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Plant Ontology
Last uploaded:
January 14, 2026
| Id | http://purl.obolibrary.org/obo/PO_0025127
http://purl.obolibrary.org/obo/PO_0025127
|
|---|---|
| Preferred Name | primordium |
| Definitions |
A primordium appears as a protrusion and is the first distinct form of a plant organ (PO:0009008), cardinal organ part (PO:0025001), or collective plant organ structure (PO:0025007). The transition from a primordium to the plant structure it develops into is marked by the development of non-meristematic cells, although meristematic cells may be present after the transition.
A portion of meristem tissue (PO:0009013) that has as parts protoderm (PO:0006210) and sub-epidermal meristematic tissue and is committed to the development of a particular plant structure (PO:0009011).
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| Synonyms |
portion of primordium tissue (exact)
原基（可視的） (Japanese, exact)
primordio (Spanish, exact)
primordia (exact, plural)
portion of primordial tissue (exact)
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| Type | http://www.w3.org/2002/07/owl#Class |
All Properties
| definition | A portion of meristem tissue (PO:0009013) that has as parts protoderm (PO:0006210) and sub-epidermal meristematic tissue and is committed to the development of a particular plant structure (PO:0009011). |
|---|---|
| label | primordium
|
| comment | A primordium appears as a protrusion and is the first distinct form of a plant organ (PO:0009008), cardinal organ part (PO:0025001), or collective plant organ structure (PO:0025007). The transition from a primordium to the plant structure it develops into is marked by the development of non-meristematic cells, although meristematic cells may be present after the transition.
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| prefLabel | primordium
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| database_cross_reference | PO_GIT:186
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| notation | PO:0025127
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| creation_date | 2010-11-15T09:10:22Z
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| id | PO:0025127
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| created_by | rwalls
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| has_obo_namespace | plant_anatomy
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| subClassOf | |
| type | |
| has_exact_synonym |
portion of primordium tissue (exact)
原基（可視的） (Japanese, exact)
primordio (Spanish, exact)
primordia (exact, plural)
portion of primordial tissue (exact)
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