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ULTRASTRUCTURE OF SPERMATIAL DEVELOPMENT IN THE PARASITIC RED ALGAE LEVRINGIELLA GARDNERI AND ERYTHROCYSTIS SACCATA 1 2
Author(s) -
Kugrens Paul,
West John A.
Publication year - 1972
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.1529-8817.1972.tb04047.x
Subject(s) - biology , ultrastructure , vesicle , endoplasmic reticulum , algae , microbiology and biotechnology , biophysics , botany , membrane , biochemistry
SUMMARY Morphologically, the development of spermatia in Levringiella gardneri and Erythrocystis saccata is identical, although cytologically several differences are evident. Mature spermatia contain 1 or 2 large spermatial vesicles that contain fibrous material, several small mitochondria, some proplastids, and are surrounded by a wall, either single‐layered as in Erythrocystis or triple‐layered as in Levringiella. Spermatial vesicles are formed by aggregations of endoplasmic reticulum in Levringiella , whereas concentric membrane bodies and dictyosomes may be involved in Erythrocystis. In addition to being fibrillar, the contents of the vesicle assume a convoluted appearance in Levringiella. Several spermatia are formed per mother cell and are connected by small pit connections which rupture to allow spermatial release from the spermatangial branch.