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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).

AttributesValues
type
label
  • nucellus
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).
subClassOf
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).
has_alternative_id
  • PO:0006462
  • PO:0006492
database_cross_reference
  • PO_GIT:149
  • PO_GIT:253
  • PO_GIT:49
has_exact_synonym
  • nucelo (Spanish, exact)
  • 珠心 (Japanese, exact)
has_narrow_synonym
  • Poaceae nucellus (narrow)
  • Zea nucellus (narrow)
  • nucelli (narrow)
has_obo_namespace
  • plant_anatomy
has_related_synonym
  • megasporangium (related)
id
  • PO:0020020
in_subset
http://terminologi...s/ontology#change
  • removed
is first of
is subClassOf of
is someValuesFrom of
is http://terminologi...ogy#modified_term of
is term replaced by of
is annotatedSource of
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