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Position: Home > Articles > Progress in Bacterial Chemotaxis Chinese Agricultural Science Bulletin 2015,31 (6) 121-127

细菌趋化性研究进展

作  者:
杨姗姗;马丽;孙柏欣;张晓晓;杨玉文;赵廷昌
单  位:
河南农业职业学院;辽宁省农业科学院植物保护研究所;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
关键词:
趋化性;运动方式;信号转导;致病性
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。
译  名:
Progress in Bacterial Chemotaxis
作  者:
Yang Shanshan;Ma Li;Sun Baixin;Zhang Xiaoxiao;Yang Yuwen;Zhao Tingchang;State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Henan Vocational College of Agriculture;Liaoning Academy of Agricultural Sciences;
关键词:
chemotaxis;;movements;;signal transduction;;pathogenicity
摘  要:
Chemotaxis of bacteria refers to the response of some bacteria who own the athletic ability to aconcentration gradient of a chemical attractant or repellent.In order to study the progress of bacterialchemotaxis,this paper focuses on the movement of bacterial chemotaxis,the molecular mechanism ofchemotaxis,the role of chemotaxis in the pathogenesis and the significance of the bacterial chemotaxis indisease control.Movements of this bacterium include swimming and rolling which are regulated by thecontrarotation and clockwise rotation of flagellum.Motile bacterial often use sophisticated chemotaxis signalingsystem to direct their movements.In general,bacterial chemotactic signal transduction pathways have threebasic elements:(1) signal reception by bacterial chemoreceptors located on the membrane;(2) signaltransduction to relay the signals from membrane receptors to the motor;and(3) signal adaptation to desensitizethe initial signal input.

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