metaphloem

Term Information

Accession
PO:0006076
Aspect
plant anatomy
Synonyms
exact: metafloema (Spanish)
exact: portion of metaphloem tissue
exact: 後生師部 (Japanese)
Definition
A portion of primary phloem (PO:0006075) tissue that has as parts companion cells (PO:0000071, in angiosperms) or albuminous cells (PO:0025412, in gymnosperms) associated with the sieve elements (PO:0025406) and that develops after the protophloem (PO:0006077). [source: ISBN:0471245194, POC:curators]
Comment
Metaphloem develops after a portion of vascular tissue (PO:0009015) has stopped elongating, in the same location as the protophloem, replacing the protophloem. Sieve elements in the metaphloem are larger than in the protophloem. Develops before the secondary phloem, if any is formed.

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External References

closeOBO_SF3_PO (1)
  • 433

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