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TranscriptomicsTranscriptional profiling of nitrogen fixation and the role of NifA in the diazotrophic endophyte Azoarcus sp. strain BH72
This SuperSeries is composed of the SubSeries listed below. Refer to individual Series
ORGANISM(S): Azoarcus sp. 
2013-08-15 | E-GEOD-49913 | biostudies-arrayexpress
TranscriptomicsTranscriptomic analysis of responses to exudates reveal genes required for rhizosphere competence of the endophyte Azoarcus sp. strain BH72.
Endophytic colonization is a very complex process which is not yet completely understood. Molecules exuded by the plants may act as signals which influence the ability of the microbe to colonize the host or survive in the rhizosphere. Here we investigated whether root exudates of the host might play...
ORGANISM(S): Azoarcus sp. 
2012-11-30 | E-GEOD-35187 | biostudies-arrayexpress
TranscriptomicsTranscriptome profile of wild type Azoarcus sp. BH72 grown under microaerobic condition (0.3% oxygen) compared with that grown under aerobic condition (21% oxygen), both in presence of combined nitrogen source, respectively
Low oxygen tensions are often encountered in flooded soils of rice fields by root-associated, strictly respiratory, beta proteobacterium, Azoarcus sp. BH72 which fixes nitrogen only under microaerobic condition. In this study, genome wide oligonucleotide microarrays were used compare the global tran...
ORGANISM(S): Azoarcus sp. BH72 
2014-09-13 | E-GEOD-61387 | biostudies-arrayexpress
TranscriptomicsTranscriptome comparison of wild type Azoarcus sp. strain BH72 grown under nitrogen fixation (experiment) with cells grown with combined nitrogen (ammonia) as nitrogen source
Model endophyte Azoarcus sp. BH72 is known to contribute fixed nitrogen to its host Kallar grass by nitrogen fixation and also expresses nitrogenase genes endophytically in rice seedlings in gnotobiotic culture. Availability of fixed nitrogen is one of the important signals regulating the transcript...
ORGANISM(S): Azoarcus sp. 
2013-08-01 | E-GEOD-49394 | biostudies-arrayexpress
TranscriptomicsTranscriptome comparison of the wild type strain Azoarcus sp. BH72 with that of nifLA knockout strain under nitrogen fixing condition
Azoarcus sp. BH72 is known to express nitrogenase genes endophytically in rice seedlings in gnotobiotic culture. Availability of fixed nitrogen is one of the important signals regulating the transcription of nitrogenase genes and hence nitrogen fixing activity. NifA is the essential transcription a...
ORGANISM(S): Azoarcus sp. 
2013-08-15 | E-GEOD-49912 | biostudies-arrayexpress
TranscriptomicsCharacterization of cell density-regulated gene expression of the grass endophyte Azoarcus sp. BH72
Azoarcus sp. BH72 is able to communicate via cell density-dependent gene regulation. Here, the impact of cell-free conditioned culture supernatants, obtained from stationary phase Azoarcus wild type cultures, on gene expression was investigated determining changes in transcript profiles when early e...
ORGANISM(S): Azoarcus sp. 
2011-12-01 | E-GEOD-25939 | biostudies-arrayexpress
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