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Calcification and associated physiological parameters during a stress event in the scleractinian coral Stylophora pistillata

Moya, Aurélie, Ferrier-Pagès, Christine, Furla, Paola, Richier, Sophie, Tambutté, Eric, Allemand, Denis and Tambutté, Sylvie (2008) Calcification and associated physiological parameters during a stress event in the scleractinian coral Stylophora pistillata Comparative Biochemistry and Physiology. Part A: Molecular & Integrative Physiology, 151, (1), pp. 29-36. (doi:10.1016/j.cbpa.2008.05.009). (PMID:18606553).

Record type: Article


High calcification rates observed in reef coral organisms are due to the symbiotic relationship established between scleractinian corals and their photosynthetic dinoflagellates, commonly called zooxanthellae. Zooxanthellae are known to enhance calcification in the light, a process referred as "light-enhanced calcification". The disruption of the relationship between corals and their zooxanthellae leads to bleaching. Bleaching is one of the major causes of the present decline of coral reefs related to climate change and anthropogenic activities. In our aquaria, corals experienced a chemical pollution leading to bleaching and ending with the death of corals. During the time course of this bleaching event, we measured multiple parameters and could evidence four major consecutive steps: 1) at month 1 (January 2005), the stress affected primarily the photosystem II machinery of zooxanthellae resulting in an immediate decrease of photosystem II efficiency, 2) at month 2, the stress affected the photosynthetic production of O2 by zooxanthellae and the rate of light calcification, 3) at month 3, there was a decrease in both light and dark calcification rates, the appearance of the first oxidative damage in the zooxanthellae, the disruption of symbiosis, 4) and finally the death of corals at month 6.

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Published date: September 2008
Organisations: Environmental


Local EPrints ID: 341903
ISSN: 1095-6433
PURE UUID: 7096e1cc-d11d-406d-ba6c-774c9c8f733a

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Date deposited: 08 Aug 2012 10:56
Last modified: 18 Jul 2017 05:31

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Author: Aurélie Moya
Author: Christine Ferrier-Pagès
Author: Paola Furla
Author: Sophie Richier
Author: Eric Tambutté
Author: Denis Allemand
Author: Sylvie Tambutté

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