COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION
Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT) [IRT0941] Metal pollution levels in estuarine and coastal environments have been widely reported, but few documented reports exist of severe contamination in specific environments. Here, we report on a metal-contamin...
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ftxiamenuniv:oai:dspace.xmu.edu.cn:2288/60333 2023-05-15T15:58:48+02:00 COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION Wang, Wen-Xiong Yang, Yubo Guo, Xiaoyu He, Mei Guo, Feng Ke, Caihuan 柯才焕 2011-08 http://dspace.xmu.edu.cn/handle/2288/60333 en_US eng Environmental Toxicology and Chemistry, 2011,30(8):1767-1774 0730-7268 WOS:000293060900006 http://dspace.xmu.edu.cn/handle/2288/60333 http://dx.doi.org/10.1002/etc.571 TRACE-METAL CONCENTRATIONS MUSSEL PERNA-VIRIDIS CRASSOSTREA-GIGAS MARINE BIVALVES GREEN OYSTERS OSTREA-EDULIS HEAVY-METALS ACCUMULATION TAIWAN SEDIMENTS Article 2011 ftxiamenuniv 2020-07-21T11:32:04Z Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT) [IRT0941] Metal pollution levels in estuarine and coastal environments have been widely reported, but few documented reports exist of severe contamination in specific environments. Here, we report on a metal-contaminated estuary in Fujian Province, China, in which blue oysters (Crassostrea hongkongensis) and green oysters (Crassostrea angulata) were discovered to be contaminated with Cu and other metals. Extraordinarily high metal concentrations were found in the oysters collected from the estuary. Comparison with historical data suggests that the estuary has recently been contaminated with Cr, Cu, Ni, and Zn. Metal concentrations in blue oysters were as high as 1.4 and 2.4% of whole-body tissue dry wt for Cu and Zn, respectively. Cellular debris was the main subcellular fraction binding the metals, but metal-rich granules were important for Cr, Ni, and Pb. With increasing Cu accumulation, its partitioning into the cytosolic proteins decreased. In contrast, metallothionein-like proteins increased their importance in binding with Zn as tissue concentrations of Zn increased. In the most severely contaminated oysters, only a negligible fraction of their Cu and Zn was bound with the metal-sensitive fraction, which may explain the survival of oysters in such contaminated environments. Environ. Toxicol. Chem. 2011;30:1767-1774. (C) 2011 SETAC Article in Journal/Newspaper Crassostrea gigas Xiamen University Institutional Repository |
institution |
Open Polar |
collection |
Xiamen University Institutional Repository |
op_collection_id |
ftxiamenuniv |
language |
English |
topic |
TRACE-METAL CONCENTRATIONS MUSSEL PERNA-VIRIDIS CRASSOSTREA-GIGAS MARINE BIVALVES GREEN OYSTERS OSTREA-EDULIS HEAVY-METALS ACCUMULATION TAIWAN SEDIMENTS |
spellingShingle |
TRACE-METAL CONCENTRATIONS MUSSEL PERNA-VIRIDIS CRASSOSTREA-GIGAS MARINE BIVALVES GREEN OYSTERS OSTREA-EDULIS HEAVY-METALS ACCUMULATION TAIWAN SEDIMENTS Wang, Wen-Xiong Yang, Yubo Guo, Xiaoyu He, Mei Guo, Feng Ke, Caihuan 柯才焕 COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION |
topic_facet |
TRACE-METAL CONCENTRATIONS MUSSEL PERNA-VIRIDIS CRASSOSTREA-GIGAS MARINE BIVALVES GREEN OYSTERS OSTREA-EDULIS HEAVY-METALS ACCUMULATION TAIWAN SEDIMENTS |
description |
Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT) [IRT0941] Metal pollution levels in estuarine and coastal environments have been widely reported, but few documented reports exist of severe contamination in specific environments. Here, we report on a metal-contaminated estuary in Fujian Province, China, in which blue oysters (Crassostrea hongkongensis) and green oysters (Crassostrea angulata) were discovered to be contaminated with Cu and other metals. Extraordinarily high metal concentrations were found in the oysters collected from the estuary. Comparison with historical data suggests that the estuary has recently been contaminated with Cr, Cu, Ni, and Zn. Metal concentrations in blue oysters were as high as 1.4 and 2.4% of whole-body tissue dry wt for Cu and Zn, respectively. Cellular debris was the main subcellular fraction binding the metals, but metal-rich granules were important for Cr, Ni, and Pb. With increasing Cu accumulation, its partitioning into the cytosolic proteins decreased. In contrast, metallothionein-like proteins increased their importance in binding with Zn as tissue concentrations of Zn increased. In the most severely contaminated oysters, only a negligible fraction of their Cu and Zn was bound with the metal-sensitive fraction, which may explain the survival of oysters in such contaminated environments. Environ. Toxicol. Chem. 2011;30:1767-1774. (C) 2011 SETAC |
format |
Article in Journal/Newspaper |
author |
Wang, Wen-Xiong Yang, Yubo Guo, Xiaoyu He, Mei Guo, Feng Ke, Caihuan 柯才焕 |
author_facet |
Wang, Wen-Xiong Yang, Yubo Guo, Xiaoyu He, Mei Guo, Feng Ke, Caihuan 柯才焕 |
author_sort |
Wang, Wen-Xiong |
title |
COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION |
title_short |
COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION |
title_full |
COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION |
title_fullStr |
COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION |
title_full_unstemmed |
COPPER AND ZINC CONTAMINATION IN OYSTERS: SUBCELLULAR DISTRIBUTION AND DETOXIFICATION |
title_sort |
copper and zinc contamination in oysters: subcellular distribution and detoxification |
publishDate |
2011 |
url |
http://dspace.xmu.edu.cn/handle/2288/60333 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
http://dx.doi.org/10.1002/etc.571 |
op_relation |
Environmental Toxicology and Chemistry, 2011,30(8):1767-1774 0730-7268 WOS:000293060900006 http://dspace.xmu.edu.cn/handle/2288/60333 |
_version_ |
1766394566261342208 |