Premium
THE CYTOHISTOLOGICAL AND CYTOHISTOCHEMICAL ZONATION OF THE SHOOT APEX OF BOTRYCHIUM MULTIFIDUM
Author(s) -
Stevenson Dennis Wm.
Publication year - 1976
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1976.tb11876.x
Subject(s) - biology , meristem , apical cell , botany , apex (geometry) , shoot , cell , biochemistry
Cytohistologically, the shoot apex of Botrychium multifidum is composed of three zones—a zone of surface initials in which there is usually a centrally located apical cell, a zone of subsurface initials, and a cup‐shaped zone that is subdivided into a pheripheral zone and a rib meristem. The results of cytohistochemical tests for total protein, RNA, total carbohydrate, histones, and DNA localization support this concept. Thus, the cytohistological zonation of the apical meristem of the Ophioglossales is essentially identical to that of the Filicales, and furthermore, is comparable to that of the seed plants.