespace: plant_structure def: "A portion of tuber pith that is part of an aerial tuber storage parenchyma." [POC:curators] is_a: PO:0025052 ! tuber pith relationship: part_of PO:0025039 ! aerial tuber storage parenchyma created_by: Ramona creation_date: 2010-06-01T04:06:58Z [Term] id: PO:0025055 name: tuber cortex namespace: plant_structure def: "A portion of stem cortex that is part of a tuber storage parenchyma." [POC:curators] xref: OBO_SF_PO:3011079 is_a: PO:0000223 ! shoot axis cortex relationship: part_of PO:0025036 ! tuber storage parenchyma created_by: rwalls creation_date: 2010-06-02T02:51:28Z [Term] id: PO:0025056 name: aerial tuber cortex namespace: plant_structure def: "Aportion of tuber cortex that is part of an aerial tuber storage parenchyma." [POC:curators] is_a: PO:0025055 ! tuber cortex intersection_of: PO:0025055 ! tuber cortex intersection_of: part_of PO:0025039 ! aerial tuber storage parenchyma relationship: part_of PO:0025039 ! aerial tuber storage parenchyma created_by: Ramona creation_date: 2010-06-03T08:05:23Z [Term] id: PO:0025057 name: subterranean tuber cortex namespace: plant_structure def: "A portion of tuber cortex that is part of a subterranean tuber storage parenchyma." [ISSN:0003-0589 "Reeve et al. 1969", POC:curators] synonym: "Outer storage tissue" EXACT [ISSN:0003-0589 "Reeve et al. 1969"] is_a: PO:0025055 ! tuber cortex intersection_of: PO:0025055 ! tuber cortex intersection_of: part_of PO:0025038 ! subterranean tuber storage parenchyma relationship: part_of PO:0025038 ! subterranean tuber storage parenchyma created_by: Ramona creation_date: 2010-06-03T08:05:23Z [Term] id: PO:0025058 name: perimedullary zone namespace: plant_structure def: "A portion of parenchyma that is the outer layer of a portion of pith." [ISBN:0471244554] comment: The term perimedullary zone is only used when the outer layer of the pith is distinct from the inner layer. xref: OBO_SF_PO:3011661 is_a: PO:0005421 ! parenchyma relationship: part_of PO:0006109 ! pith created_by: Ramona creation_date: 2010-06-03T12:52:12Z [Term] id: PO:0025059 name: portion of ground tissue namespace: plant_structure def: "Any portion of plant tissue other than epidermis or vascular tissue." [ISBN:0-7167-1007-2, ISBN:0471244554] comment: Develops from the ground meristem (eg, meristem L2 and meristem L3). subset: TraitNet synonym: "fundamental tissue" EXACT [ISBN:0471244554 "Esau Plant Anatomy"] xref: OBO_SF_PO:3007983 is_a: PO:0009007 ! portion of plant tissue created_by: cooperl creation_date: 2009-12-17T03:06:13Z [Term] id: PO:0025060 name: lamina namespace: plant_structure def: "A regional part of an anatomical structure that is enlarged through lateral growth." [POCXX:curaors] subset: TraitNet xref: OBO_SF_PO:2971884 is_a: PO:0025001 ! cardinal organ part created_by: cooperl creation_date: 2009-12-18T11:23:59Z [Term] id: PO:0025061 name: tuber perimedullary zone namespace: plant_structure def: "A perimedullary zone that is part of a tuber pith." [POC:curators] synonym: "tuber flesh" BROAD [] is_a: PO:0025064 ! shoot axis perimedullary zone relationship: part_of PO:0025052 ! tuber pith created_by: rwalls creation_date: 2010-06-04T12:58:17Z [Term] id: PO:0025062 name: aerial tuber perimedullary zone namespace: plant_structure def: "A tuber perimedullary zone that is part of an aerial tuber pith." [POC:curators] is_a: PO:0025061 ! tuber perimedullary zone relationship: part_of PO:0025054 ! aerial tuber pith created_by: rwalls creation_date: 2010-06-04T01:00:13Z [Term] id: PO:0025063 name: subterranean tuber perimedullary zone namespace: plant_structure def: "A tuber perimedullary zone that is part of a subterranean tuber pith." [ISSN:0003-0589 "Reeve et al. 1969", POC:curators] subset: Potato is_a: PO:0025061 ! tuber perimedullary zone relationship: part_of PO:0025053 ! subterranean tuber pith created_by: rwalls creation_date: 2010-06-04T01:00:13Z [Term] id: PO:0025064 name: shoot axis perimedullary zone namespace: plant_structure def: "A perimedullary zone that is part of a shoot axis pith." [POC:curators] comment: Can occur in a stem or branch. synonym: "branch perimedullary zone" NARROW [] synonym: "stem perimedullary zone" NARROW [] is_a: PO:0025058 ! perimedullary zone relationship: part_of PO:0005041 ! shoot axis pith created_by: Ramona creation_date: 2010-06-04T05:05:16Z [Term] id: PO:0025065 name: root perimedullary zone namespace: plant_structure def: "A perimedullary zone that is part of a root pith." [POC:curators] is_a: PO:0025058 ! perimedullary zone relationship: part_of PO:0005040 ! root pith created_by: Ramona creation_date: 2010-06-04T05:05:36Z [Term] id: PO:0025066 name: stalk namespace: plant_structure def: "A cardinal organ part that is elongated and sub-cylindrical to cylindrical and supports another cardinal organ part." [POC:curators] comment: Some stalks may be ridged or grooved. subset: TraitNet xref: OBO_SF_PO:2903994 xref: OBO_SF_PO:2972224 xref: PATO:0001873 "cylindrical" xref: PATO:0002226 "subscylindrical" is_a: PO:0025001 ! cardinal organ part created_by: cooperl creation_date: 2009-12-18T10:09:17Z [Term] id: PO:0025067 name: seed storage parenchyma namespace: plant_structure def: "A portion of storage parenchyma that is part of a seed." [POC:curators] xref: OBO_SF_PO:3016492 is_a: PO:0025035 ! storage parenchyma relationship: part_of PO:0009010 ! seed created_by: Ramona creation_date: 2010-06-15T11:03:02Z [Term] id: PO:0025068 name: tuber axillary bud meristem namespace: plant_structure def: "An axillary bud meristem that is part of a tuber." [POC:curators] comment: As the bud grows, the meristem switches from being an axillary meristem to being a shoot apical meristem. xref: OBO_SF_PO:3016498 is_a: PO:0000232 ! axillary bud meristem relationship: part_of PO:0004543 ! tuber created_by: Ramona creation_date: 2010-06-15T12:59:57Z [Term] id: PO:0025069 name: aerial tuber axillary bud meristem namespace: plant_structure def: "A tuber axillary bud meristem that is part of an aerial tuber." [POC:curators] is_a: PO:0025068 ! tuber axillary bud meristem relationship: part_of PO:0004548 ! aerial tuber created_by: Ramona creation_date: 2010-06-15T01:03:59Z [Term] id: PO:0025070 name: subterranean tuber axillary bud meristem namespace: plant_structure def: "A tuber axillary bud meristem that is part of a subterranean tuber." [POC:curators] is_a: PO:0025068 ! tuber axillary bud meristem relationship: part_of PO:0004547 ! subterranean tuber created_by: Ramona creation_date: 2010-06-15T01:03:59Z [Term] id: PO:0025071 name: terminal reproductive bud namespace: plant_structure def: "A terminal bud that develops into a reproductive structure." [POC:curators] xref: OBO_SF_PO:3020771 is_a: PO:0004713 ! terminal bud is_a: PO:0025084 ! reproductive bud created_by: cooperl creation_date: 2010-06-24T01:09:49Z [Term] id: PO:0025072 name: axillary reproductive bud namespace: plant_structure def: "An axillary bud that develops into a reproductive structure." [POC:curators] xref: OBO_SF_PO:3020771 is_a: PO:0004709 ! axillary bud is_a: PO:0025084 ! reproductive bud created_by: cooperl creation_date: 2010-06-24T01:29:20Z [Term] id: PO:0025073 name: branch namespace: plant_structure def: "A shoot axis that develops from an axillary meristem or from equal divisions of the shoot apical meristem." [POC:curators] comment: Branches arise from axillary meristems in vascular plants and from divisions of the shoot apical meristem in non-vascular plants. subset: TraitNet synonym: "higher order axis" NARROW [] synonym: "secondary axis" NARROW [] synonym: "tertiary axis" NARROW [] synonym: "twig" NARROW [] is_a: PO:0025029 ! shoot axis created_by: Ramona creation_date: 2010-07-01T04:21:46Z [Term] id: PO:0025074 name: embryo sac namespace: plant_structure def: "A female gametophyte in angiosperms." [POC:curators] is_a: PO:0020092 ! megagametophyte created_by: Ramona creation_date: 2010-07-01T02:50:36Z [Term] id: PO:0025075 name: non-vascular leaf namespace: plant_structure def: "A leaf in a non-vascular plant." [POC:curators] comment: Include moss and liverwort leaves. Occurs in the gametophytic phase of a plant life cycle. subset: TraitNet synonym: "gametophyte leaf" EXACT [] is_a: PO:0025034 ! leaf created_by: Ramona creation_date: 2010-07-12T01:31:59Z [Term] id: PO:0025076 name: axillary strobilus bud namespace: plant_structure def: "An axillary reproductive bud that develops into a strobilus." [POC:curators] is_a: PO:0025072 ! axillary reproductive bud is_a: PO:0025085 ! strobilus bud created_by: Ramona creation_date: 2010-07-12T02:30:24Z [Term] id: PO:0025077 name: terminal strobilus bud namespace: plant_structure def: "A terminal reproductive bud that develops into a strobilus." [POC:curators] is_a: PO:0025071 ! terminal reproductive bud is_a: PO:0025085 ! strobilus bud created_by: Ramona creation_date: 2010-07-12T02:31:42Z [Term] id: PO:0025078 name: placenta namespace: plant_structure def: "A portion of plant tissue to which ovules or seed are attached." [ISBN:0-7167-1007-2] is_a: PO:0009007 ! portion of plant tissue created_by: Ramona creation_date: 2010-07-13T04:36:23Z [Term] id: PO:0025079 name: aerial tuber axillary shoot namespace: plant_structure def: "An axillary shoot that develops from an aerial tuber axillary bud." [POC:curators] is_a: PO:0025003 ! tuber axillary shoot relationship: part_of PO:0004548 ! aerial tuber created_by: Ramona creation_date: 2010-09-16T03:18:48Z [Term] id: PO:0025080 name: branch internode namespace: plant_structure def: "A shoot internode that is part of a branch." [POC:curators] is_a: PO:0005005 ! shoot internode relationship: part_of PO:0025073 ! branch created_by: Ramona creation_date: 2010-07-16T10:12:21Z [Term] id: PO:0025081 name: subterranean tuber axillary shoot namespace: plant_structure def: "An axillary shoot that develops from a subterranean tuber axillary bud." [POC:curators] comment: See also subterranean tuber axillary bud (PO:0025042). subset: Potato synonym: "tuber sprout" EXACT [] is_a: PO:0025003 ! tuber axillary shoot relationship: part_of PO:0004547 ! subterranean tuber created_by: Ramona creation_date: 2010-09-16T03:18:48Z [Term] id: PO:0025082 name: reproductive shoot system namespace: plant_structure def: "A shoot system in the sporophytic phase that has as part at least one sporangium." [POC:curators] subset: TraitNet is_a: PO:0009006 ! shoot system created_by: Ramona creation_date: 2010-09-17T09:49:10Z [Term] id: PO:0025083 name: strobilus namespace: plant_structure def: "A reproductive shoot system consisting of a number of modified leaves (sporophylls) or ovule-bearing scales grouped terminally on a stem." [ISBN:0716710072, POC:curators] subset: TraitNet synonym: "cone" RELATED [] is_a: PO:0025082 ! reproductive shoot system created_by: Ramona creation_date: 2010-09-17T09:51:22Z [Term] id: PO:0025084 name: reproductive bud namespace: plant_structure def: "A bud that develops into a reproductive shoot system." [POC:curators] subset: TraitNet is_a: PO:0000055 ! bud is_a: PO:0025082 ! reproductive shoot system created_by: Ramona creation_date: 2010-09-17T01:52:05Z [Term] id: PO:0025085 name: strobilus bud namespace: plant_structure def: "A bud that develops into a strobilus." [POC:curators] is_a: PO:0025084 ! reproductive bud created_by: Ramona creation_date: 2010-09-17T01:54:02Z [Term] id: PO:0025086 name: Poaceae gynoecium ridge namespace: plant_structure def: "A gynoecium ridge that is a Poaceae gynoecium in the early stages of development and is characterized as a ridge on the abaxial surface of the Poaceae floret meristem." [PMID:10077498] comment: This term has multiple inheritance because describes an entity at a certain stage in its\ndevelopment. subset: Maize subset: Poaceae synonym: "Poaceae gynoecial ridge" EXACT [] synonym: "Poaceae stylar ridge" EXACT [] is_a: PO:0006384 ! Poaceae gynoecium is_a: PO:0025088 ! gynoecium ridge created_by: Ramona creation_date: 2010-10-25T02:21:15Z [Term] id: PO:0025087 name: Zea gynoecium ridge namespace: plant_structure def: "A Poaceae gynoecium ridge that is a gynoecium of an ear floret in the early stages of development and is characterized as a ridge on the abaxial surface of the ear floret." [POC:curators] comment: This term has multiple inheritance because describes an entity at a certain stage in its\ndevelopment. synonym: "Zea gynoecial ridge" EXACT [] synonym: "Zea stylar ridge" EXACT [ISBN-13:978-0387947358 "Chang and Pareddy chapter"] is_a: PO:0006365 ! gynoecium of ear floret is_a: PO:0025086 ! Poaceae gynoecium ridge created_by: Ramona creation_date: 2010-10-25T02:24:40Z [Term] id: PO:0025088 name: gynoecium ridge namespace: plant_structure def: "A gynoecium in the early stages of development, characterized as a ridge on the abaxial surface of the floral meristem that develops from a gynoecium primordium." [POC:curators] synonym: "gynoecial ridge" EXACT [] synonym: "stylar ridge" EXACT [] is_a: PO:0009062 ! gynoecium relationship: develops_from PO:0000019 ! gynoecium primordium created_by: Ramona creation_date: 2010-10-27T09:19:35Z [Term] id: PO:0025092 name: dehiscence zone namespace: plant_structure def: "A portion of plant tissue that is part of a plant structure and consists of a narrow band of cells that undergoes dehiscence upon maturation of the structure." [POC:curators] xref: GO:0009900 "dehiscence" is_a: PO:0009007 ! portion of plant tissue created_by: Ramona creation_date: 2010-10-27T11:07:17Z [Term] id: PO:0025093 name: moss capsule annulus namespace: plant_structure def: "A dehiscence zone that is part of a moss capsule." [POC:curators] comment: The capsule annulus is located at the base of an operculum. Upon capsule maturation, cell separation in the annulus allows the operculum to separate from the capsule, aiding in spore dispersal. synonym: "capsule dehiscence zone" EXACT [] is_a: PO:0025092 ! dehiscence zone relationship: part_of PO:0025232 ! moss capsule created_by: Ramona creation_date: 2010-10-27T11:16:33Z [Term] id: PO:0025094 name: sporangium namespace: plant_structure def: "A hollow cardinal organ part in which spores are produced." [ISBN:0716710072] comment: May be multicellular or unicellular. subset: TraitNet xref: OBO_SF_PO:3132600 is_a: PO:0025001 ! cardinal organ part created_by: Ramona creation_date: 2010-10-27T11:28:21Z [Term] id: PO:0025095 name: root parenchyma namespace: plant_structure def: "A portion of parenchyma tissue that is part of a root." [POC:curators] is_a: PO:0005421 ! parenchyma relationship: part_of PO:0009005 ! root created_by: Ramona creation_date: 2010-10-28T05:14:26Z [Term] id: PO:0025096 name: carpel epidermis namespace: plant_structure def: "A portion of phyllome epidermis that is part of a carpel." [POC:rw] is_a: PO:0025157 ! phyllome epidermis relationship: part_of PO:0009030 ! carpel created_by: Ramona creation_date: 2010-12-17T12:36:46Z [Term] id: PO:0025097 name: stamen epidermis namespace: plant_structure def: "A portion of phyllome epidermis that is part of a stamen." [POC:rw] is_a: PO:0025157 ! phyllome epidermis relationship: part_of PO:0009029 ! stamen created_by: Ramona creation_date: 2010-12-17T12:36:46Z [Term] id: PO:0025098 name: bract trichome namespace: plant_structure def: "A phyllome trichome that is part of a bract epidermis." [POC:rw] is_a: PO:0025186 ! phyllome trichome relationship: part_of PO:0025158 ! bract epidermis created_by: Ramona creation_date: 2010-12-17T02:04:06Z [Term] id: PO:0025099 name: embryonic plant structure namespace: plant_structure def: "A plant structure that is a proper part of an embryo." [POC:rw] comment: Includes organs, tissues and cell types that are unique to embryos, not cell or tissue types that can occur in both embryos and mature plant structures. xref: OBO_SF_PO:3132547 is_a: PO:0009011 ! plant structure relationship: part_of PO:0009009 ! embryo created_by: Ramona creation_date: 2010-11-05T01:36:24Z [Term] id: PO:0025100 name: shoot internode elongation zone namespace: plant_structure def: "A plant axis elongation zone that is part of a shoot axis internode." [POC:rw] is_a: PO:0025180 ! plant axis elongation zone relationship: part_of PO:0005005 ! shoot internode created_by: Ramona creation_date: 2011-01-03T11:39:43Z [Term] id: PO:0025101 name: branch internode elongation zone namespace: plant_structure def: "A shoot axis internode elongation zone that is part of a branch internode." [POC:rw] is_a: PO:0025100 ! shoot internode elongation zone relationship: part_of PO:0025080 ! branch internode created_by: Ramona creation_date: 2011-01-03T11:43:48Z [Term] id: PO:0025102 name: shoot internode differentiation zone namespace: plant_structure def: "A plant axis differentiation zone that is part of a shoot axis." [POC:rw] is_a: PO:0025119 ! plant axis differentiation zone relationship: part_of PO:0005005 ! shoot internode created_by: Ramona creation_date: 2011-01-03T12:05:20Z [Term] id: PO:0025103 name: branch internode differentiation zone namespace: plant_structure def: "A shoot internode differentiation zone that is part of a branch internode." [POC:rw] is_a: PO:0025102 ! shoot internode differentiation zone relationship: part_of PO:0025080 ! branch internode created_by: Ramona creation_date: 2011-01-03T12:06:50Z [Term] id: PO:0025104 name: first order inflorescence axis namespace: plant_structure def: "An inflorescence axis that is the primary or main axis of an inflorescence." [POC:rw] comment: A first order inflorescence axis consists of either a peduncle alone or a peduncle plus its continuation, depending on the form of the inflorescence. subset: Angiosperm synonym: "inflorescence rachis" EXACT [] synonym: "primary inflorescence axis" EXACT [] is_a: PO:0020122 ! inflorescence axis relationship: has_part PO:0009053 ! peduncle created_by: Ramona creation_date: 2011-01-05T08:41:49Z [Term] id: PO:0025105 name: forth order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a third order inflorescence axis." [POC:rw] is_a: PO:0009081 ! inflorescence branch created_by: Ramona creation_date: 2011-01-05T08:56:27Z [Term] id: PO:0025106 name: fifth order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a forth order inflorescence axis." [POC:rw] is_a: PO:0009081 ! inflorescence branch created_by: Ramona creation_date: 2011-01-05T08:57:49Z [Term] id: PO:0025107 name: sixth order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a fifth order inflorescence axis." [POC:rw] is_a: PO:0009081 ! inflorescence branch created_by: Ramona creation_date: 2011-01-05T08:57:49Z [Term] id: PO:0025108 name: seventh order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a sixth order inflorescence axis." [POC:rw] is_a: PO:0009081 ! inflorescence branch created_by: Ramona creation_date: 2011-01-05T08:57:49Z [Term] id: PO:0025109 name: eighth order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a seventh order inflorescence axis." [POC:rw] is_a: PO:0009081 ! inflorescence branch created_by: Ramona creation_date: 2011-01-05T08:57:49Z [Term] id: PO:0025110 name: ninth order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from an eighth order inflorescence axis." [POC:rw] is_a: PO:0009081 ! inflorescence branch created_by: Ramona creation_date: 2011-01-05T08:57:49Z [Term] id: PO:0025111 name: tenth or higher order inflorescence axis namespace: plant_structure def: "An inflorescence branch arising from a ninth or higher order inflorescence axis." [POC:rw] is_a: PO:0009081 ! inflorescence branch created_by: Ramona creation_date: 2011-01-05T08:57:49Z [Term] id: PO:0025112 name: second order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a first order infructescence axis." [POC:rw] synonym: "primary infructescence branch" EXACT [] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025113 name: third order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a second order infructescence axis." [POC:rw] synonym: "secondary infructescence branch" EXACT [] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025114 name: forth order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a third order infructescence axis." [POC:rw] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025115 name: fifth order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a forth order infructescence axis." [POC:rw] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025116 name: sixth order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a fifth order infructescence axis." [POC:rw] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025117 name: plant anatomical space namespace: plant_structure def: "An anatomical space (CARO:0000005) that is part of a plant." [POC:curators] xref: CARO:0000005 "anatomical space" is_a: PO:0025131 ! plant anatomical entity created_by: Ramona creation_date: 2010-11-10T11:57:16Z [Term] id: PO:0025118 name: anther pore namespace: plant_structure def: "A plant anatomical space that is a pore at the apex of an anther." [POC:rw] comment: Pollen may be released through the anther pore. is_a: PO:0025117 ! plant anatomical space relationship: part_of PO:0009066 ! anther created_by: Ramona creation_date: 2010-12-02T07:41:14Z [Term] id: PO:0025119 name: plant axis differentiation zone namespace: plant_structure def: "A cardinal organ part that is part of a plant axis and is located behind the elongation zone and contains cells that are differentiating into their final form and function." [POC:curators] comment: Primary, not secondary, tissue differentiation occurs in a differentiation zone. is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0025004 ! plant axis created_by: Ramona creation_date: 2010-12-02T09:04:09Z [Term] id: PO:0025120 name: antheridium sperm cell namespace: plant_structure def: "A sperm cell that is produced by an antheridium." [POC:curators] is_a: PO:0000084 ! sperm cell relationship: part_of PO:0025125 ! antheridium created_by: Ramona creation_date: 2010-11-15T08:05:46Z [Term] id: PO:0025121 name: pollen sperm cell namespace: plant_structure def: "A sperm cell that is produced by a microgametophyte." [POC:curators] is_a: PO:0000084 ! sperm cell relationship: part_of PO:0020091 ! microgametophyte created_by: Ramona creation_date: 2010-11-15T08:05:46Z [Term] id: PO:0025122 name: archegonium egg cell namespace: plant_structure def: "An egg cell that is produced by an archegonium." [POC:curators] is_a: PO:0020094 ! egg cell relationship: part_of PO:0025126 ! archegonium created_by: Ramona creation_date: 2010-11-15T08:14:32Z [Term] id: PO:0025123 name: embryo sac egg cell namespace: plant_structure def: "An egg cell that is produced by a megagametophyte." [POC:curators] subset: Angiosperm is_a: PO:0020094 ! egg cell relationship: part_of PO:0020096 ! egg apparatus created_by: Ramona creation_date: 2010-11-15T08:14:32Z [Term] id: PO:0025124 name: gametangium namespace: plant_structure def: "A cardinal organ part that is part of a whole plant in the gametophytic phase and produces gametes." [POC:rw] is_a: PO:0025001 ! cardinal organ part created_by: Ramona creation_date: 2010-11-15T08:57:32Z [Term] id: PO:0025125 name: antheridium namespace: plant_structure def: "A gametangium that produces antheridium sperm cells." [POC:rw] is_a: PO:0025124 ! gametangium created_by: Ramona creation_date: 2010-11-15T08:58:31Z [Term] id: PO:0025126 name: archegonium namespace: plant_structure def: "A gametangium that produces archegonium egg cells." [POC:rw] is_a: PO:0025124 ! gametangium created_by: Ramona creation_date: 2010-11-15T08:58:31Z [Term] id: PO:0025127 name: primordium namespace: plant_structure def: "A portion of plant tissue that differentiates and develops from meristem tissue into a new plant structure." [POC:curators] comment: The primordium is the first distinct form in the development of a plant structure. is_a: PO:0009007 ! portion of plant tissue created_by: Ramona creation_date: 2010-11-15T09:10:22Z [Term] id: PO:0025128 name: phyllome primordium namespace: plant_structure def: "A primordium that will develop into a phyllome." [POC:rw] is_a: PO:0025127 ! primordium created_by: Ramona creation_date: 2010-11-15T09:27:11Z [Term] id: PO:0025129 name: petiole lamina namespace: plant_structure def: "A lamina that is part of a petiole." [POC:curators] comment: The entire petiole may be laminar, or the petiole may be more or less rounded in cross section with laminar extensions. subset: Musa synonym: "petiole wing" NARROW [CO_125:0000005] is_a: PO:0020039 ! leaf lamina relationship: part_of PO:0020038 ! petiole created_by: Ramona creation_date: 2010-11-15T10:28:38Z [Term] id: PO:0025130 name: cigar leaf namespace: plant_structure def: "A leaf near the apex of a stem that is still rolled into a cylinder." [POC:curators] comment: Describes the phenotype of a vascular leaf during a leaf development phase in Musa and other monocots. subset: Musa xref: CO_125:0000008 is_a: PO:0009025 ! vascular leaf created_by: Ramona creation_date: 2010-11-15T11:29:28Z [Term] id: PO:0025131 name: plant anatomical entity namespace: plant_structure def: "An anatomical entity (CARO:0000000) that is or was part of a plant." [POC:curators] comment: Includes both material entities such as plant structures and immaterial entities such as plant anatomical spaces. xref: CARO:0000000 "anatomical entity" created_by: Ramona creation_date: 2010-11-15T11:41:38Z [Term] id: PO:0025132 name: canal namespace: plant_structure def: "A plant anatomical space that is either a groove on the surface or a tube in the interior of a plant structure." [POC:curators] comment: May be cylindrical (PATO:0001203) in shape, with a circular, D-shaped or other irregularly-shaped cross-section. is_a: PO:0025117 ! plant anatomical space created_by: Ramona creation_date: 2010-11-15T11:47:42Z [Term] id: PO:0025133 name: petiole canal namespace: plant_structure def: "A canal that is part of a petiole." [POC:curators] comment: May occur on the surface or be internal. subset: Musa is_a: PO:0025132 ! canal relationship: part_of PO:0020038 ! petiole created_by: Ramona creation_date: 2010-11-15T11:54:00Z [Term] id: PO:0025134 name: inflorescence branch crown namespace: plant_structure def: "A shoot system that forms the basal part of an inflorescence to which the pedicels are attached and in which the internodes do not elongate, giving the appearance of a ridge of raised tissue." [POC:curators] subset: Musa synonym: "banana crown" NARROW [] synonym: "Musa crown" NARROW [CO_125:0000023] is_a: PO:0009006 ! shoot system relationship: part_of PO:0009049 ! inflorescence created_by: Ramona creation_date: 2010-11-15T12:54:56Z [Term] id: PO:0025135 name: cigar leaf lamina abaxial epidermis namespace: plant_structure def: "A portion of leaf lamina abaxial epidermis that covers the abaxial surface of a cigar leaf." [CGP:curators, POC:rw] synonym: "cigar leaf dorsal surface" EXACT [CO_125:0000017] is_a: PO:0000049 ! leaf lamina abaxial epidermis relationship: part_of PO:0025130 ! cigar leaf created_by: Ramona creation_date: 2010-11-15T12:05:45Z [Term] id: PO:0025136 name: free tepal namespace: plant_structure def: "A tepal that is separate from all other tepals." [POC:phenotype] comment: This is a phenotype that is a cross-product of PO:0025136 (tepal) and PATO:0001505 (separated from). subset: Musa xref: CO_125:0000020 is_a: PO:0009033 ! tepal disjoint_from: PO:0025137 ! fused tepal created_by: Ramona creation_date: 2010-11-15T01:06:51Z [Term] id: PO:0025137 name: fused tepal namespace: plant_structure def: "A tepal that is fused to another tepal." [POC:phenotype] comment: May be fused to two tepals (one on either side). This is a phenotype that is a cross-product of PO:0025136 (tepal) and PATO:0000642 (fused with). subset: Musa is_a: PO:0009033 ! tepal disjoint_from: PO:0025136 ! free tepal created_by: Ramona creation_date: 2010-11-15T01:12:18Z [Term] id: PO:0025138 name: fused collective tepal structure namespace: plant_structure def: "A collective tepal structure that has as parts at least two fused tepals." [POC:phenotype] comment: This is a phenotype that is a cross-product of PO:0025021 (collective tepal structure) and PATO:0000642 (fused with). In Musa, there are there are 5 fused tepals which form 3 major lobes and 2 minor lobes. subset: Musa synonym: "compound tepal" RELATED [CO_125:0000021] synonym: "syntepalous perianth" EXACT [] is_a: PO:0025021 ! collective tepal structure relationship: has_part PO:0025137 ! fused tepal created_by: Ramona creation_date: 2010-11-15T01:18:23Z [Term] id: PO:0025139 name: phyllome apex namespace: plant_structure def: "The apical portion of a phyllome." [POC:rw] comment: It is not precisely defined how far toward the base from the tip a phyllome apex extends. For the apical most portion of a phyllome, use the term phyllome tip. is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0006001 ! phyllome created_by: Ramona creation_date: 2010-11-15T01:25:20Z [Term] id: PO:0025140 name: phyllome base namespace: plant_structure def: "The basal part of a phyllome, where it attaches to a shoot axis." [POC:rw] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0006001 ! phyllome created_by: Ramona creation_date: 2010-11-15T01:25:26Z [Term] id: PO:0025141 name: phyllome tip namespace: plant_structure def: "The apical most portion of a phyllome apex." [POC:rw] comment: This term is to be used for only the apical most portion of a phyllome. For a larger area, use the term phyllome apex. Use this term when describing the shape of a phyllome tip. is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0025139 ! phyllome apex created_by: Ramona creation_date: 2010-11-15T01:34:53Z [Term] id: PO:0025142 name: leaf tip namespace: plant_structure def: "A phyllome tip that is part of a leaf apex." [POC:rw] comment: This term is to be used for only the apical most portion of a leaf. For a larger area, use the term leaf apex. Use this term when describing the shape of a leaf tip. is_a: PO:0025141 ! phyllome tip relationship: part_of PO:0020137 ! leaf apex created_by: Ramona creation_date: 2010-11-15T01:36:13Z [Term] id: PO:0025143 name: tepal apex namespace: plant_structure def: "A phyllome apex that is part of a tepal." [POC:rw] comment: It is not precisely defined how far toward the base from the tip a tepal apex extends. For the apical most portion of a tepal, use the term tepal tip. subset: Musa synonym: "compound tepal lobe" NARROW [CO_125:0000031] synonym: "free tepal apex" NARROW [CO_125:0000025] is_a: PO:0025139 ! phyllome apex relationship: part_of PO:0009033 ! tepal created_by: Ramona creation_date: 2010-11-15T01:42:08Z [Term] id: PO:0025144 name: petal apex namespace: plant_structure def: "A phyllome apex that is part of a petal." [POC:rw] comment: It is not precisely defined how far toward the base from the tip a petal apex extends. For the apical most portion of a petal, use the term petal tip. is_a: PO:0025139 ! phyllome apex relationship: part_of PO:0009032 ! petal created_by: Ramona creation_date: 2010-11-15T01:43:22Z [Term] id: PO:0025145 name: sepal apex namespace: plant_structure def: "A phyllome apex that is part of a sepal." [POC:rw] comment: It is not precisely defined how far toward the base from the tip a sepal apex extends. For the apical most portion of a sepal, use the term sepal tip. is_a: PO:0025139 ! phyllome apex relationship: part_of PO:0009031 ! sepal created_by: Ramona creation_date: 2010-11-15T01:43:23Z [Term] id: PO:0025146 name: petal base namespace: plant_structure def: "A phyllome base that is part of a petal." [POC:rw] is_a: PO:0025140 ! phyllome base relationship: part_of PO:0009032 ! petal created_by: Ramona creation_date: 2010-11-15T01:47:57Z [Term] id: PO:0025147 name: sepal base namespace: plant_structure def: "A phyllome base that is part of a sepal." [POC:rw] is_a: PO:0025140 ! phyllome base relationship: part_of PO:0009031 ! sepal created_by: Ramona creation_date: 2010-11-15T01:47:58Z [Term] id: PO:0025148 name: tepal base namespace: plant_structure def: "A phyllome base that is part of a tepal." [POC:rw] is_a: PO:0025140 ! phyllome base relationship: part_of PO:0009033 ! tepal created_by: Ramona creation_date: 2010-11-15T01:47:58Z [Term] id: PO:0025149 name: petal tip namespace: plant_structure def: "A phyllome tip that is part of a petal apex." [POC:rw] comment: This term is to be used for only the apical most portion of a petal. For a larger area, use the term petal apex. Use this term when describing the shape of a petal tip. is_a: PO:0025141 ! phyllome tip relationship: part_of PO:0025144 ! petal apex created_by: Ramona creation_date: 2010-11-15T01:49:36Z [Term] id: PO:0025150 name: sepal tip namespace: plant_structure def: "A phyllome tip that is part of a sepal apex." [POC:rw] comment: This term is to be used for only the apical most portion of a sepal. For a larger area, use the term sepal apex. Use this term when describing the shape of a sepal tip. is_a: PO:0025141 ! phyllome tip relationship: part_of PO:0025145 ! sepal apex created_by: Ramona creation_date: 2010-11-15T01:49:36Z [Term] id: PO:0025151 name: tepal tip namespace: plant_structure def: "A phyllome tip that is part of a tepal apex." [POC:rw] comment: This term is to be used for only the apical most portion of a tepal. For a larger area, use the term tepal apex. Use this term when describing the shape of a tepal tip. is_a: PO:0025141 ! phyllome tip relationship: part_of PO:0025143 ! tepal apex created_by: Ramona creation_date: 2010-11-15T01:49:37Z [Term] id: PO:0025152 name: peduncle epidermis namespace: plant_structure def: "A portion of branch epidermis that is part of a peduncle." [POC:curators] subset: Musa synonym: "peduncle surface" RELATED [CO_125:0000036] is_a: PO:0025179 ! branch epidermis relationship: part_of PO:0009053 ! peduncle created_by: Ramona creation_date: 2010-11-15T02:08:11Z [Term] id: PO:0025153 name: peduncle trichome namespace: plant_structure def: "A shoot axis trichome that is part of a peduncle epidermis." [POC:rw] subset: Musa synonym: "peduncle hair" EXACT [CO_125:0000051] is_a: PO:0005003 ! shoot axis trichome relationship: part_of PO:0025152 ! peduncle epidermis created_by: Ramona creation_date: 2010-11-15T02:14:05Z [Term] id: PO:0025154 name: bract apex namespace: plant_structure def: "A phyllome apex that is part of a bract." [POC:rw] comment: It is not precisely defined how far toward the base from the tip a bract apex extends. For the apical most portion of a bract, use the term bract tip. subset: Musa xref: CO_125:0000053 is_a: PO:0025139 ! phyllome apex relationship: part_of PO:0009055 ! bract created_by: Ramona creation_date: 2010-11-15T02:21:05Z [Term] id: PO:0025155 name: bract base namespace: plant_structure def: "A phyllome base that is part of a bract." [POC:rw] subset: Musa xref: CO_125:0000056 is_a: PO:0025140 ! phyllome base relationship: part_of PO:0009055 ! bract created_by: Ramona creation_date: 2010-11-15T02:22:45Z [Term] id: PO:0025156 name: bract tip namespace: plant_structure def: "A phyllome tip that is part of a bract apex." [POC:rw] comment: This term is to be used for only the apical most portion of a bract. For a larger area, use the term bract apex. Use this term when describing the shape of a bract tip. is_a: PO:0025141 ! phyllome tip created_by: Ramona creation_date: 2010-11-15T02:23:56Z [Term] id: PO:0025157 name: phyllome epidermis namespace: plant_structure def: "A portion of shoot epidermis that is part of a phyllome." [POC:curators] is_a: PO:0006035 ! shoot epidermis relationship: part_of PO:0006001 ! phyllome created_by: Ramona creation_date: 2010-11-15T02:32:53Z [Term] id: PO:0025158 name: bract epidermis namespace: plant_structure def: "A portion of phyllome epidermis that is part of a bract." [POC:rw] is_a: PO:0025157 ! phyllome epidermis relationship: part_of PO:0009055 ! bract created_by: Ramona creation_date: 2010-11-15T02:34:14Z [Term] id: PO:0025159 name: bract abaxial epidermis namespace: plant_structure def: "A portion of bract epidermis that covers the abaxial/lower surface of a bract." [POC:rw] subset: Musa synonym: "bract external face" EXACT [CO_125:0000054] is_a: PO:0025158 ! bract epidermis created_by: Ramona creation_date: 2010-11-15T02:35:37Z [Term] id: PO:0025160 name: bract adaxial epidermis namespace: plant_structure def: "A portion of bract epidermis that covers the adaxial/upper surface of a bract." [POC:rw] subset: Musa synonym: "bract internal face" EXACT [CO_125:0000055] is_a: PO:0025158 ! bract epidermis created_by: Ramona creation_date: 2010-11-15T02:35:37Z [Term] id: PO:0025161 name: portion of plant substance namespace: plant_structure def: "A portion of organism substance (CARO:0000004) that is or was part of a plant." [POC:curators] comment: Can include substances like latex, xylem sap, phloem sap, resin, mucilage, oil, cuticle, cutin, sporopollenin. xref: CARO:0000004 "portion of organism substance" is_a: PO:0025131 ! plant anatomical entity created_by: Ramona creation_date: 2010-11-18T07:32:44Z [Term] id: PO:0025162 name: multicellular trichome namespace: plant_structure def: "A portion of plant tissue that forms a non-sclerified outgrowth from the epidermis." [POC:curators] comment: Can vary in size and complexity. May contain a secretory gland. synonym: "non-glandular multicelluar trichome" NARROW [] synonym: "non-secretory multicellular trichome" NARROW [] is_a: PO:0000282 ! trichome is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0004013 ! epidermal cell created_by: Ramona creation_date: 2010-11-18T07:46:34Z [Term] id: PO:0025163 name: multicellular trichome branch cell namespace: plant_structure def: "A trichome cell that forms a branch of a multicellular trichome." [POC:curators] comment: For branches of a unicellular trichome, see unicellular trichome branch (GO:0090405) in GO. is_a: PO:0008030 ! trichome cell relationship: part_of PO:0025162 ! multicellular trichome created_by: Ramona creation_date: 2010-11-18T08:01:29Z [Term] id: PO:0025164 name: root epidermal cell namespace: plant_structure def: "An epidermal cell that is part of a root epidermis." [POC:curators] is_a: PO:0004013 ! epidermal cell relationship: part_of PO:0006036 ! root epidermis created_by: Ramona creation_date: 2010-11-18T10:29:44Z [Term] id: PO:0025165 name: shoot epidermal cell namespace: plant_structure def: "An epidermal cell that is part of a shoot epidermis." [POC:curators] is_a: PO:0004013 ! epidermal cell relationship: part_of PO:0006035 ! shoot epidermis created_by: Ramona creation_date: 2010-11-18T10:29:44Z [Term] id: PO:0025166 name: papilla cell namespace: plant_structure def: "An epidermal pavement cell with a short protuberance." [POC:curators] comment: See plant cell papilla (GO:0090395) for the subcellular component papilla. is_a: PO:0000332 ! epidermal pavement cell created_by: Ramona creation_date: 2010-11-18T05:25:37Z [Term] id: PO:0025167 name: leaf papilla cell namespace: plant_structure def: "A papilla cell that is part of a leaf epidermis." [POC:curators] comment: See leaf papilla (GO:0090396) for the subcellular component leaf papilla. is_a: PO:0025166 ! papilla cell relationship: part_of PO:0006016 ! leaf epidermis created_by: Ramona creation_date: 2010-11-18T05:37:23Z [Term] id: PO:0025168 name: stigma papilla cell namespace: plant_structure def: "A papilla cell that is part of a stigma epidermis." [POC:curators] comment: See stigma papilla (GO:0090397) for the subcellular component stigma papilla. is_a: PO:0025166 ! papilla cell relationship: part_of PO:0006061 ! stigma epidermis created_by: Ramona creation_date: 2010-11-18T05:37:23Z [Term] id: PO:0025169 name: prickle namespace: plant_structure def: "A portion of epidermis that is a sclerified outgrowth." [POC:curators] comment: Often found on stems and leaves. is_a: PO:0005679 ! epidermis created_by: Ramona creation_date: 2010-11-18T07:47:30Z [Term] id: PO:0025170 name: root prickle namespace: plant_structure def: "A prickle that is part of a root epidermis." [POC:curators] is_a: PO:0025169 ! prickle relationship: part_of PO:0006036 ! root epidermis created_by: Ramona creation_date: 2010-11-18T07:47:30Z [Term] id: PO:0025171 name: shoot axis prickle namespace: plant_structure def: "A prickle that is part of a shoot axis epidermis." [POC:curators] is_a: PO:0025169 ! prickle relationship: part_of PO:0000112 ! shoot axis epidermis created_by: Ramona creation_date: 2010-11-18T07:47:30Z [Term] id: PO:0025172 name: thorn namespace: plant_structure def: "A branch that is a sclerified, pointed outgrowth." [POC:curators] comment: A thorn is a short, pointed (PATO:0002258) woody structure, may be branched. is_a: PO:0025073 ! branch created_by: Ramona creation_date: 2010-11-18T08:07:48Z [Term] id: PO:0025173 name: leaf spine namespace: plant_structure def: "A leaf that is a sclerified and pointed and lacks a lamina." [PATO:0002258 "pointed", POC:curators] comment: See also stipule spine (PO:0025174). is_a: PO:0009025 ! vascular leaf created_by: Ramona creation_date: 2010-11-18T08:10:24Z [Term] id: PO:0025174 name: stipule spine namespace: plant_structure def: "A stipule that is sclerified and pointed." [PATO:0002258 "pointed", POC:curators] comment: See also leaf spine (PO:0025173). is_a: PO:0020041 ! stipule created_by: Ramona creation_date: 2010-11-18T08:14:18Z [Term] id: PO:0025175 name: leaf prickle namespace: plant_structure def: "A prickle that is part of a leaf epidermis." [POC:curators] is_a: PO:0025169 ! prickle relationship: part_of PO:0006016 ! leaf epidermis created_by: Ramona creation_date: 2010-11-22T09:35:01Z [Term] id: PO:0025176 name: stem trichome namespace: plant_structure def: "A shoot axis trichome that is part of a stem epidermis." [POC:rw] synonym: "stem hair" EXACT [] is_a: PO:0005003 ! shoot axis trichome relationship: part_of PO:0025178 ! stem epidermis created_by: Ramona creation_date: 2010-11-22T09:54:46Z [Term] id: PO:0025177 name: branch trichome namespace: plant_structure def: "A shoot axis trichome that is part of a branch epidermis." [POC:rw] synonym: "branch hair" EXACT [] is_a: PO:0005003 ! shoot axis trichome relationship: part_of PO:0025179 ! branch epidermis created_by: Ramona creation_date: 2010-11-22T09:54:46Z [Term] id: PO:0025178 name: stem epidermis namespace: plant_structure def: "A portion of shoot axis epidermis that is part of a stem." [POC:rw] is_a: PO:0000112 ! shoot axis epidermis relationship: part_of PO:0009047 ! stem created_by: Ramona creation_date: 2010-11-22T09:56:21Z [Term] id: PO:0025179 name: branch epidermis namespace: plant_structure def: "A portion of shoot axis epidermis that is part of a branch." [POC:rw] is_a: PO:0000112 ! shoot axis epidermis relationship: part_of PO:0025073 ! branch created_by: Ramona creation_date: 2010-11-22T09:58:06Z [Term] id: PO:0025180 name: plant axis elongation zone namespace: plant_structure def: "A cardinal organ part that is part of a plant axis that is located directly behind an apical meristem, in which the cells are undergoing longitudinal expansion." [POC:curators] is_a: PO:0025001 ! cardinal organ part relationship: part_of PO:0025004 ! plant axis created_by: Ramona creation_date: 2010-12-03T08:50:10Z [Term] id: PO:0025181 name: root elongation zone namespace: plant_structure def: "A plant axis elongation zone that is part of a root tip and located directly behind the root apical meristem." [POC:curators] comment: The root elongation zone is only a few millimeters in length and is the only portion of the root in which cell elongation generally occurs. Root hairs are not yet produced in this region. Primary root tissues begin to differentiate in the root elongation zone. This term replaces elongation zone (PO:0020125). is_a: PO:0025180 ! plant axis elongation zone relationship: part_of PO:0000025 ! root tip created_by: Ramona creation_date: 2010-12-03T08:54:52Z [Term] id: PO:0025182 name: sepal trichome namespace: plant_structure def: "A phyllome trichome that is part of a sepal epidermis." [POC:rw] is_a: PO:0025186 ! phyllome trichome relationship: part_of PO:0006040 ! sepal epidermis created_by: Ramona creation_date: 2010-12-06T01:11:21Z [Term] id: PO:0025183 name: leaf stomatal complex namespace: plant_structure def: "A phyllome stomatal complex that is part of a leaf epidermis." [POC:rw] is_a: PO:0025215 ! phyllome stomatal complex relationship: has_part PO:0025235 ! leaf stomatal pore relationship: has_part PO:0025237 ! leaf guard cell relationship: part_of PO:0006016 ! leaf epidermis created_by: Ramona creation_date: 2010-12-09T11:47:55Z [Term] id: PO:0025184 name: tepal epidermis namespace: plant_structure def: "A portion of phyllome epidermis that is part of a tepal." [POC:rw] is_a: PO:0025157 ! phyllome epidermis relationship: part_of PO:0009033 ! tepal created_by: Ramona creation_date: 2010-12-06T01:15:36Z [Term] id: PO:0025185 name: leaf lamina stomatal complex namespace: plant_structure def: "A leaf stomatal complex that is part of a leaf lamina epidermis." [POC:rw] is_a: PO:0025183 ! leaf stomatal complex relationship: part_of PO:0000047 ! leaf lamina epidermis created_by: Ramona creation_date: 2010-12-09T11:49:35Z [Term] id: PO:0025186 name: phyllome trichome namespace: plant_structure def: "A trichome that is part of a phyllome epidermis." [POC:rw] is_a: PO:0000282 ! trichome created_by: Ramona creation_date: 2010-12-06T01:17:31Z [Term] id: PO:0025187 name: petal trichome namespace: plant_structure def: "A phyllome trichome that is part of a petal epidermis." [POC:rw] is_a: PO:0025186 ! phyllome trichome relationship: part_of PO:0006041 ! petal epidermis created_by: Ramona creation_date: 2010-12-06T01:18:53Z [Term] id: PO:0025188 name: tepal trichome namespace: plant_structure def: "A phyllome trichome that is part of a tepal epidermis." [POC:rw] is_a: PO:0025186 ! phyllome trichome relationship: part_of PO:0025184 ! tepal epidermis created_by: Ramona creation_date: 2010-12-06T01:18:53Z [Term] id: PO:0025189 name: petiole stomatal complex namespace: plant_structure def: "A leaf stomatal complex that is part of a petiole epidermis." [POC:rw] is_a: PO:0025183 ! leaf stomatal complex relationship: part_of PO:0000051 ! petiole epidermis created_by: Ramona creation_date: 2010-12-09T11:49:35Z [Term] id: PO:0025190 name: leaf abaxial stomatal complex namespace: plant_structure def: "A leaf stomatal complex that is part of a leaf abaxial epidermis." [POC:rw] is_a: PO:0025183 ! leaf stomatal complex relationship: part_of PO:0006019 ! leaf abaxial epidermis created_by: Ramona creation_date: 2010-12-17T03:01:55Z [Term] id: PO:0025191 name: leaf adaxial stomatal complex namespace: plant_structure def: "A leaf stomatal complex that is part of a leaf adaxial epidermis." [POC:rw] is_a: PO:0025183 ! leaf stomatal complex relationship: part_of PO:0006018 ! leaf adaxial epidermis created_by: Ramona creation_date: 2010-12-17T03:01:55Z [Term] id: PO:0025192 name: tepal abaxial epidermis namespace: plant_structure def: "A portion of tepal epidermis that covers the abaxial/lower surface of a tepal." [POC:rw] is_a: PO:0025184 ! tepal epidermis created_by: Ramona creation_date: 2010-12-20T07:49:04Z [Term] id: PO:0025193 name: tepal adaxial epidermis namespace: plant_structure def: "A portion of tepal epidermis that covers the adaxial/upper surface of a tepal." [POC:rw] is_a: PO:0025184 ! tepal epidermis created_by: Ramona creation_date: 2010-12-20T07:49:04Z [Term] id: PO:0025194 name: root nodule meristem namespace: plant_structure def: "A root meristem that gives rise to a root nodule." [PMID:1809347, POC:rw] xref: PMID:1809347 is_a: PO:0006085 ! root meristem created_by: Ramona creation_date: 2010-12-09T01:39:55Z [Term] id: PO:0025195 name: pollen tube cell namespace: plant_structure def: "A plant cell that develops from a vegetative cell and forms a tubular extension of the pollen grain." [POC:rw] comment: Carries the male gametes to into or near the ovule. May be branched in gymnosperms. See GO for pollen tube (GO:0090406) or pollen tube tip (GO:0090404). xref: OBO_SF_PO:3093226 is_a: PO:0009002 ! plant cell relationship: develops_from PO:0020099 ! vegetative cell created_by: Ramona creation_date: 2010-12-09T02:11:17Z [Term] id: PO:0025196 name: basal endosperm transfer layer namespace: plant_structure def: "A portion of plant tissue that is part of an endosperm and is composed of basal endosperm transfer cells." [POC:rw] comment: Involved in transferring nutrients to an embryo. xref: OBO_SF_PO:3132534 is_a: PO:0009007 ! portion of plant tissue relationship: has_part PO:0009018 ! basal endosperm transfer cell relationship: part_of PO:0009089 ! endosperm created_by: Ramona creation_date: 2010-12-09T02:23:04Z [Term] id: PO:0025197 name: stele namespace: plant_structure def: "A cardinal organ part that is the central column of a plant axis that consists of the primary vascular tissue and associated ground tissue." [POC:curators] comment: If a pith is present, it is part of the stele, otherwise the stele only includes the primary vascular tissue and the ground tissue that surrounds it. xref: OBO_SF_PO:3080915 is_a: PO:0025001 ! cardinal organ part created_by: Ramona creation_date: 2010-12-09T03:56:19Z [Term] id: PO:0025198 name: shoot axis stele namespace: plant_structure def: "A stele that is part of a shoot axis." [POC:rw] is_a: PO:0025197 ! stele relationship: part_of PO:0025029 ! shoot axis created_by: Ramona creation_date: 2010-12-09T03:58:34Z [Term] id: PO:0025199 name: branch stele namespace: plant_structure def: "A shoot axis stele that is part of a branch." [POC:rw] is_a: PO:0025198 ! shoot axis stele relationship: part_of PO:0025073 ! branch created_by: Ramona creation_date: 2010-12-09T03:59:35Z [Term] id: PO:0025200 name: stem stele namespace: plant_structure def: "A shoot axis stele that is part of a stem." [POC:rw] is_a: PO:0025198 ! shoot axis stele relationship: part_of PO:0009047 ! stem created_by: Ramona creation_date: 2010-12-09T03:59:35Z [Term] id: PO:0025201 name: megasporangium namespace: plant_structure def: "A sporangium in which megaspores are produced." [ISBN:0716710072] xref: OBO_SF_PO:3132602 is_a: PO:0025094 ! sporangium created_by: Ramona creation_date: 2010-12-09T04:05:41Z [Term] id: PO:0025202 name: microsporangium namespace: plant_structure def: "A sporangium in which microspores are produced." [ISBN:0716710072] xref: OBO_SF_PO:3132609 is_a: PO:0025094 ! sporangium created_by: Ramona creation_date: 2010-12-09T04:05:41Z [Term] id: PO:0025203 name: pericarp vascular bundle namespace: plant_structure def: "A vascular bundle that is part of a pericarp." [POC:rw] is_a: PO:0005020 ! vascular bundle relationship: part_of PO:0009084 ! pericarp created_by: Ramona creation_date: 2010-12-17T08:16:40Z [Term] id: PO:0025204 name: rhizome internode namespace: plant_structure def: "A shoot axis internode that is part of a rhizome." [POC:rw] xref: OBO_SF_PO:1766539 is_a: PO:0005005 ! shoot internode relationship: part_of PO:0004542 ! rhizome created_by: Ramona creation_date: 2010-12-17T09:22:47Z [Term] id: PO:0025205 name: shoot system vascular system namespace: plant_structure def: "A vascular system that is part of a shoot system." [POC:rw] xref: OBO_SF_PO:2285839 is_a: PO:0000034 ! vascular system relationship: part_of PO:0009006 ! shoot system created_by: Ramona creation_date: 2010-12-17T09:34:58Z [Term] id: PO:0025206 name: phyllome vascular system namespace: plant_structure def: "A vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a phyllome." [POC:rw] is_a: PO:0000034 ! vascular system relationship: part_of PO:0006001 ! phyllome relationship: part_of PO:0025205 ! shoot system vascular system created_by: Ramona creation_date: 2010-12-17T10:11:07Z [Term] id: PO:0025207 name: tepal vascular system namespace: plant_structure def: "A phyllome vascular system that includes the totality of the portions of vascular tissue in their specific arrangement in a tepal." [POC:rw] is_a: PO:0025206 ! phyllome vascular system relationship: part_of PO:0005017 ! flower vascular system relationship: part_of PO:0009033 ! tepal created_by: Ramona creation_date: 2010-12-17T10:28:52Z [Term] id: PO:0025208 name: carpel trichome namespace: plant_structure def: "A phyllome trichome that is part of a bract epidermis." [POC:rw] is_a: PO:0025186 ! phyllome trichome relationship: part_of PO:0025096 ! carpel epidermis created_by: Ramona creation_date: 2010-12-17T02:04:36Z [Term] id: PO:0025209 name: stamen trichome namespace: plant_structure def: "A phyllome trichome that is part of a stamen epidermis." [POC:rw] is_a: PO:0025186 ! phyllome trichome relationship: part_of PO:0025097 ! stamen epidermis created_by: Ramona creation_date: 2010-12-17T02:04:36Z [Term] id: PO:0025210 name: leaf abaxial trichome namespace: plant_structure def: "A leaf trichome that is part of a leaf abaxial epidermis." [POC:rw] is_a: PO:0006504 ! leaf trichome relationship: part_of PO:0006019 ! leaf abaxial epidermis created_by: Ramona creation_date: 2010-12-17T02:08:36Z [Term] id: PO:0025211 name: leaf adaxial trichome namespace: plant_structure def: "A leaf trichome that is part of a leaf adaxial epidermis." [POC:rw] is_a: PO:0006504 ! leaf trichome relationship: part_of PO:0006018 ! leaf adaxial epidermis created_by: Ramona creation_date: 2010-12-17T02:08:37Z [Term] id: PO:0025212 name: leaf pavement cell namespace: plant_structure def: "An epidermal pavement cell that is part of a leaf epidermis." [POC:rw] is_a: PO:0000332 ! epidermal pavement cell relationship: part_of PO:0006016 ! leaf epidermis created_by: Ramona creation_date: 2010-12-17T02:47:25Z [Term] id: PO:0025213 name: leaf abaxial pavement cell namespace: plant_structure def: "A leaf pavement cell that is part of a leaf abaxial epidermis." [POC:rw] is_a: PO:0025212 ! leaf pavement cell relationship: part_of PO:0006019 ! leaf abaxial epidermis created_by: Ramona creation_date: 2010-12-17T02:52:02Z [Term] id: PO:0025214 name: leaf adaxial pavement cell namespace: plant_structure def: "A leaf pavement cell that is part of a leaf adaxial epidermis." [POC:rw] is_a: PO:0025212 ! leaf pavement cell relationship: part_of PO:0006018 ! leaf adaxial epidermis created_by: Ramona creation_date: 2010-12-17T02:52:02Z [Term] id: PO:0025215 name: phyllome stomatal complex namespace: plant_structure def: "A stomatal complex that is part of a phyllome epidermis." [POC:rw] is_a: PO:0002000 ! stomatal complex relationship: has_part PO:0025234 ! phyllome stomatal pore relationship: has_part PO:0025236 ! phyllome guard cell relationship: part_of PO:0025157 ! phyllome epidermis created_by: Ramona creation_date: 2010-12-20T08:23:11Z [Term] id: PO:0025216 name: bract stomatal complex namespace: plant_structure def: "A phyllome stomatal complex that is part of a bract epidermis." [POC:rw] is_a: PO:0025215 ! phyllome stomatal complex relationship: part_of PO:0025158 ! bract epidermis created_by: Ramona creation_date: 2010-12-20T08:27:52Z [Term] id: PO:0025217 name: carpel stomatal complex namespace: plant_structure def: "A phyllome stomatal complex that is part of a carpel epidermis." [POC:rw] is_a: PO:0025215 ! phyllome stomatal complex relationship: part_of PO:0025096 ! carpel epidermis created_by: Ramona creation_date: 2010-12-20T08:27:52Z [Term] id: PO:0025218 name: petal stomatal complex namespace: plant_structure def: "A phyllome stomatal complex that is part of a petal epidermis." [POC:rw] is_a: PO:0025215 ! phyllome stomatal complex relationship: part_of PO:0006041 ! petal epidermis created_by: Ramona creation_date: 2010-12-20T08:27:52Z [Term] id: PO:0025219 name: sepal stomatal complex namespace: plant_structure def: "A phyllome stomatal complex that is part of a sepal epidermis." [POC:rw] is_a: PO:0025215 ! phyllome stomatal complex relationship: part_of PO:0006040 ! sepal epidermis created_by: Ramona creation_date: 2010-12-20T08:27:52Z [Term] id: PO:0025220 name: stamen stomatal complex namespace: plant_structure def: "A phyllome stomatal complex that is part of a stamen epidermis." [POC:rw] is_a: PO:0025215 ! phyllome stomatal complex relationship: part_of PO:0025097 ! stamen epidermis created_by: Ramona creation_date: 2010-12-20T08:27:52Z [Term] id: PO:0025221 name: tepal stomatal complex namespace: plant_structure def: "A phyllome stomatal complex that is part of a tepal epidermis." [POC:rw] is_a: PO:0025215 ! phyllome stomatal complex relationship: part_of PO:0025184 ! tepal epidermis created_by: Ramona creation_date: 2010-12-20T08:27:52Z [Term] id: PO:0025222 name: reproductive shoot apex namespace: plant_structure def: "A shoot apex that has as part a reproductive shoot apical meristem." [POC:rw] is_a: PO:0000037 ! shoot apex relationship: has_part PO:0008028 ! reproductive shoot apical meristem created_by: Ramona creation_date: 2010-12-20T08:47:03Z [Term] id: PO:0025223 name: vegetative shoot apex namespace: plant_structure def: "A shoot apex that has as part a vegetative shoot apical meristem." [POC:rw] is_a: PO:0000037 ! shoot apex relationship: has_part PO:0008016 ! vegetative shoot apical meristem created_by: Ramona creation_date: 2010-12-20T08:47:03Z [Term] id: PO:0025224 name: axil namespace: plant_structure def: "A plant anatomical space that is the space between a shoot axis and a leaf, bract, or branch that branches from the shoot axis." [POC:curators] is_a: PO:0025117 ! plant anatomical space created_by: Ramona creation_date: 2010-12-20T08:59:45Z [Term] id: PO:0025225 name: bract axil namespace: plant_structure def: "An axil that is the space between a shoot axis and a bract that branches from the shoot axis." [POC:rw] is_a: PO:0025224 ! axil created_by: Ramona creation_date: 2010-12-20T09:03:32Z [Term] id: PO:0025226 name: branch axil namespace: plant_structure def: "An axil that is the space between a shoot axis and a branch that branches from the shoot axis." [POC:rw] is_a: PO:0025224 ! axil created_by: Ramona creation_date: 2010-12-20T09:03:32Z [Term] id: PO:0025227 name: tetrad of megaspores namespace: plant_structure def: "A portion of plant tissue consisting of four megaspores that remained joined together shortly after meiosis. One cell will give rise to a female gametophyte." [POC:rw] comment: Usually only one of the four megaspores develops and the other three die. is_a: PO:0009007 ! portion of plant tissue relationship: develops_from PO:0000431 ! megasporocyte relationship: has_part PO:0020019 ! megaspore created_by: Ramona creation_date: 2010-12-20T09:08:29Z [Term] id: PO:0025228 name: valve namespace: plant_structure def: "A cardinal organ part that is a part of a plant structure that splits apart when the structure dehisces." [POC:rw] xref: OBO_SF_PO:3132512 is_a: PO:0025001 ! cardinal organ part created_by: Ramona creation_date: 2010-12-20T09:21:21Z [Term] id: PO:0025229 name: moss capsule valve namespace: plant_structure def: "A valve that is a part of a moss capsule that splits apart when the moss capsule dehisces." [POC:rw] comment: A moss capsule may dehisce ongitudinally, forming evenely sized valves, or it may dehisce at the capsule annulus, forming the operculum, which is a specialized type of valve. xref: OBO_SF_PO:3132512 is_a: PO:0025228 ! valve relationship: part_of PO:0025232 ! moss capsule created_by: Ramona creation_date: 2010-12-20T09:25:07Z [Term] id: PO:0025230 name: columella namespace: plant_structure def: "A portion of plant tissue that forms the central axis of a plant structure such as a fruit or moss capsule." [POC:curators] xref: OBO_SF_PO:3132522 is_a: PO:0009007 ! portion of plant tissue created_by: Ramona creation_date: 2010-12-20T09:32:11Z [Term] id: PO:0025231 name: moss capsule columella namespace: plant_structure def: "A columella that forms the central axis of a moss capsule." [POC:rw] xref: OBO_SF_PO:3132522 is_a: PO:0025230 ! columella relationship: part_of PO:0025232 ! moss capsule created_by: Ramona creation_date: 2010-12-20T09:34:34Z [Term] id: PO:0025232 name: moss capsule namespace: plant_structure def: "A sporangium in mosses." [POC:rw] xref: OBO_SF_PO:3140824 is_a: PO:0025094 ! sporangium created_by: Ramona creation_date: 2010-12-20T09:39:26Z [Term] id: PO:0025233 name: embryonic plant tissue namespace: plant_structure def: "A portion of plant tissue that is part of an embryo." [POC:rw] comment: This class is for tissues that only occur as part of an embryo. is_a: PO:0025099 ! embryonic plant structure created_by: Ramona creation_date: 2010-12-20T12:27:10Z [Term] id: PO:0025234 name: phyllome stomatal pore namespace: plant_structure def: "A stomatal pore that is part of a phyllome stomatal complex." [POC:curators] is_a: PO:0008032 ! stomatal pore relationship: part_of PO:0025215 ! phyllome stomatal complex created_by: Ramona creation_date: 2010-12-29T01:33:50Z [Term] id: PO:0025235 name: leaf stomatal pore namespace: plant_structure def: "A phyllome stomatal pore that is part of a leaf stomatal complex." [POC:rw] is_a: PO:0025234 ! phyllome stomatal pore relationship: part_of PO:0025183 ! leaf stomatal complex created_by: Ramona creation_date: 2010-12-29T01:38:03Z [Term] id: PO:0025236 name: phyllome guard cell namespace: plant_structure def: "A guard cell that is part of a phyllome stomatal complex." [POC:curators] is_a: PO:0000293 ! guard cell relationship: part_of PO:0025215 ! phyllome stomatal complex created_by: Ramona creation_date: 2010-12-29T01:40:14Z [Term] id: PO:0025237 name: leaf guard cell namespace: plant_structure def: "A phyllome guard cell that is part of a leaf stomatal complex." [POC:rw] is_a: PO:0025236 ! phyllome guard cell relationship: part_of PO:0025183 ! leaf stomatal complex created_by: Ramona creation_date: 2010-12-29T01:44:27Z [Term] id: PO:0025238 name: abaxial petiole canal namespace: plant_structure def: "A petiole canal on the abaxial surface of a petiole." [POC:rw] is_a: PO:0025133 ! petiole canal created_by: Ramona creation_date: 2010-12-30T02:09:39Z [Term] id: PO:0025239 name: adaxial petiole canal namespace: plant_structure def: "A petiole canal on the adaxial surface of a petiole." [POC:rw] xref: CO_125:0000012 is_a: PO:0025133 ! petiole canal created_by: Ramona creation_date: 2010-12-30T02:09:39Z [Term] id: PO:0025240 name: second order inflorescence namespace: plant_structure def: "A reproductive shoot system that is part of an inflorescence and has a parts a second order inflorescence branch and any shoot axes and flowers that arise from that branch." [POC:rw] comment: This a branch of the inflorescence that arises from the main axis. subset: Angiosperm synonym: "secondary inflorescence" EXACT [] is_a: PO:0025082 ! reproductive shoot system relationship: has_part PO:0006321 ! second order inflorescence axis relationship: has_part PO:0009046 ! flower relationship: part_of PO:0009049 ! inflorescence created_by: Ramona creation_date: 2010-12-30T03:31:29Z [Term] id: PO:0025241 name: second order infructescence namespace: plant_structure def: "A reproductive shoot system that is part of an infructescence and has as parts a second order infructescence axis and any infructescence axes and fruits that arise from it." [POC:rw] subset: Angiosperm subset: Musa synonym: "hand of bananas" NARROW [] synonym: "hand of fruit" EXACT [CO_125:.0000037] synonym: "secondary infructescence" EXACT [] is_a: PO:0025082 ! reproductive shoot system relationship: has_part PO:0009001 ! fruit relationship: has_part PO:0025112 ! second order infructescence axis relationship: part_of PO:0006342 ! infructescence created_by: Ramona creation_date: 2010-12-30T03:31:29Z [Term] id: PO:0025242 name: infructescence axis namespace: plant_structure def: "A shoot axis that is part of an infructescence." [POC:rw] is_a: PO:0025029 ! shoot axis relationship: develops_from PO:0020122 ! inflorescence axis relationship: part_of PO:0006342 ! infructescence created_by: Ramona creation_date: 2010-12-30T03:34:07Z [Term] id: PO:0025243 name: infructescence branch namespace: plant_structure def: "An infructescence axis that is a branch from a primary or higher order infructescence axis." [POC:rw] is_a: PO:0025242 ! infructescence axis created_by: Ramona creation_date: 2010-12-30T03:37:08Z [Term] id: PO:0025244 name: first order infructescence axis namespace: plant_structure def: "An infructescence axis that is the primary or main axis of an infructescence." [POC:rw] synonym: "infructescence rachis" EXACT [] is_a: PO:0025242 ! infructescence axis created_by: Ramona creation_date: 2010-12-30T03:38:25Z [Term] id: PO:0025245 name: persistent sepal namespace: plant_structure def: "A phyllome that develops from a sepal and remains attached to a fruit at maturity." [POC:rw] comment: May be alive or dead at maturity. subset: Musa synonym: "flower relic" BROAD [CO_125:0000045] is_a: PO:0006001 ! phyllome relationship: develops_from PO:0009031 ! sepal created_by: Ramona creation_date: 2010-12-30T03:47:08Z [Term] id: PO:0025246 name: persistent tepal namespace: plant_structure def: "A phyllome that develops from a tepal and remains attached to a fruit at maturity." [POC:rw] comment: May be alive or dead at maturity. subset: Musa synonym: "flower relic" BROAD [CO_125:0000045] is_a: PO:0006001 ! phyllome relationship: develops_from PO:0009033 ! tepal created_by: Ramona creation_date: 2010-12-30T03:47:08Z [Term] id: PO:0025247 name: persistent stamen namespace: plant_structure def: "A phyllome that develops from a stamen and remains attached to a fruit at maturity." [POC:rw] comment: May be alive or dead at maturity. subset: Musa synonym: "flower relic" BROAD [CO_125:0000045] is_a: PO:0006001 ! phyllome relationship: develops_from PO:0009029 ! stamen created_by: Ramona creation_date: 2010-12-30T03:47:08Z [Term] id: PO:0025248 name: pseudostem namespace: plant_structure def: "A collective plant structure that forms a cylindrical false stem composed concentric leaf sheaths." [POC:rw] comment: The peduncle later grows up through the psuedostem. subset: Musa xref: CO_125:0000046 is_a: PO:0025007 ! collective plant structure created_by: Ramona creation_date: 2010-12-30T03:53:09Z [Term] id: PO:0025249 name: leaf sheath epidermis namespace: plant_structure def: "A portion of leaf epidermis that is part of a leaf sheath." [POC:rw] is_a: PO:0006016 ! leaf epidermis relationship: part_of PO:0020104 ! leaf sheath created_by: Ramona creation_date: 2010-12-30T03:58:22Z [Term] id: PO:0025250 name: leaf sheath abaxial epidermis namespace: plant_structure def: "A portion of leaf sheath epidermis that covers the abaxial/lower surface of a leaf sheath." [POC:rw] subset: Musa synonym: "pseudostem underlayers" NARROW [CO_125:0000047] is_a: PO:0025249 ! leaf sheath epidermis created_by: Ramona creation_date: 2010-12-30T04:02:50Z [Term] id: PO:0025251 name: leaf sheath adaxial epidermis namespace: plant_structure def: "A portion of leaf sheath epidermis that covers the adaxial/upper surface of a leaf sheath." [POC:rw] is_a: PO:0025249 ! leaf sheath epidermis created_by: Ramona creation_date: 2010-12-30T04:02:50Z [Term] id: PO:0025252 name: seventh order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a sixth order infructescence axis." [POC:rw] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025253 name: eighth order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a seventh order infructescence axis." [POC:rw] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025254 name: ninth order infructescence axis namespace: plant_structure def: "An infructescence branch arising from an eight order infructescence axis." [POC:rw] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025255 name: tenth or higher order infructescence axis namespace: plant_structure def: "An infructescence branch arising from a ninth or higher order infructescence axis." [POC:rw] is_a: PO:0025243 ! infructescence branch created_by: Ramona creation_date: 2011-01-05T09:16:29Z [Term] id: PO:0025256 name: lateral root elongation zone namespace: plant_structure def: "A root elongation zone that is part of a lateral root tip." [POC:rw] is_a: PO:0025181 ! root elongation zone relationship: part_of PO:0000027 ! lateral root tip created_by: Ramona creation_date: 2011-01-05T12:05:43Z [Term] id: PO:0025257 name: primary root elongation zone namespace: plant_structure def: "A root elongation zone that is part of a primary root tip." [POC:rw] is_a: PO:0025181 ! root elongation zone relationship: part_of PO:0000026 ! primary root tip created_by: Ramona creation_date: 2011-01-05T12:05:43Z [Term] id: PO:0028001 name: plant life cycle phase namespace: plant_growth_and_development_stage def: "A plant growth and development phase that begins with either meiosis or fertilization." [POC:curators] comment: The life cycle of all plants is characterized by the alternation of phases (or generations). The sporophytic phase has twice the chromosome complement of the gametophytic phase. is_obsolete: true created_by: Ramona creation_date: 2010-07-15T02:54:57Z [Term] id: PO:0028002 name: sporophytic phase namespace: plant_growth_and_development_stage def: "A plant life cycle phase that is the product of fertilization." [POC:rw] comment: During the sporophtyic phase, a plant may produce meiospores by meiosis. subset: TraitNet synonym: "sporophyte phase" EXACT [] is_a: PO:0007033 ! whole plant growth stage created_by: Ramona creation_date: 2010-07-15T02:56:11Z [Term] id: PO:0028003 name: gametophytic phase namespace: plant_growth_and_development_stage def: "A plant life cycle phase that arises through meiosis." [POC:rw] comment: During the gametophytic phase, a plant may produce gametes by mitosis. subset: TraitNet synonym: "gametophyte phase" EXACT [] is_a: PO:0007033 ! whole plant growth stage created_by: Ramona creation_date: 2010-07-15T02:56:11Z [Typedef] id: derives_from name: derives_from namespace: plant_structure created_by: Ramona creation_date: 2010-07-01T02:45:12Z [Typedef] id: develops_from name: develops_from namespace: plant_structure [Typedef] id: has_part name: has_part [Typedef] id: part_of name: part_of is_transitive: true