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生态学杂志 ›› 2011, Vol. 30 ›› Issue (05): 874-882.

• 汞的生物地球化学专辑 • 上一篇    下一篇

汞的微生物甲基化研究进展

胡海燕1,2,3,冯新斌1**,曾永平2,仇广乐1   

  1. 1中国科学院地球化学研究所环境地球化学国家重点实验室, 贵阳 550002;2中国科学院广州地球化学研究所有机地球化学国家重点实验室, 广州 510640;3中国科学院研究生院, 北京 100049
  • 出版日期:2011-05-08 发布日期:2011-05-08

Progress in research on microbial methylation of mercury.

HU Hai-yan1,2,3, FENG Xin-bin1**, ZENG Yong-ping2, QIU Guang-le1   

  1. 1State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China|2State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China|3Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2011-05-08 Published:2011-05-08

摘要: 汞的微生物甲基化作用是汞生物地球化学循环过程中重要环节之一,与人类健康密切相关。近年来,该领域的研究受到越来越多的关注。本文综述了汞的微生物甲基化研究的历史与发展现状、汞微生物甲基化的影响因素、甲基化的机制和目前的主要研究方法等。确定特定生态系统中的汞甲基化微生物种类,明确甲基化机制及影响因素,以及探讨汞微生物甲基化过程中导致的汞同位素分馏等,将成为本领域的研究热点及重点。

关键词: 根瘤菌, 混作, 小麦, 紫云英, 生物量, 氮素

Abstract: Mercury methylation by microbes plays a key role in mercury biogeochemical cycle, and closely related with public health. It has received increasing attention. The paper reviewed the research history and development state, the factors affecting mercury methylation rates, the methylation mechanism and the main study methods used in this research field. It is pointed out that determining the specific microbes in specific ecosystem, making out the mechanism of microbial methylation, demethylation and species-specific stable isotope fractionation of mercury during microbial methylation will become the hot and focal topics of researches.

Key words: Rhizobium, Mixed cropping, Wheat, Astragalus, Biomass, Nitrogen