RESPONSES OF ANTIOXIDANT STATUS IN THE GILLS OF BROWN TROUT (SALMO TRUTTA M. TRUTTA L.) WITH ULCERATIVE DERMAL NECROSIS
Journal Title: Baltic Coastal Zone - Year 2011, Vol 15, Issue 15
Abstract
Antioxidant defence system (activities of superoxide dismutase, catalase, glutathione reductase, and glutathione peroxidase), and free radical modification of lipids were determined in the gills from male and female brown trout (Salmo trutta m. trutta L.) affected by ulcerative dermal necrosis (UDN). In both males and females, lipid oxidation in the gills from UDN-affected trout showed higher values as compared to the respective control. UDN induced an increase of thiobarbituric acid reactive substances (TBARS) levels both in the gills of males and females. UDN caused a decrease in gill antioxidant enzyme activities. This might be due to inactivation of the abovementioned enzymes by the end products of lipid peroxidation. The importance of the glutathionemediated antioxidant defence system in protection against UDN-induced oxidative stress was demonstrated.
Authors and Affiliations
Halyna Tkachenko, Natalia Kurhalyuk, Katarzyna Pałczyńska
Keywords
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