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Observations on the theca of the motile phase of free-living and symbiotic isolates of Zooxanthella microadriatica (Freudenthal) comb.nov.

Published online by Cambridge University Press:  11 May 2009

Alfred R. Loeblich
Department of Biology, University of Houston, Houston, Texas 77004
James L. Sherley
Department of Biology, University of Houston, Houston, Texas 77004


A strain of Zooxanthella microadriatica (Freudenthal) comb.nov. has been isolated from decaying Chondrus crispus (L.) Stackh. The ultrastructure of this isolate has been compared to that of Z. microadriatica inhabiting Cassiopea Peron and Lesueur, 1809, sp. In an aqueous medium the cell cycle of both isolates consists of a coccoid non-motile phase alternating with a thecate motile phase.

Research Article
Copyright © Marine Biological Association of the United Kingdom 1979

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