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学科主题: Environmental Sciences
题名: Short-term metal accumulation and MTLP induction in the digestive glands of Perna virdis exposed to Zn and Cd
作者: Long, AM ; Li, CD ; Chen, SY ; Yan, W ; Dang, AC ; Cheng, YY ; Lu, DW
通讯作者: longam@scsio.ac.cn
关键词: Zn ; Cd ; Perna viridis ; metallothionein like protein ; insolubilization
刊名: JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
发表日期: 2010
卷: 22, 期:7, 页:975-981
收录类别: sci
部门归属: [Long, Aimin; Li, Chundi; Yan, Wen; Dang, Aicui; Cheng, Yuanyue; Lu, Dongwei] Chinese Acad Sci, S China Sea Inst Oceanol, LED Lab, Guangzhou 510301, Guangdong, Peoples R China; [Chen, Shaoyong] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Dang, Aicui; Lu, Dongwei] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
项目归属: LED
摘要: Time-dependent Zn and Cd accumulation and metallothionein like protein (MTLP) induction in the digestive glands of mussels, Perna virdis, were measured under different exposure conditions. The initial uptake rate at start of chase (rho(0)) and mean residence time (tau) were calculated to determine the physiological response of organisms and their potential detoxification mechanisms. It was found that in digestive glands, Zn had obviously higher rho(0) and shorter mean residence time than Cd, indicating that these two metals had different accumulation dynamics even though they were very close in the periodic element table. MTLP levels in digestive glands varied from 0.51 to 1.05 mu g/g ww (wet weight). The MTLP level increased continuously when mussels were exposed to low and middle levels of Zn and Cd media, and reached maximal levels at day 4, then decreased when they were exposed to high level Zn and Cd solutions. With regard to the fraction of Zn and Cd accumulated in the digestive glands, the ratios of soluble metal to total metal decreased continuously after exposure in low and middle levels of Zn and Cd media, and decreased continuously in the first 4 days and then to level off when mussels were exposed to media with high concentration of Zn and Cd. Results suggested that both MTLP induction and metal insolubilization were detoxification processes in digestive glands of mussels.
原文出处: 查看原文
WOS记录号: WOS:000280163800004
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6259
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Long, AM; Li, CD; Chen, SY; Yan, W; Dang, AC; Cheng, YY; Lu, DW.Short-term metal accumulation and MTLP induction in the digestive glands of Perna virdis exposed to Zn and Cd,JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2010,22(7):975-981
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文件名: Short-term metal accumulation and MTLP induction in the digestive glands of Perna virdis exposed to Zn and Cd .pdf
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