metaxylem

Term Information

Accession
PO:0000372
Aspect
plant anatomy
Synonyms
exact: metaxilema (Spanish)
exact: portion of metaxylem tissue
exact: 後生木部 (Japanese)
Definition
A portion of primary xylem (PO:0005849) tissue that has as part one or more metaxylem tracheary elements (PO:0025576) embedded in parenchyma (PO:0005421) tissue and may contain xylem fiber cells (PO:0000274). [source: ISBN:047125208, ISBN:0471738433, POC:curators]
Comment
Metaxylem has larger tracheary elements (PO:0000290) than the protoxylem (PO:0000272), and develops after the formation of the protoxylem, once elongation of the plant axis (PO:0025004) has completed.

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External References

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