Diazotrophic growth of Rhodospirillum rubrum with 2-oxoglutarate as sole carbon source affects regulation of nitrogen metabolism as well as the soluble proteome

被引：0

作者：

Teixeira, Pedro Filipe ^{[1
]}

Selao, Tiago Toscano ^{[1
]}

Henriksson, Veronika ^{[1
]}

Wang, He ^{[1
]}

Noren, Agneta ^{[1
]}

Nordlund, Stefan ^{[1
]}

机构：

[1] Stockholm Univ, Dept Biochem & Biophys, S-10691 Stockholm, Sweden

来源：

RESEARCH IN MICROBIOLOGY | 2010年 / 161卷 / 08期

基金：

瑞典研究理事会;

关键词：

Ammonium assimilation; Nitrogen fixation; Regulation; Rhodospirillum rubrum;

D O I：

10.1016/J.resmic.2010.06.003

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

2-Oxoglutarate plays a central role as a signal in the regulation of nitrogen metabolism in the phototrophic diazotroph Rhodospirillum rubrum. In order to further study the role of this metabolite, we have constructed an R. rubrum strain that has the capacity to grow on 2-oxoglutarate as sole carbon source, in contrast to wild-type R. rubrum. This strain has the same growth characteristics as wild-type with malate as carbon source, but showed clear metabolic differences when 2-oxoglutarate was used. Among other things, the regulation of nitrogen metabolism is altered, which can be related to different modification profiles of the regulatory PII proteins. (C) 2010 Elsevier Masson SAS. All rights reserved.

引用

页码：651 / 659

页数：9

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