Term Information

Accession
PO:0005849
Name
primary xylem
Ontology
plant_anatomy
Synonyms
portion of primary xylem tissue (exact), xilema primario (Spanish, exact), 一次木部 (Japanese, exact)
Alternate IDs
None
Definition
A portion of xylem (PO:0005352) tissue that develops from the procambium (PO:0025275). Source: ISBN:0471245194, ISBN:0122151704
Comment
Primary xylem develops as part of primary growth (request for primary growth has been made to GO) and is not differentiated into axial (PO:0025410) and ray (PO:0025411) systems. Tracheary elements (PO:0000290) have lignified cell walls with secondary thickening and are dead at maturity.
Subset
TraitNet
Feedback
Comments, changes to terms, or requests for new ontology terms can be made at PO issue tracker on GitHub.

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Parents of primary xylem (PO:0005849)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
primary xylem [RO:0002202 relation] RO:0002202  procambium (PO:0025275)
primary xylem [is_a relation] is_a  xylem (PO:0005352)
Children of primary xylem (PO:0005849)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
metaxylem (PO:0000372) [is_a relation] is_a  primary xylem
primary xylem tracheid (PO:0025446) [BFO:0000050 relation] BFO:0000050  primary xylem
primary xylem tracheary element (PO:0025444) [BFO:0000050 relation] BFO:0000050  primary xylem
primary xylem vessel member (PO:0025448) [BFO:0000050 relation] BFO:0000050  primary xylem
protoxylem (PO:0000272) [is_a relation] is_a  primary xylem
primary xylem vessel (PO:0025450) [BFO:0000050 relation] BFO:0000050  primary xylem
PO_GIT
434