STRIP-LIKE COVERING REVEALED ON “WALL-LESS”ASTEROMONAS (CHLOROPHYCEAE)

Asteromonas Artari previously described as a wall-less biflagellated unicell exhibits a strip-like cell covering on some cells. Both tannic acid fixation and freeze-etch reveal the covering of electron opaque strips outside the plasmalemma. Cross striations are apparent in the surface strips. Golgi...

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Veröffentlicht in:Journal of phycology 1989, Vol.25 (1), p.197-199
Hauptverfasser: Chappell, Dorothy F, Hoops, Harold J, Floyd, Gary L
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container_title Journal of phycology
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creator Chappell, Dorothy F
Hoops, Harold J
Floyd, Gary L
description Asteromonas Artari previously described as a wall-less biflagellated unicell exhibits a strip-like cell covering on some cells. Both tannic acid fixation and freeze-etch reveal the covering of electron opaque strips outside the plasmalemma. Cross striations are apparent in the surface strips. Golgi vesicles contain material presumed to be precursor components of the covering strips. The crystalline pattern of the freeze-etched material is similar to that reported for other, walled volvocalean algae.
doi_str_mv 10.1111/j.0022-3646.1989.00197.x
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source Wiley Online Library All Journals
subjects Algae
Asteromonas
Biological and medical sciences
cell covering
Chlorophyceae
Dunaliella
Fundamental and applied biological sciences. Psychology
Golgi apparatus
green algae
Plant cytology, morphology, systematics, chorology and evolution
plasma membrane
tannic acid
tannins
Thallophyta
ultrastructure
title STRIP-LIKE COVERING REVEALED ON “WALL-LESS”ASTEROMONAS (CHLOROPHYCEAE)
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