Premium
AN ELECTRON MICROSCOPIC STUDY OF THE SPOROPHYTIC AND GAMETOPHYTIC PLANTS OF PADINA VICKERSIAE HOYT 1
Author(s) -
Fagerberg Wayne R.,
Dawes Clinton J.
Publication year - 1973
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1973.tb04079.x
Subject(s) - biology , chloroplast , ultrastructure , botany , nucleolus , meristem , nucleus , microbiology and biotechnology , genetics , gene , shoot
SUMMARY An electron microscopic comparison was made of the “isomorphic” sporophytic and gametophytic plants of Padina vickersiae. Light microscopic studies of the 2 generations showed few differences. This observation was also supported by studies at the ultrastructural level. However, minor differences in the gametophytic plant have been noted: (1) a well‐defined nucleolus in the nucleus of the non‐meristematic cell; (2) a general lack of osmiophilic globules in the chloroplasts; and (3) a clumping of chloroplasts in the maturing oogonium. The first and second differences are considered in terms of growth activity.