摘要
由蓝藻水华引起的微囊藻毒素(microcystins,MCs)严重威胁水生态系统,是全球关注的环境热点问题之一。以往多数学者聚焦于MCs对动植物的毒害,缺少其与微生物群落之间相互响应关系的综述。因此,该文旨在探讨MCs对水环境中微生物生态及功能的影响,总结了MCs的化学结构和毒性特点,阐释了MCs在典型水域的分布特征,并重点讨论了MCs对微生物群落的影响。同时,也探讨了功能微生物对MCs的降解机理。MCs对微生物群落具有毒性作用,能够影响原水生态系统的氮磷循环,改变微生物群落的代谢能力和生态系统功能,进而对整个微生物生态系统平衡及稳定造成负面影响。该文进一步对水生态系统中MCs污染及对微生物群落的响应机制进行了总结和展望,可为MCs的水污染控制提供有益参考。
Microcystins(MCs)caused by cyanobacterial blooms are a serious threat to aquatic ecosystems and are one of the environmental hotspots of global concern.In the past,focuses were on the toxicity of MCs to plants and animals,and there is a lack of reviews on the interactions between MCs and microbial communities.Therefore,this review aims to explore the effects of MCs on microbial ecology and function in aquatic environments,summarises the chemical structure and toxicity characteristics of MCs,elucidates the distribution characteristics of MCs in typical waters,and focuses on the effects of MCs on microbial communities.The degradation mechanism of MCs by functional microorganisms was also discussed.MCs have toxic effects on microbial communities,affecting the nitrogen and phosphorus cycles in raw water ecosystems,altering the metabolic capacity of microbial communities and ecosystem functions,and then negatively affecting the balance and stability of the whole microbial ecosystem.This article further summarizes and projects the response mecha⁃nisms of microbial communities to MCs pollution in aquatic ecosystems,providing valuable insights for the control of water pollution caused by MCs.
作者
茅钱博
方昊
丁程成
张帅
胡定骏
崔益斌
MAO Qianbo;FANG Hao;DING Chengcheng;ZHANG Shuai;HU Dingjun;CUI Yibin(School of Environmental Science and Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;Nanjing Institute of Environmental Sciences,Ministry of Ecology and Environment,Nanjing 210042,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2024年第10期97-108,共12页
Environmental Science & Technology
基金
国家重点研发计划(2022YFC3204004)
生态环境部南京环境科学研究所创新团队项目(ZX2023QT017)。
关键词
微囊藻毒素
微生物群落
微囊藻毒素降解菌
microcystin
microbial community
microcystic toxin-degrading bacteria
