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Science 28 April 1967:
Vol. 156. no. 3774, pp. 516 - 519
DOI: 10.1126/science.156.3774.516
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Articles

Glycerol Excretion by Symbiotic Algae from Corals and Tridacna and Its Control by the Host

Leonard Muscatine 1

1 Department of Zoology, University of California, Los Angeles 90024

Zooxanthellae isolated from reef corals and Tridacna crocea incorporate labeled carbon dioxide photosynthetically. In the presence of some component of the host tissue, up to 40 percent of the labeled algal photosynthate is liberated primarily as glycerol. Excretion of glycerol by the algae in situ and its control and utilization by the host may represent a mechanism by which zooxanthellae contribute to produtctivity of coral reefs.


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