藻类对甲基汞的富集与传递研究进展  

Research progress on the bioconcentration of methylmercury in algae and its trophic transfer

作　　者：罗晓庆 刘艳伟 郭瑛瑛 刘广良[4] 阴永光 张庆华[1,2,3] 蔡勇 江桂斌[1,2,3] LUO Xiaoqing;LIU Yanwei;GUO Yingying;LIU Guangliang;YIN Yongguang;ZHANG Qinghua;CAI Yong;JIANG Guibin(School of Environment,Hangzhou Institute for Advanced Study,UCAS,Hangzhou,310024,China;State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing,100085,China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing,100049,China;Department of Chemistry and Biochemistry,Florida International University,Miami,33199,United States)

机构地区：[1]国科大杭州高等研究院环境学院,杭州310024 [2]中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室,北京100085 [3]中国科学院大学资源与环境学院,北京100049 [4]美国佛罗里达国际大学化学与生物化学系,迈阿密33199

出　　处：《环境化学》2023年第3期693-706,共14页Environmental Chemistry

基　　金：国家重点研发计划项目(2020YFA0907400);国家自然科学基金(22006154,42277208)资助.

摘　　要：甲基汞是一种高毒性的污染物,其易累积在水生生物体内,从而对水生生态系统和人体健康产生危害.作为水生生态系统的初级生产者,藻类控制着进入食物链的甲基汞浓度和总量.藻类对甲基汞的显著富集作用及水生食物链传递过程导致其在高营养级生物中显著累积.因此,厘清藻类在甲基汞的富集与食物链传递过程中的作用对于揭示甲基汞的生物累积和预测甲基汞的环境风险具有重要意义.本文概述了藻类对甲基汞的富集与食物链传递特征与机制,总结了影响富集与食物链传递的生物与环境因素,讨论了全球变暖和富营养化等环境变化对藻类富集与传递甲基汞的影响,并展望了藻类富集甲基汞研究的发展方向.Methylmercury(MeHg),a highly toxic pollutant,can be bioaccumulated by aquatic organisms and cause risks to both the aquatic ecosystem and human health.As the primary producer in the aquatic ecosystem,algae determine the level of MeHg introduced into the food web.The high bioconcentration of MeHg in algae from water and its further trophic transfer lead to its biomagnification in organisms at higher trophic level,which is of great significance to reveal bioaccumulation of MeHg and predict its risk.In this review,we outline the characteristics and mechanisms of MeHg bioconcentration in algae and further trophic transfer.The biological and environmental factors affecting bioconcentration and trophic transfer are discussed.Future research directions on MeHg bioconcentration in algae are also proposed.

关 键 词：藻类 甲基汞 生物富集 食物链传递 吸附 吸收 

分 类 号：X52[环境科学与工程—环境工程]