Glossary of Plant Anatomy

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gamete [PO:0025006; plant anatomy term ]
A native plant cell (PO:0025606) that has half the chromosome complement of the sporophyte and is capable of fertilization to create a plant zygote (PO:0000423).
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gametophore [PO:0030018; plant anatomy term ]
A shoot system (PO:0009006) that consists of the shoot axes (PO:0025029) and non-vascular leaves (PO:0025075) of a plant in the gametophyte development stage (PO:0028003) .
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gametophore axillary hair [PO:0030060; plant anatomy term ]
An axillary hair that grows in a leaf axil of a non-vascular leaf.
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gametophore axillary hair basal cell [PO:0030064; plant anatomy term ]
An axillary hair basal cell that is part of a gametophore axillary hair base.
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gametophore axillary hair base [PO:0030063; plant anatomy term ]
A axillary hair base that is the basal part of a gametophore axillary hair, below the gametophore axillary hair terminal cell.
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gametophore axillary hair terminal cell [PO:0030062; plant anatomy term ]
An axillary hair terminal cell that is the long terminal cell of a gametophore axillary hair.
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gametophore axis [PO:0030020; plant anatomy term ]
A shoot axis (PO:0025029) that is part of a gametophore (PO:0030018).
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gametophore axis meristematic apical cell [PO:0030023; plant anatomy term ]
A shoot axis meristematic apical cell at the tip of a gametophore axis.
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gametophore branch [PO:0030021; plant anatomy term ]
A branch that is part of a gametophore.
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gametophore bud [PO:0030026; plant anatomy term ]
A vegetative bud that develops into a gametophore.
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gametophore bud initial cell [PO:0030083; plant anatomy term ]
A protonema sub-apical initial hat gives rise to a gametophore bud.
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gametophore meristematic apical cell [PO:0030019; plant anatomy term ]
A shoot meristematic apical cell that is part of a gametophore.
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gametophore stem [PO:0030022; plant anatomy term ]
A stem that is part of a gametophore.
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gametophyte meristematic apical cell [PO:0030014; plant anatomy term ]
An apical cell that is part of a whole plant in the gametophytic phase.
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gametophyte perianth [PO:0030031; plant anatomy term ]
A collective phyllome structure that consists of two or more of the most distal perichaetal bracts on a gametophore axis and surround a capsule.
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gelatinous fiber cell [PO:0025422; plant anatomy term ]
A xylem fiber cell (PO:0000274) in which the inner-most layer of the secondary cell wall (GO:0009531) contains abundant cellulose and is poor in lignin.
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gemma [PO:0025614; plant anatomy term ]
A portion of plant tissue (PO:0009007) which is a small ball of cells born on a thallus (PO:0030027) and is involved in asexual reproduction.
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generative cell [PO:0020097; plant anatomy term ]
A spermatogenous cell (PO:0025525) of the microgametophyte (PO:0025280) that divides to produce two pollen sperm cells (PO:0025121).
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glandular trichome [PO:0004509; plant anatomy term ]
A trichome (PO:0000282) that secretes or sequesters a portion of plant substance (PO:0025161).
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glume [PO:0009039; plant anatomy term ]
One of a pair of inflorescence bracts that is part of a spikelet and subtends the two florets.
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glume awn [PO:0025351; plant anatomy term ]
An awn that is part of a glume.
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glume of ear spikelet [PO:0006367; plant anatomy term ]
A glume that is part of an ear spikelet.
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glume of tassel spikelet [PO:0006368; plant anatomy term ]
A glume that is part of a tassel spikelet.
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ground meristem [PO:0025594; plant anatomy term ]
A portion of meristem tissue (PO:0009013) that gives rise to a portion of ground tissue (PO:0025059).
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ground tissue cell [PO:0025030; plant anatomy term ]
A native plant cell (PO:0025606) that is part of a portion of ground tissue (PO:0025059).
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growth ring [PO:0004514; plant anatomy term ]
A portion of secondary xylem (PO:0005848) that has as parts a single layer of early wood (PO:0004515) and a single layer of late wood (PO:0004516) from the same growth season and is part of a shoot axis (PO:0025029) or root (PO:0009005).
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growth ring boundary [PO:0004517; plant anatomy term ]
A portion of secondary xylem (PO:0005848) that includes the last-formed late wood (PO:0004516) of one growth ring (PO:0004514) and the earliest-formed early wood (PO:0004515) of the next growth ring.
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guard cell [PO:0000293; plant anatomy term ]
One of a pair of cells flanking the stomatal pore.
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guard mother cell [PO:0000351; plant anatomy term ]
A shoot epidermal cell that divides to produce the guard cells.
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gynoecium [PO:0009062; plant anatomy term ]
A collective phyllome structure (PO:0025023) composed all of the carpels (PO:0009030) in a flower (PO:0009046).
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gynoecium primordium [PO:0000019; plant anatomy term ]
A floral structure primordium (PO:0025477) that is committed to the development of a gynoecium (PO:0009062).
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gynoecium ridge [PO:0025088; plant anatomy term ]
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.
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gynophore [PO:0006330; plant anatomy term ]
A shoot axis that is an elongation of the floral axis that supports the carpels.
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