intermediary companion cell

Term Information

Accession
PO:0025460
Aspect
plant anatomy
Synonyms
exact: célula intermediaria acompañante (Spanish)
exact: intermediary cell
exact: 中間伴細胞 (Japanese)
Definition
A companion cell (PO:0000400) that has dense cytoplasm, a small vacuole, proplastids rather than chloroplasts, and abundant and highly branched plasmodesmata linking it to adjacent mesophyll cells. [source: PMID:21669666, PO_REF:00011]
Comment
Intermediary companion cells translocate high concentrations of raffinose-family oligosaccharides and are found in plants that use symplastic phloem loading. Unlike sieve tube elements (PO:0000289), intermediary companion cells retain their nuclei and other organelles at maturity.

Back to top

Term Lineage

Filter tree view help!
Filter Annotation Objects Counts
Term View Options

Back to top

External References

closePO_GIT (1)

Back to top