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

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 supero...

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Bibliographic Details
Published in:Aquaculture 2010-02, Vol.300 (1), p.142-147
Main Authors: Tovar-Ramírez, D., Mazurais, D., Gatesoupe, J.F., Quazuguel, P., Cahu, C.L., Zambonino-Infante, J.L.
Format: Article
Language:English
Subjects:
Agricultural sciences
Animal and plant ecology
Animal aquaculture
Animal productions
Animal, plant and microbial ecology
Antioxidant enzymes
antioxidants
Aquaculture
Bass
Biological and medical sciences
catalase
Debaryomyces hansenii
Dicentrarchus labrax
Diet
enzyme activity
Enzyme kinetics
feed supplements
fish culture
fish feeding
fish larvae
Fundamental and applied biological sciences. Psychology
Gene expression
General aspects
glutathione peroxidase
heat shock proteins
Life Sciences
mariculture
Marine
marine fish
Probiotics
Sciences and technics of fishery
Sea water ecosystems
superoxide dismutase
Synecology
Yeast
yeasts
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Summary: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.
ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2009.12.015