In situ studies on the cytochemistry and ultrastructure of a symbiotic marine dinoflagellate
Taylor, D.L. (1968) In situ studies on the cytochemistry and ultrastructure of a symbiotic marine dinoflagellate. Journal of the Marine Biological Association of the United Kingdom, 48 (2). pp. 349-366.
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The intertidal actinian Anemonia sulcata is known to harbour yellow-brown algal symbionts which are similar in appearance to the zooxanthellae of hermatypic, or reef-building, corals and a number of other invertebrate species. The cytochemistry and structural morphology of the zooxanthella has been studied by light and electron microscopy, to help define it taxonomically and to reveal something about its relations with the actinian. These investigations confirm that it is a dinoflagellate and have revealed several structural adaptations which are formed as a result of the peculiar mode of life adopted by this alga. Of significance is the fine structure of the periplast, which may have a considerable bearing upon the type of relationship which can exist between the host and its symbiont. These findings are discussed in terms of other known instances of algal-invertebrate symbiosis.
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