Tissue-Specific Response of Peroxidase Activity in Channa striata under Acute Exposure of Pesticides (Deltamethrin + Endosulfan) Mixture
Tissue-Specific Response of Peroxidase Activity in Channa striata under Acute Exposure of Pesticides (Deltamethrin + Endosulfan) Mixture
Aliya Munir1, Sajid Abdullah1*, Huma Naz2*, Khalid Abbas1, Tanveer Ahmed3 and Zahid Farooq2
ABSTRACT
The application of pesticides has been increased in agriculture to improve crop production all over the world. This may leads to existence of pesticides and their metabolites in freshwater bodies. Pesticides can trigger stress in organisms by increasing the number of reactive oxygen species. Oxidative stress biomarkers like antioxidants enzymes have been successfully used in ecotoxicology field for evaluating the stress response of organisms exposed to pollutants. Therefore, this work was designed to evaluate the peroxidase (POx) level in kiney, gills and liver of fish Channa striata exposed to LC50 concentration (1.374µgL-1) of deltamethrin+endosulfan (DM+ES) mixture for 4-day. Sampling was performed after a 24-hr period. Fish were sacrificed and organs were collected to calculate the POx activity. It was observed that the exposure of DM+ES significantly accelerated the POx level in gills, liver and kidney of fish in a time dependent manner.
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