transition vascular leaf

Term Information

Accession
PO:0008018
Aspect
plant anatomy
Synonyms
exact: 維管束植物の幼葉と成熟葉の移行期の葉 (Japanese)
exact: hoja de transición (Spanish)
Definition
A vascular leaf that is part of an heteroblastic series, and is characterized by anatomical features that are intermediate between juvenile and adult leaves. [source: GR:Chih-Wei_Tung]
Comment
Many species have juvenile leaves at the base of the stem, adult leaves at the apex, and transition leaves in between. In maize, juvenile leaves are at the tip of the stalk (stem), which differentiates first, with adult leaves at the base, while other grasses may have other arrangements. Transition leaves may have mosaics of juvenile and adult tissues, as in Brachypodium.

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External References

closePO_GIT (1)

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