|本期目录/Table of Contents|

[1]刘晓东,吴港,杨智敏,等.RpoN和RpoS参与细菌鞭毛合成与趋化调控的研究进展[J].江苏农业科学,2013,41(12):11-16.
 Liu Xiaodong,et al.Research progress of flagellar biosynthesis and regulation of chemotaxis by RpoN and RpoS[J].Jiangsu Agricultural Sciences,2013,41(12):11-16.
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RpoN和RpoS参与细菌鞭毛合成与趋化调控的研究进展(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第41卷
期数:
2013年12期
页码:
11-16
栏目:
专论
出版日期:
2013-12-25

文章信息/Info

Title:
Research progress of flagellar biosynthesis and regulation of chemotaxis by RpoN and RpoS
作者:
刘晓东12 吴港12 杨智敏12 燕永亮2 林敏2 张云华12
1.安徽农业大学生命科学学院,安徽合肥 230036; 2.中国农业科学院生物技术研究所,北京 100081
Author(s):
Liu Xiaodonget al
关键词:
RpoNRpoS鞭毛趋化调控
Keywords:
-
分类号:
A
DOI:
-
文献标志码:
Q933
摘要:
在自然界中,细菌需要靠趋化运动来趋利避害以获得有利的生存环境。鞭毛作为细菌的运动器官,是趋化的前提与基础,鞭毛的合成组装是一个高度有序、耗能的等级调控过程,每一等级的基因表达都需要多个调控因子参与。RpoN对鞭毛合成基因的表达为正调控,鞭毛调节子FleQ作为RpoN的激活增强子,与RpoN协同调控了鞭毛基因的转录与表达,相反,RpoS负调控包括鞭毛调控σ因子FliA在内的鞭毛合成基因的转录与表达,且rpoS基因的缺失导致鞭毛合成相关基因的转录水平显著上调。RpoS能够负调控诸多鞭毛基因的表达可能是通过调控鞭毛主调节子FleQ或鞭毛调控σ因子FliA来实现的;亦可能是由于RpoS和其他的σ因子竞争有限的核心聚合酶造成的。本文综述了细菌的鞭毛合成与趋化中不同σ因子之间存在复杂的交叉调控。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2013-04-16
基金项目:国家自然科学基金(编号:31170081、31101746);国家“973”计划(编号:2010CB126504)。
作者简介:刘晓东(1984—),男,山东临沂人,硕士研究生,主要从事细菌基因工程研究。E-mail:lxd_0001@126.com。
通信作者:张云华,博士,副教授,从事微生物生物技术研究。E-mail:yunhua9681@163.com。
更新日期/Last Update: 2013-12-25