| 锌铅暴露条件下菲律宾蛤仔消化腺和鳃内金属和金属硫蛋白的变化 |
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| 作者姓名： | 苏文 吴惠丰 廖春阳 薛钦昭 曲莹 |
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| 作者单位： | 1. 中国科学院烟台海岸带研究所,烟台 264003;;
2. 中国科学院海洋研究所,青岛 266071;;
3. 中国科学院研究生院,北京 100049 |
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| 基金项目： | 中国科学院知识创新重大项目(KK0710AX-026,KZCX2-YW-Q07-04)、山东省科技发展计划项目(2007GG2QT06020)和烟台市科技发展项目(2007323)联合资助 |
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| 摘 要： | 通过慢性暴露实验研究了菲律宾蛤仔在锌(Zn2+),铅(Pb2+)单一胁迫及联合胁迫下,消化腺和鳃内富集Zn2+和Pb2+及其金属硫蛋白水平随Zn2+、Pb2+暴露浓度的变化规律.结果表明, Zn2+50μg/L、Pb2+25μg/L联合胁迫时,消化腺和鳃内重金属的富集低于Zn2+、Pb2+单一胁迫,表现为拮抗作用;MT含量随着Zn2+、Pb2+暴露质量浓度变化而变化,比较发现消化腺中MT含量随Pb2+暴露质量浓度的变化最显著(p<0.01).
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| 关 键 词： | 重金属 金属硫蛋白 联合作用 拮抗作用 |
| 收稿时间： | 2009-12-14 |
| 修稿时间： | 2010-03-12 |
Metallothionein in digestive glands and gills of Ruditapes philippinarum exposed to zinc and lead |
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| Authors: | SU Wen WU Hui-Feng LIAO Chun-Yang XUE Qin-Zhao QU Ying |
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| Institution: | 1. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China;
2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
3. Graduate University, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The paper discussed accumulation of heavy metals in the digestive glands and gills of Ruditapes philippinarum with single or combined exposure of zinc and lead and relationship between MT (metallothioneinm) induction and accumulation of heavy metals. Results indicated that the antagonistic effect of znic and lead was obvious in clam jointly exposed to zinc and lead (Zn2+ 50μg/L and Pb2+ 25μg/L). MT varied with exposure concentrations of zinc and lead and the effect of lead was significant. |
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| Keywords: | heavy metals metallothioneinm joint toxicity antagonistic effect |
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