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. 1983 Apr;71(4):712–715. doi: 10.1104/pp.71.4.712

Inhibition of Coral and Algal Photosynthesis by Ca2+-Antagonist Phenothiazine Drugs 1

John E Burris 1,2, Clanton C Black Jr 1,2
PMCID: PMC1066109  PMID: 16662894

Abstract

The effects of various calcium ion antagonists and ion transport inhibitors on photosynthetic O2 evolution of corals, isolated zooxanthellae, sea anemone tentacles, and Chlorococcum oleofaciens were measured. Only the phenothiazine drugs were effective at inhibiting photosynthesis. Trifluoperazine, a calcium ion antagonist drug, inhibited at low concentrations, with 10−4 molar and 8 × 10−6 molar completely abolishing photosynthesis in the intact corals and isolated zooxanthellae, respectively. Net photosynthetic O2 evolution of C. oleofaciens was eliminated by concentrations of trifluoperazine as low as 2.8 × 10−5 molar.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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