periderm

Term Information

Accession
PO:0005046
Aspect
plant anatomy
Synonyms
exact: peridermis (Spanish)
exact: portion of periderm tissue
exact: portion of peridermal tissue
exact: 周皮 (Japanese)
Definition
A peripheral portion of ground tissue in a plant axis that is composed of phellogen, phellem, and phelloderm. [source: ISBN:047124529, POC:curators]
Comment
After secondary growth, the periderm may replace the epidermis in stems and roots, rarely in other organs. In some cases, the epidermis is retained after periderm development. Periderm is derived from lateral meristem and may contain secondary phloem.

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External References

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