FN Archimer Export Format PT J TI Expression of candidate genes related to metabolism, immunity and cellular stress during massive mortality in the American oyster Crassostrea virginica larvae in relation to biochemical and physiological parameters BT AF GENARD, Bertrand MORAGA, Dario PERNET, Fabrice DAVID, Elise BOUDRY, Pierre TREMBLAY, Rejean AS 1:1;2:2;3:3;4:2,4;5:5;6:1; FF 1:;2:;3:PDG-ODE-LER-LERLR;4:PDG-DGD-DCT-SAFTOULON;5:PDG-RBE-PFOM-PI;6:; C1 Univ Quebec, Inst Sci Mer, Rimouski, PQ G5L 3A1, Canada. Univ Bretagne Occidentale, Inst Univ Europeen Mer, Lab Sci Environm Marin LEMAR, Plouzane, France. IFREMER, Lab Environm Ressources Languedoc Roussillon, Sete, France. Univ Reims, Unite Rech Vigne & Vins Champagne Stress & Enviro, UPRES EA2069, Lab Ecol Ecotoxicol, F-51687 Reims 02, France. IFREMER, Lab Physiol Invertebres, F-29280 Plouzane, France. C2 UNIV QUEBEC, CANADA UBO, FRANCE IFREMER, FRANCE UNIV REIMS, FRANCE IFREMER, FRANCE SI BREST SETE TOULON SE IUEM PDG-ODE-LER-LERLR PDG-DGD-DCT-SAFTOULON PDG-RBE-PFOM-PI IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france copubli-int-hors-europe IF 2.2 TC 15 UR https://archimer.ifremer.fr/doc/00075/18585/16138.pdf LA English DT Article DE ;Massive mortality;Relative gene expression;Metabolism;Immunity;Cellular stress;Larvae AB Quantification of mRNA of genes related to metabolism, immunity and cellular stress was examined in relation to a massive mortality event during the culture of American oyster larvae, Crassostrea virginica which was probably, in regard to previous microbiological analysis, induced by vibrio infection. To document molecular changes associated with the mortality event, mRNA levels were compared to biochemical and physiological data, previously described in a companion paper. Among the 18 genes studied, comparatively to the antibiotic control, 10 showed a lower relative gene expression when the massive mortality occurred. Six of them are presumed to be related to metabolism, corroborating the metabolic depression associated with the mortality event suggested by biochemical and physiological analyses. Relationships between the regulation of antioxidant enzyme activities, lipid peroxidation, and the mRNA abundance of genes linked to oxidative stress, cytoprotection, and immune response are also discussed. Finally, we observed an increase in the transcript abundance of two genes involved in apoptosis and cell regulation simultaneously with mortality, suggesting that these processes might be linked. PY 2012 PD MAY SO Gene SN 0378-1119 PU Elsevier Science Bv VL 499 IS 1 UT 000303621400010 BP 70 EP 75 DI 10.1016/j.gene.2012.02.021 ID 18585 ER EF