Dietary probiotic live yeast modulates antioxidant enzyme activities and gene expression of sea bass (Dicentrarchus labrax) larvae

Type Article
Date 2010-02
Language English
Author(s) Tovar-Ramirez D.1, Mazurais DavidORCID1, 2, Gatesoupe J. F.1, 2, Quazuguel PatrickORCID1, 2, Cahu Chantal1, 2, Zambonino-Infante J. L.1, 2
Affiliation(s) 1 : IFREMER, UMR1067, F-29280 Plouzane, France.
2 : INRA, UMR1067, F-64310 St Pee Sur Nivelle, France.
Source Aquaculture (0044-8486) (Elsevier Science Bv), 2010-02 , Vol. 300 , N. 1-4 , P. 142-147
DOI 10.1016/j.aquaculture.2009.12.015
WOS© Times Cited 84
Keyword(s) Antioxidant enzymes, Probiotics, Debaryomyces hansenii, Dicentrarchus labrax
Abstract The main goal of this work was to determine the effect of dietary live yeast Debaryomyces hansenii on the enzymatic antioxidative status of sea bass Dicentrarchus labrax larvae. Growth, activity and expression of the main antioxidative enzymes: catalase (CAT), glutathione peroxidase (GPX) and superoxide dismutase (SOD), and heat shock protein (HSP70) were measured in sea bass larvae at 23 and 48 days after hatching. Larvae were fed on two microdiets: group one, fed microdiet containing live yeast and the control group fed microdiet without yeast. Heat shock protein 70 showed the same expression levels in both fish larvae fed yeast and the control diet. The group fed D. hansenii showed highest growth and lower activity and expression levels of GPX and SOD compared to fish fed control diet. In our work the differences in activity and gene expression patterns could only be attributed to the presence of yeast, assuming a possible involvement of superoxide anion retention in fish larvae, which could represent importance to the host to increase cell or tissue responsiveness to growth- and/or differentiation-enhancing factors.
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