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学科主题: Microbiology
题名: Role of Rbp1 in the Acquired Chill-Light Tolerance of Cyanobacteria
作者: Tan, Xiaoming ; Zhu, Tao ; Shen, Si ; Yin, Chuntao ; Gao, Hong ; Xu, Xudong
通讯作者: Xu, XD, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China ; xux@ihb.ac.cn
关键词: RNA-BINDING PROTEIN ; SP STRAIN PCC-6803 ; MICROCYSTIS-AERUGINOSA KUTZ ; SYNECHOCYSTIS SP PCC-6803 ; ALPHA-TOCOPHEROL ; PCC 6803 ; GROWTH ; GENE ; IDENTIFICATION ; TEMPERATURE
刊名: JOURNAL OF BACTERIOLOGY
发表日期: 2011
卷: 193, 期:11, 页:2675-2683
收录类别: SCI
部门归属: [Tan, Xiaoming; Zhu, Tao; Shen, Si; Yin, Chuntao; Gao, Hong; Xu, Xudong] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
资助者: National Natural Science Foundation of China [30825003]; State Key Basic Research Development Program of China [2008CB418001]
摘要: Synechocystis sp. strain PCC 6803 cultured at 30 degrees C losses viability quickly under chill (5 degrees C)-light stress but becomes highly tolerant to the stress after conditioning at 15 degrees C (Y. Yang, C. Yin, W. Li, and X. Xu, J. Bacteriol. 190:1554-1560, 2008). Hypothetically, certain factors induced during preconditioning are involved in acquisition of chill-light tolerance. In this study, Rbp1 (RNA-binding protein 1) rather than Rbp2 was found to be accumulated during preconditioning, and the accumulation of Rbp1 was correlated with the increase of chill-light tolerance. Inactivation of its encoding gene rbp1 led to a great reduction in the acquired chill-light tolerance, while ectopic expression of rbp1 enabled the cyanobacterium to survive the chill-light stress without preconditioning. Microarray analyses suggested that the Rbp1-dependent chill-light tolerance may not be based on its influence on mRNA abundance of certain genes. Similarly to that in Synechocystis, the Rbp1 homologue(s) can be accumulated in Microcystis cells collected from a subtropic lake in low-temperature seasons. Rbp1 is the first factor shown to be both accumulated early during preconditioning and directly involved in development of chill-light tolerance in Synechocystis. Its accumulation may greatly enhance the overwintering capability in certain groups of cyanobacteria.
语种: 英语
WOS记录号: WOS:000290527900001
ISSN号: 0021-9193
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/15690
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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Tan, Xiaoming; Zhu, Tao; Shen, Si; Yin, Chuntao; Gao, Hong; Xu, Xudong.Role of Rbp1 in the Acquired Chill-Light Tolerance of Cyanobacteria,JOURNAL OF BACTERIOLOGY,2011,193(11):2675-2683
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