耐受高浓度铯离子细菌的研究进展  

Research progress on bacteria tolerant to high concentrations of cesium ions

作　　者：张飞 郭亚平 陈珊 孙元敏 汤坤贤 ZHANG Fei;GUO Yaping;CHEN Shan;SUN Yuanmin;TANG Kunxian(Third Institute of Oceanography,Ministry of Natural Resources,Xiamen 361005,Fujian,China;Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration,Xiamen 361005,Fujian,China;Key Laboratory of Marine Ecological Conservation and Restoration,Ministry of Natural Resources,Xiamen 361005,Fujian,China;School of Geography and Oceanography,Nanjing University,Nanjing 210023,Jiangsu,China)

机构地区：[1]自然资源部第三海洋研究所,福建厦门361005 [2]福建省海洋生态保护与修复重点实验室,福建厦门361005 [3]自然资源部海洋生态保护与修复重点实验室,福建厦门361005 [4]南京大学地理与海洋科学学院,江苏南京210023

出　　处：《生物资源》2023年第4期314-320,共7页Biotic Resources

基　　金：自然资源部第三海洋研究所基本科研业务费资助项目(海三科2020013、海三科2018007);厦门海洋研究开发院共建资助项目(K200701)。

摘　　要：浓度高于毫摩尔级的铯离子即可对一般的微生物产生毒害作用。迄今为止,研究发现多株可以耐受铯离子的细菌,一些细菌耐受铯离子的浓度甚至超过200毫摩尔,这对于揭示细菌耐受铯离子机制,开展微生物修复铯污染环境具有重要意义。本文系统总结在筛选耐受铯离子细菌方面的研究进展,探讨这些菌株耐受高浓度铯离子的分子机制,展望利用微生物进行铯污染环境修复的前景,以期为探索放射性铯污染环境的微生物生态修复提供参考。Cesium ions with concentrations higher than millimolar level can have toxic effects on general microorgan-isms.Currently,several bacteria that can tolerate cesium ions have been screened,and some strains are capable of tolerat-ing cesium ions at concentrations even higher than 200 millimoles,which is important for revealing the mechanism of bac-terial tolerance to cesium ions and carrying out microbial remediation of cesium-contaminated environments.In this pa-per,we summarize the progress in screening bacteria tolerant to cesium ions systematically,discuss the possible molecu-lar mechanisms,and offer advices to the prospects of using microorganisms for bioremediation of cesium-contaminated en-vironments,in the hope of providing a reference for exploring microbial ecological remediation of radioactive cesium-con-taminated environments.

关 键 词：细菌 铯离子 钾离子 生物修复 耐受性 

分 类 号：P735[天文地球—海洋生物学]