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Exploring the sublethal genotoxic effects of class II organophosphorus insecticide quinalphos on freshwater fish Cyprinus carpio

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Journal of Oceanology and Limnology 2021年第2期39卷 661-670页

作者： Devan HEMALATHA Bojan NATARAJ basuvannan rangasamy Kannan MAHARAJAN Mathan RAMESH Unit of Toxicology Department of ZoologySchool of Life SciencesBharathiar UniversityCoimbatore-641046Tamil NaduIndia Department of Zoology PSG College of Arts&ScienceCoimbatore-641014Tamil NaduIndia

The genotoxic effects of quinalphos(QP)were evaluated in the erythrocytes of Cyprinus carpio using the comet,micronucleus,and nuclear abnormality *** 96 h LC_(50) value of quinalphos,estimated by static renewal system,was 10.9µL/*** the basis of the LC_(50) value,two sublethal concentrations(1.09 and 2.18µL/L)of the compound were used together with cyclophosphamide(5 mg/L)as the positive *** fish were exposed for 35 d,and sampling was done at the end of 7,14,21,28,and 35 *** results reveal a significant dose-dependent increase in the frequencies of DNA strand breaks,micronucleus,and nuclear *** responses were also observed in fish exposed to the positive genotoxin *** collective findings demonstrated that quinalphos exerts a genotoxic effect on *** results further confirmed that the comet,micronucleus,and nuclear abnormality assays are useful tools in determining the potential genotoxicity of pesticides towards aquatic organisms.

关键词： quinalphos(QP) micronucleus nuclear abnormalities cyclophosphamide Cyprinus carpio

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Exploring the sublethal genotoxic effects of class Ⅱorganophosphorus insecticide quinalphos on freshwater fish Cyprinus carpio

引用

Journal of Oceanology and Limnology 2021年第2期39卷 661-671页

作者： Devan HEMALATHA Bojan NATARAJ basuvannan rangasamy Kannan MAHARAJAN Mathan RAMESH Unit of Toxicology Department of Zoology School of Life Sciences Bharathiar University Department of Zoology PSG College of Arts & Science

The genotoxic effects of quinalpho s(QP) were evaluated in the erythrocyte s of Cyprinus carpio using the comet,micronucleus,and nuclear abnormality *** 96 h LCvalue of quinalpho s,estimated by static renewal system,was 10.9 μL/*** the basis of the LCvalue,two sublethal concentrations(1.09 and 2.18 μL/L) of the compound were used together with cyclophosphamide(5 mg/L) as the positive *** fish were exposed for 35 d,and sampling was done at the end of 7,14,21,28,and 35 *** re sults reveal a significant dose-dependent increase in the frequencies of DNA strand breaks,micronucleus,and nuclear *** responses were also observed in fish exposed to the positive genotoxin *** collective findings demonstrated that quinalphos exerts a genotoxic effect on *** results further confirmed that the comet,micronucleus,and nuclear abnormality assays are useful tools in determining the potential genotoxicity of pesticides towards aquatic organisms.

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