NDLI: Expression profile analysis of the oxygen response in the nitrogen-fixing Pseudomonas stutzeri A1501 by genome-wide DNA microarray

Content Provider	Springer Nature Link
Author	Dou, YueTan Yan, YongLiang Ping, ShuZhen Lu, Wei Chen, Ming Zhang, Wei Wang, YiPing Jin, Qi Lin, Min
Copyright Year	2008
Abstract	Pseudomonas stutzeri A1501, an associative nitrogen-fixing bacterium, was isolated from the rice paddy rhizosphere. This bacterium fixes nitrogen under microaerobic conditions. In this study, genome-wide DNA microarrays were used to analyze the global transcription profile of A1501 under aerobic and microaerobic conditions. The expression of 135 genes was significantly altered by more than 2-fold in response to oxygen stress. Among these genes, 68 were down-regulated under aerobic conditions; these genes included those responsible for nitrogen fixation and denitrification. Sixty-seven genes were up-regulated under aerobic conditions; these genes included sodC, encoding a copper-zinc superoxide dismutase, PST2179, encoding an NAD(P)-dependent oxidoreductase, PST3584, encoding a 2OG-Fe(II) oxygenase, and PST3602, encoding an NAD(P)H-flavin oxidoreductase. Additionally, seven genes involved in capsular polysaccharide and antigen oligosaccharide biosynthesis together with 17 genes encoding proteins of unknown function were up-regulated under aerobic conditions. The overall analysis suggests that the genes we identified are involved in the protection of the bacterium from oxygen, but the mechanisms of their action remain to be elucidated.
Starting Page	1197
Ending Page	1204
Page Count	8
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	53
Issue Number	8
e-ISSN	18619541
Language	English
Publisher	SP Science in China Press
Publisher Date	2008-04-20
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	Pseudomonas stutzeri A1501 genome-wide DNA microarray oxygen stress nitrogen fixation oxidoreductase Engineering Geosciences Science Chemistry/Food Science Physics Life Sciences
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Transmembrane structure and function ofdctPQM encoding C4-dicarboxylate transport proteins from nitrogen-fixingP. stutzeri A1501

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Expression profile analysis of the oxygen response in the nitrogen-fixing Pseudomonas stutzeri A1501 by genome-wide DNA microarray

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