- histogen theory
- noun
: a theory in botany: a growing point (as of a stem or root) consists of three histogens each of which gives rise to a different tissue — see dermatogen, periblem, plerome
Useful english dictionary. 2012.
histogen theory
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histogen — təjə̇n, ˌjen noun ( s) Etymology: International Scientific Vocabulary hist + gen : a zone or clearly delimited region of primary tissue in or from which the specific parts of a plant organ are believed to be produced see dermatogen, periblem,… … Useful english dictionary
plant development — Introduction a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… … Universalium
dermatogen — (ˌ)dərˈmad.əjə̇n, ˌjen, ˈdərməd.ə noun ( s) Etymology: International Scientific Vocabulary dermat + gen 1. : the outer primary meristem of a plant or plant part that according to the histogen theory gives rise to epidermis 2. : the outer apical… … Useful english dictionary
periblem — ˈperəˌblem noun ( s) Etymology: German, from Greek periblēma garment, fortification, from periballein to throw around, encompass, put on, from peri + ballein to throw more at devil according to the histogen theory : a primary meristem that gives… … Useful english dictionary
