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Physiological changes in Pacific oyster Crassostrea gigas exposed to the herpesvirus OsHV-1 μvar ArchiMer
Tamayo, David; Corporeau, Charlotte; Petton, Bruno; Quere, Claudie; Pernet, Fabrice.
Since 2008, mass mortality events of Crassostrea gigas have been occurring along the French coast when seawater temperature exceeds 16ºC. These mortality events are related to a particular genotype of the ostreid herpesvirus named OsHV-1 μvar. The present study aimed to detail various physiological aspects underlying the onset of the disease. In the laboratory, both exposed (infected) and naïve (healthy) oysters were maintained at 13.0°C and 20.6ºC. These temperatures were respectively lower and higher than the threshold values of 16°C at which the disease generally occur. At 20.6ºC, exposed oysters were characterized by a reduction in energetic reserves (carbohydrates and triglycerides) together with a decrease in protein content. Sterols levels were...
Tipo: Text Palavras-chave: Crassostrea gigas; Energetic reserves; Energetic metabolism; Enzyme activity; OsHV-1; Temperature.
Ano: 2014 URL:
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