Term Information

Accession
PO:0000272
Name
protoxylem
Ontology
plant_anatomy
Synonyms
portion of protoxylem tissue (exact), protoxilema (Spanish, exact), 原生木(質)部 (Japanese, exact)
Alternate IDs
None
Definition
A portion of primary xylem (PO:0000272) tissue that has as part one or more protoxylem tracheary elements (PO:0025575) embedded in parenchyma (PO:0005421) tissue. Source: ISBN:0471738433, POC:Laurel_Cooper, ISBN:047125208
Comment
Develops while the vascular tissue (PO:0009015) is still elongating. When protoxylem tracheary elements (PO:0025575) are destroyed they may become obliterated by surrounding parenchyma cells (PO:0000074). Protoxylem has smaller elements than the metaxylem (PO:0000372).
Subset
None
Feedback
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Parents of protoxylem (PO:0000272)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
protoxylem [is_a relation] is_a  primary xylem (PO:0005849)
Children of protoxylem (PO:0000272)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
mesarch protoxylem (PO:0025553) [is_a relation] is_a  protoxylem
protoxylem tracheary element (PO:0025575) [BFO:0000050 relation] BFO:0000050  protoxylem
endarch protoxylem (PO:0025557) [is_a relation] is_a  protoxylem
exarch protoxylem (PO:0025554) [is_a relation] is_a  protoxylem
centarch protoxylem (PO:0025552) [is_a relation] is_a  protoxylem
PO_GIT
434