Chen, Lizhu; Wu, Huifeng
; Zhao, Jianmin; Zhang, Wei; Zhang, Li; Sun, Shan; Yang, Dinglong; Cheng, Bo; Wang, Qing发表期刊AQUATIC TOXICOLOGY
ISSN0166-445X
2018-11
卷号204页码:9-18
关键词ArsenicBioaccumulationMetabolismSubcellular distributionGlutathione S-transferase omega
研究领域Marine & Freshwater Biology; Toxicology
DOI10.1016/j.aquatox.2018.08.016
产权排序[Chen, Lizhu; Wu, Huifeng; Zhao, Jianmin; Yang, Dinglong; Wang, Qing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China; [Wu, Huifeng] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Peoples R China; [Chen, Lizhu; Sun, Shan] Shandong Marine Resource & Environm Res Inst, Yantai 264006, Peoples R China; [Zhang, Wei; Zhang, Li] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China; [Cheng, Bo] Chinese Acad Fishery Sci, Aquat Prod Qual & Stand Res Ctr, Beijing 100141, Peoples R China
作者部门海岸带环境过程实验室
英文摘要The major hazard of arsenic in living organisms is increasingly being recognized. Marine mollusks are apt to accumulate high levels of arsenic, but knowledge related to arsenic detoxification in marine mollusks is still less than sufficient. In this study, arsenic bioaccumulation as well as the role of glutathione S-transferase omega (GST Omega) in the process of detoxification were investigated in the Ruditapes philippinarum clam after waterborne exposure to As(III) or As(V) for 30 days. The results showed that the gills accumulated significantly higher arsenic levels than the digestive glands. Arsenobetaine (MB) and dimethylarsenate (DMA) accounted for most of the arsenic found, and monomethylarsonate (MMA) can be quickly metabolized. A subcellular distribution analysis showed that most arsenic was in biologically detoxified metal fractions (including metal-rich granules and metallothionein-like proteins), indicating their important roles in protecting cells from arsenic toxicity. The relative mRNA expressions of two genes encoding GST Omega were up-regulated after arsenic exposure, and the transcriptional responses were more sensitive to As(III) than As(V). The recombinant GST Omega s exhibited high activities at optimal conditions, especially at 37 degrees C and pH 4-5, with an As(V) concentration of 60 mM. Furthermore, the genes encoding GST Omega significantly enhance the arsenite tolerance but not the arsenate tolerance of E. call AW3110 (DE3) (Delta arsRBC). It can be deduced from these results that GST Omega s play an important role in arsenic detoxification in R. philippinarum.
文章类型Article
资助机构National Natural Science Foundation of China [41206105, 41576122, 41676114, 31502191]; Qingdao National Laboratory for Marine Science and Technology [QNLM201701]; Youth Innovation Promotion Association of CAS [2016196]; Youth Foundation of Shandong Natural Science Foundation [ZR2014DQ018]
收录类别SCI
语种英语
关键词[WOS]GLUTATHIONE-S-TRANSFERASE; FISH TERAPON-JARBUA; SUBCELLULAR-DISTRIBUTION; MMA(V) REDUCTASE; METAL SEQUESTRATION; MAMMALIAN SYSTEMS; MARINE ORGANISMS; TRACE-ELEMENTS; BOHAI SEA; BIOTRANSFORMATION
研究领域[WOS]Marine & Freshwater Biology; Toxicology
WOS记录号WOS:000449240800002
引用统计被引频次：7[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24563
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
中科院海岸带环境过程与生态修复重点实验室
海岸带生物学与生物资源利用重点实验室_海岸带生物资源高效利用研究与发展中心
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China;
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Peoples R China;
3.Shandong Marine Resource & Environm Res Inst, Yantai 264006, Peoples R China;
4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China;
5.Chinese Acad Fishery Sci, Aquat Prod Qual & Stand Res Ctr, Beijing 100141, Peoples R China
推荐引用方式
GB/T 7714Chen, Lizhu,Wu, Huifeng,Zhao, Jianmin,et al. The role of GST omega in metabolism and detoxification of arsenic in clam Ruditapes philippinarum[J]. AQUATIC TOXICOLOGY,2018,204:9-18.
APAChen, Lizhu.,Wu, Huifeng.,Zhao, Jianmin.,Zhang, Wei.,Zhang, Li.,...&Wang, Qing.(2018).The role of GST omega in metabolism and detoxification of arsenic in clam Ruditapes philippinarum.AQUATIC TOXICOLOGY,204,9-18.
MLAChen, Lizhu,et al."The role of GST omega in metabolism and detoxification of arsenic in clam Ruditapes philippinarum".AQUATIC TOXICOLOGY 204(2018):9-18.
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