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学科主题: Microbiology
题名: The N-Acetylmuramic Acid 6-Phosphate Etherase Gene Promotes Growth and Cell Differentiation of Cyanobacteria under Light-Limiting Conditions
作者: Jiang, Haibo1; Kong, Renqiu1; Xu, Xudong1
通讯作者: Kong, RQ, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
关键词: SP-STRAIN PCC-7120 ; ACTIVATED HETEROTROPHIC GROWTH ; SYNECHOCYSTIS SP PCC-6803 ; BETA-LACTAMASE INDUCTION ; ESCHERICHIA-COLI ; HETEROCYST DIFFERENTIATION ; ANABAENA ; WALL ; PEPTIDOGLYCAN ; ACETYLGLUCOSAMINIDASE
刊名: JOURNAL OF BACTERIOLOGY
发表日期: 2010-04-15
DOI: 10.1128/JB.01661-09
卷: 192, 期:8, 页:2239-2245
收录类别: SCI
文章类型: Article
部门归属: [Jiang, Haibo; Kong, Renqiu; Xu, Xudong] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China [30825003]; State Key Basic Research Development Program of China [2008CB418001]; Chinese Academy of Sciences [KZCX1-YW-14-1]
类目[WOS]: Microbiology
研究领域[WOS]: Microbiology
摘要: Inactivation of sll0861 in Synechocystis sp. strain PCC 6803 or the homologous gene alr2432 in Anabaena sp. strain PCC 7120 had no effect on the growth of these organisms at a light intensity of 30 mu mol photons m(-2) s(-1) but reduced their growth at a light intensity of 5 or 10 mu mol photons m(-2) s(-1). In Anabaena, inactivation of the gene also significantly reduced the rate of heterocyst differentiation under low-light conditions. The predicted products of sll0861 and alr2432 and homologs of these genes showed similarity to N-acetylmuramic acid 6-phosphate etherase (MurQ), an enzyme involved in peptidoglycan recycling, in Escherichia coli. E. coli murQ and the cyanobacterial homologs could functionally substitute for each other. We hypothesize that murQ in cyanobacteria promotes low-light adaptation through reutilization of peptidoglycan degradation products.
英文摘要: Inactivation of sll0861 in Synechocystis sp. strain PCC 6803 or the homologous gene alr2432 in Anabaena sp. strain PCC 7120 had no effect on the growth of these organisms at a light intensity of 30 mu mol photons m(-2) s(-1) but reduced their growth at a light intensity of 5 or 10 mu mol photons m(-2) s(-1). In Anabaena, inactivation of the gene also significantly reduced the rate of heterocyst differentiation under low-light conditions. The predicted products of sll0861 and alr2432 and homologs of these genes showed similarity to N-acetylmuramic acid 6-phosphate etherase (MurQ), an enzyme involved in peptidoglycan recycling, in Escherichia coli. E. coli murQ and the cyanobacterial homologs could functionally substitute for each other. We hypothesize that murQ in cyanobacteria promotes low-light adaptation through reutilization of peptidoglycan degradation products.
关键词[WOS]: SP-STRAIN PCC-7120 ; ACTIVATED HETEROTROPHIC GROWTH ; SYNECHOCYSTIS SP PCC-6803 ; BETA-LACTAMASE INDUCTION ; ESCHERICHIA-COLI ; HETEROCYST DIFFERENTIATION ; ANABAENA ; WALL ; PEPTIDOGLYCAN ; ACETYLGLUCOSAMINIDASE
语种: 英语
WOS记录号: WOS:000276048300022
ISSN号: 0021-9193
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13793
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China

Recommended Citation:
Jiang, Haibo; Kong, Renqiu; Xu, Xudong.The N-Acetylmuramic Acid 6-Phosphate Etherase Gene Promotes Growth and Cell Differentiation of Cyanobacteria under Light-Limiting Conditions,JOURNAL OF BACTERIOLOGY,2010,192(8):2239-2245
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