Evaluation of induction of metallothionein-like proteins (MTLPs) in the polychaetes for biomonitoring of heavy metal pollution in marine sediments |
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| Institution: | 1. Department of Environmental Marine Sciences, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea;2. Department of Chemistry, The National Research Lab of Marine Molecular and Environmental Biosciences, College of Natural Sciences, Hanyang University, Seoul 133-791, Republic of Korea;1. Organic Geochemistry in Basin Analysis Group, Mawson Centre for Geoscience, Department of Earth Sciences, School of Physical Sciences, University of Adelaide, SA 5005, Australia;2. CSIRO Energy, North Ryde, NSW 2113, Australia;3. CSIRO Energy, Kensington, WA 6151, Australia;1. Francis Marion University, Department of Biology, P.O. Box 100547, Florence, SC 29502, USA;2. U.S. Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, MI 48105, USA;1. College of Materials Science and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;2. Ocean College, Zhejiang University, Hangzhou 310058, China;1. Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, 15588, South Korea;2. Korea Polar Research Institute (KOPRI), 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, South Korea;3. Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, South Korea |
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| Abstract: | Polychaetes are suitable organisms for evaluation of impact of sediment pollution. We evaluated toxicity of cadmium and copper and measured metallothionein-like proteins (MTLPs) in the polychaete Perinereis nuntia. At the same concentration ranges copper was unexpectedly more toxic than cadmium. Copper also caused no significant increase in MTLPs in the polychaetes. When P. nuntia and another polychaete species, Cirratulus cirratus were cultured in the contaminated sediments collected from Lake Sihwa (Korea), a high mortality of 80% was observed on day 6 in P. nuntia in the sediment with the highest metal concentration. However, no mortality was observed up to 35 days in C. cirratus in any sediment. MTLP contents between two species also varied. These findings suggest that MTLP induction response in the polychaetes varies with the metal type and species and it may be used as a biomarker of sediment pollution in the polychaetes after further validation and field trials. |
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