趋磁细菌磁小体的研究进展  

General overview of magnetosomes in magnetotactic bacteria

作　　者：陈奇[1] 王光利[1] 徐争辉[1] 韩秀英[1] 李峰[1] 

机构地区：[1]淮北师范大学生命科学学院/资源植物学安徽省重点实验室,安徽淮北235000

出　　处：《广东农业科学》2011年第6期227-230,共4页Guangdong Agricultural Sciences

基　　金：国家自然科学基金(30570023)

摘　　要：趋磁细菌是一类能够沿着磁场方向运动的革兰氏阴性细菌的总称,其最显著的共同特征是胞内能够合成链状排列、具有外膜包被的Fe3O4或Fe3S4磁性颗粒—磁小体。概要介绍了趋磁细菌的发现、生态分布、一般特性和分离纯化存在的问题,重点讨论了磁小体合成的主要过程,并对将来磁小体的研究进行了展望。Magnetotactic bacteria are a kind of Gram-negative bacteria with the capability of swimming along geomagnetic field lines.The most distinguished characteristic of the bacteria in common is capable of synthesizing specific intracellular structures,magnetosomes,which are chain-linked and membrane-enveloped crystals of magnetic iron oxide or iron sulfide.The paper provided a general review of magnetotactic bacteria,including their discovery,ecological distribution,basic characteristics,main problems of separation and purification.The chief processes of magnetosomes＇ synthesis were discussed especially.The future research perspectives of magnetosomes are also proposed.

关 键 词：趋磁细菌 磁小体 磁小体膜 机制 

分 类 号：Q939.1[生物学—微生物学]