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Application of oxidative stress indices in natural populations of Perna viridis as biomarker of environmental pollution

DRS at CSIR-National Institute of Oceanography

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Title Application of oxidative stress indices in natural populations of Perna viridis as biomarker of environmental pollution
 
Creator Jena, K.B.
Verlecar, X.N.
Chainy, G.B.N.
 
Subject environmental pollution
marine molluscs
pollution indicators
bimarkers
biological stress
Perna viridis
 
Description Oxidative stress indices were measured in gills and digestive glands of Perna viridis collected from three coastal locations in Goa i.e., Bambolim, Marmugao Harbour and Malim. In addition to lipid peroxidation, the activities of antioxidant enzymes such as superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and glutathione S-transferase and two non-enzymatic antioxidants (ascorbic acid and reduced glutathione) were investigated in order to understand their variation with respect to pollution status of the sampling locations. A significant increase in lipid peroxidation and antioxidant enzymes of both the tissues is observed at Mormugao Harbour and Malim, suggesting that the animals at these two locations are at higher level of oxidative stress as compared to those at Bambolim. Conversely, low levels of non-enzymatic antioxidants such as ascorbic acid and reduced glutathione, observed at Mormugao Harbour and Malim indicate that the animals may use these compounds to counteract stress in the tissues. This study shows that changes in lipid peroxidation, superoxide dismutase, catalase, glutathione reductase, glutathione S-transferase and reduced glutathione in tissues of P. viridis can be used as molecular biomarkers in environmental monitoring programs.
 
Date 2009-12-22T05:04:27Z
2009-12-22T05:04:27Z
2009
 
Type Journal Article
 
Identifier Marine Pollution Bulletin, vol.58(1); 107-113
no
http://drs.nio.org/drs/handle/2264/3509
 
Language en
 
Rights An edited version of this paper was published by Elsevier. Copyright [2009] Elsevier
 
Publisher Elsevier