Planteome: Term Details for "nucellus" (PO:0020020)

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Term Information

Accession: PO:0020020
Name: nucellus
Ontology: plant_anatomy
Synonyms: nucelo (Spanish, exact), 珠心 (Japanese, exact), megasporangium (related), Poaceae nucellus (narrow), Zea nucellus (narrow), nucelli (narrow)
Alternate IDs: PO:0006462, PO:0006492
Definition: A megasporangium (PO:0025201) in a seed plant, composed of fleshy subepidermal tissue that is part of a plant ovule (PO:0020003) and surrounds a megasporocyte (PO:0000431). Source: POC:curators
Comment: In seed plants, the megaspores and megagametophyte are retained within the nucellus. If you are annotating to this structure for an angiosperm, please add an additional annotation to plant ovary ovule (PO:0025490). If you are annotating to this structure for an gymnosperm, please add an additional annotation to ovuliferous scale ovule (PO:0025491). If you are annotating to this structure for Zea mays or other grasses, please also add an annotation to the corresponding floret type. Choose the most specific term possible from: spikelet floret (PO:0009082), ear floret (PO:0006354), upper floret of pedicellate spikelet of ear (PO:0006350), upper floret of sessile spikelet of ear (PO:0006352).
Subset: reference; TraitNet
Related: Link to all annotated objects annotated to nucellus.; Link to all direct and indirect annotations to nucellus.; Link to all direct and indirect annotations download (limited to first 10,000) for nucellus.
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Comments, changes to terms, or requests for new ontology terms can be made at PO issue tracker on GitHub.

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BFO:0000002 continuant
BFO:0000001 entity
BFO:0000004 independent continuant
BFO:0000040 material entity
PO:0025131 plant anatomical entity
PO:0009011 plant structure
PO:0025496 multi-tissue plant structure
PO:0009008 plant organ
PO:0025094 sporangium
PO:0025201 megasporangium
PO:0020003 plant ovule
PO:0020020 nucellus
PO:0008005 fruit nucellus
PO:0008006 nucellar epidermis
PO:0008007 nucellar projection

Parents of nucellus (PO:0020020)

subject	relation	object
nucellus	is_a	megasporangium (PO:0025201)
nucellus	BFO:0000050	plant ovule (PO:0020003)

Children of nucellus (PO:0020020)

subject	relation	object
nucellar epidermis (PO:0008006)	BFO:0000050	nucellus
nucellar projection (PO:0008007)	BFO:0000050	nucellus
fruit nucellus (PO:0008005)	is_a	nucellus

FNA: 6ba590f7-80b0-4cf1-a378-a8e1286b7d18
PO_GIT: 49; 149; 253