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中国农学通报 ›› 2015, Vol. 31 ›› Issue (6): 121-127.doi: 10.11924/j.issn.1000-6850.casb14110008

• 生物技术科学 • 上一篇    下一篇

细菌趋化性研究进展

杨姗姗1,马 丽2,孙柏欣3,张晓晓1,杨玉文1,赵廷昌1   

  1. (1中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室,北京 100193;2河南农业职业学院,郑州 451450;3辽宁省农业科学院植物保护研究所,沈阳 110161)
  • 收稿日期:2014-11-02 修回日期:2014-12-11 接受日期:2014-12-24 出版日期:2015-03-20 发布日期:2015-03-20
  • 通讯作者: 赵廷昌
  • 基金资助:
    公益性行业(农业)科研专项“西甜瓜种传细菌性果斑病综合防控技术研究与示范”(201003066);国家西甜瓜产业技术体系(CARS-26);中国农业科学院科技创新工程项目“作物细菌病害流行与控制”。

Progress in Bacterial Chemotaxis

Yang Shanshan1, Ma Li2, Sun Baixin3, Zhang Xiaoxiao1, Yang Yuwen1, Zhao Tingchang1   

  1. (1State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193;2Henan Vocational College of Agriculture, Zhengzhou 451450;3Liaoning Academy of Agricultural Sciences, Shenyang 110161)
  • Received:2014-11-02 Revised:2014-12-11 Accepted:2014-12-24 Online:2015-03-20 Published:2015-03-20

摘要: 细菌趋化性是指有运动能力的细菌对物质化学浓度梯度做出的反应,使细菌趋向有益刺激,逃避有害刺激。为研究细菌趋化性的研究进展,对趋化细菌运动方式、趋化性分子机制、趋化性在致病机理中的作用以及趋化性对细菌病害防治的重要意义进行概述。趋化细菌的运动有泳动和翻滚2种方式,分别由鞭毛的逆时针和顺时针旋转所调节。细菌的运动需要趋化信号转导系统的控制,通常信号转导途径分3个部分:(1)膜上趋化受体接收信号;(2)从膜受体到鞭毛马达的信号转导;(3)对最初信号输入的适应。

关键词: 遗传分析, 遗传分析

Abstract: Chemotaxis of bacteria refers to the response of some bacteria who own the athletic ability to a concentration gradient of a chemical attractant or repellent. In order to study the progress of bacterial chemotaxis, this paper focuses on the movement of bacterial chemotaxis, the molecular mechanism of chemotaxis, the role of chemotaxis in the pathogenesis and the significance of the bacterial chemotaxis in disease control. Movements of this bacterium include swimming and rolling which are regulated by the contrarotation and clockwise rotation of flagellum. Motile bacterial often use sophisticated chemotaxis signaling system to direct their movements. In general, bacterial chemotactic signal transduction pathways have three basic elements: (1) signal reception by bacterial chemoreceptors located on the membrane; (2) signal transduction to relay the signals from membrane receptors to the motor; and (3) signal adaptation to desensitize the initial signal input.