Evaluation of DNA Damage in the Marine Mussel Crenomytilus grayanus as a Genotoxic Biomarker of Pollution

SLOBODSKOVA Valentina V.; ZHURAVEL Elena V.; KUKLA Sergey P.; CHELOMIN Victor P.

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Evaluation of DNA Damage in the Marine Mussel Crenomytilus grayanus as a Genotoxic Biomarker of Pollution

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Marine pollution affects all life processes in aquatic organisms. The genotoxic effect of pollution on the mussel Crenomytilus grayanus was assessed. Bivalves were collected from the ‘clean'(Vostochnaya Cove) and polluted(Nakhodka Bay) areas in the Peter the Great Bay. The degree of DNA damage in C. grayanus was determined by alkaline comet assay as mean percentage of DNA in tail, and the genetic damage index was calculated. Our results indicate that almost one-third of DNA in cells of gills and digestive gland of C. grayanus inhabiting the Nakhodka Bay had destructive changes compared to the individuals of this species from the Vostochnaya Cove. This study has shown that chronic pollution of the aquatic environment causes destructive changes to DNA in gill and digestive gland cells of C. grayanus.

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《中国海洋大学学报：英文版》 |2019年第1期|159-164|共6页
作者
SLOBODSKOVA Valentina V.; ZHURAVEL Elena V.; KUKLA Sergey P.; CHELOMIN Victor P.;
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作者单位

Laboratory of Marine Ecotoxicology;

V.I.Ilichev Pacific Oceanological Institute;

Far Eastern Branch;

Russian Academy of Sciences;

School of Natural Sciences;

Far Eastern Federal University;

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原文格式 PDF
正文语种 chi
中图分类天文学、地球科学;
关键词
genotoxicity; DNA; comet; assay; Crenomytilus; grayanus; pollution;

Evaluation of DNA Damage in the Marine Mussel Crenomytilus grayanus as a Genotoxic Biomarker of Pollution

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