coleoptile

Term Information

Accession
PO:0020033
Aspect
plant anatomy
Synonyms
exact: coleóptile (Spanish)
exact: 子葉鞘、鞘葉 (Japanese)
Definition
A sheath-like plant organ (PO:0009008) that surrounds the plumule (PO:0020032) of a plant embryo (PO:0009009) or the emerging shoot apex (PO:0000037) of a seedling. [source: ISBN:0471244554, ISBN:9781842464229]
Comment
The coleoptile is an outgrowth or part of the scutellum (PO:0020110) (which is a modified, haustorial cotyledon (PO:0020030)). Develops separate from the shoot apical meristem (PO:0020148). Found in Poaceae and other monocotyledons such as Zingiberaceae. Protects the emerging shoot system (PO:0009006) as it grows through the soil.

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External References

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