root system exarch protoxylem

Term Information

Accession
PO:0025555
Aspect
plant anatomy
Synonyms
exact: protoxilema exarco de la raiz (Spanish)
exact: 根外原型原生木部 (Japanese)
Definition
A portion of exarch protoxylem (PO:002554) tissue in which the maturation of primary xylem (PO:0005849) of the root system (PO:0025025) progresses centripedally, with the oldest elements (protoxylem) farthest from the center of the plant axis (PO:0025004). [source: ISBN:0471245208, POC:Laurel_Cooper]
Comment
None

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