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Effects of chlorpyrifos insecticide, on cholinesterase activity and its depuration in the crab Barytelphusa guerini

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  • Madhusudan Reddy Narra

Abstract

Organophosphorus pesticides inhibit esterases such as acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes, which are widely used as biomarkers for evaluating the exposure of non-target organisms to these pollutants. In this context, we examine the tissue-specific response of AChE and BChE in fresh water field crab Barytelphusa guerini, exposed to chlorpyrifos. These esterases were measured with exposure and depuration in gills, hepatopancreas and muscle, following two sub-lethal concentrations. The esterases recovered 95% of their activity in 30 days after the transference to pesticide-free water. The present study suggests that Barytelphusa guerini may be employed as a biological indicator for assessing pesticide contamination. The results indicate that the use of pesticides in agriculture and aquaculture must be careful.

Suggested Citation

  • Madhusudan Reddy Narra, 2015. "Effects of chlorpyrifos insecticide, on cholinesterase activity and its depuration in the crab Barytelphusa guerini," International Journal of Environmental Technology and Management, Inderscience Enterprises Ltd, vol. 18(1), pages 1-8.
    • Handle: RePEc:ids:ijetma:v:18:y:2015:i:1:p:1-8
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