The region of the stem beneath the stalks of the seed leaves (cotyledons) and directly above the young root of the embryo plant. It grows rapidly in seedlings showing epigeal germination and lifts the cotyledons above the soil surface. In this region (the transition zone) the arrangement of vascular bundles in the root changes to that of the stem. (From Concise Dictionary of Biology, 1990)

Annotation

coordinate with specific plant

DUI

D018546 MeSH Browser

CUI

M0027808

Previous indexing

Plants (1966-1994)

History note

95

Public note

95