GEO DataSets

(Submitter supplied) Effect of NCR247 and NCR335 on S. meliloti transcriptosome using Solid4 sequencer

Organism:

Sinorhizobium meliloti 1021

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17212

6 Samples

Download data: XLSX

(Submitter supplied) We profiled gene expression in synchronized cultures of Sinorhizobium meliloti treated with or without the nodule-specific cysteine-rich peptide 247. We compared gene expression between the two conditions at 5 timepoints (15, 30, 60, 90, 120) following the addition of the peptide

Organism:

Sinorhizobium meliloti; Sinorhizobium meliloti 1021

Type:

Expression profiling by array

Platform:

GPL18182

31 Samples

Download data: TXT

(Submitter supplied) We characterized the transcriptome of a Sinorhizobium meliloti emmA insertion mutant strain.

Organism:

Sinorhizobium meliloti; Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL9757

6 Samples

Download data: CEL

(Submitter supplied) The RNA-binding protein Hfq is a global regulator, which controls diverse cellular processes in bacteria. To begin understanding the role of Hfq in the Sinorhizobium meliloti-Medicago truncatula nitrogen-fixing symbiosis, we defined free-living and symbiotic phenotypes of an hfq mutant. Over 500 transcripts were differentially accumulated in the hfq mutant of S. meliloti Rm1021 when grown in a shaking culture.

Organism:

Medicago truncatula; Sinorhizobium meliloti

Type:

Expression profiling by array

Platform:

GPL9757

6 Samples

Download data: CEL

(Submitter supplied) Symbiotic nitrogen fixation (SNF) is an energetically expensive process performed by bacteria known as rhizobia during endosymbiotic relationships with leguminous plants. The bacteria require the plant to provide a carbon source for generation of the reductant to power SNF. Although it is well known that C4-dicarboxylates (succinate, fumarate, malate) function as the primary, if not sole, carbon source provided to the rhizobia, the relative contribution of each C4-dicarboxylate is not known. more...

Organism:

Pisum sativum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23779

6 Samples

Download data: XLSX

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Medicago truncatula; Sinorhizobium meliloti

Type:

Expression profiling by array

Platform:

GPL9757

65 Samples

Download data: CEL

(Submitter supplied) We characterized transcriptomes for strains overexpressing each of the Sinorhizobium meliloti ECF sigma factors the via a plasmid-borne, melibiose-inducible promoter plasmid (PmelA; pCAP11: Pinedo et al. 2008 J Bacteriol 190:2947-2956) compared to control strains carrying the empty vector.

Organism:

Sinorhizobium meliloti; Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL9757

45 Samples

Download data: CEL

(Submitter supplied) We characterized transcriptomes of Sinorhizobium meliloti root nodule bacteria with mutations in sigma factor genes.

Organism:

Medicago truncatula; Sinorhizobium meliloti

Type:

Expression profiling by array

Platform:

GPL9757

20 Samples

Download data: CEL

(Submitter supplied) Investigation of whole genome gene expression level changes in a Sinorhizobium meliloti 1021 rpoH1 rpoH2 double mutant, compared to the wild-type strain. The mutations engineered into this strain render it deficient in symbiotic nitrogen fixation. The mutants analyzed in this study are further described in Mitsui, H, T. Sato, Y. Sato, and K. Minamisawa. 2004. Sinorhizobium meliloti RpoH1 is required for effective nitrogen-fixing symbiosis with alfalfa. more...

Organism:

Sinorhizobium meliloti 1021

Type:

Expression profiling by array

Platform:

GPL19375

20 Samples

Download data: CALLS, PAIR

(Submitter supplied) For transcript analysis of responses in Medicago truncatula to its symbiont Sinorhizobium meliloti wild type or the succinoglycan-deficient exoY mutant we compared transcripts from line A17 roots inoculated with 25 mL OD = 0.05 S. meliloti wild type or exoY mutant. Keywords: 1 line; 2 S. meliloti samples

Organism:

Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL4799

6 Samples

Download data

(Submitter supplied) Within this work we identified and characterized SMc03169 (hhrA) as a new Sinorhizobium meliloti gene product with relevance to biological nitrogen fixation symbiosis with leguminous plants. HhrA belongs to the TetR-family of repressors and its deletion from S. meliloti genome affected considerably gene expression as well as several phenotypic traits.

Organism:

Medicago sativa; Medicago truncatula; Sinorhizobium meliloti

Type:

Expression profiling by array

Platform:

GPL4652

6 Samples

Download data: CEL

(Submitter supplied) We wanted to test the effect on global gene expression of depleting the essential cell cycle regulator CtrA in order to determine the genes both indirectly and directly transcriptionally regulated by CtrA Gene expression changes in S. meliloti 1,2,4 and 6 hours post CtrA depletion

Organism:

Sinorhizobium meliloti; Sinorhizobium meliloti 1021

Type:

Expression profiling by array

Platform:

GPL18182

24 Samples

Download data: TXT