期刊
JOURNAL OF BACTERIOLOGY
卷 192, 期 8, 页码 2239-2245出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/JB.01661-09
关键词
-
类别
资金
- National Natural Science Foundation of China [30825003]
- State Key Basic Research Development Program of China [2008CB418001]
- Chinese Academy of Sciences [KZCX1-YW-14-1]
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据