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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 tra...
ORGANISM(S): Sinorhizobium meliloti 
Sinorhizobium meliloti can live as a soil saprophyte, and can engage in a nitrogen fixing symbiosis with plant roots. To succeed in such diverse environments, the bacteria must continually adjust gene expression. Transcriptional plasticity in eubacteria is often mediated by alternative sigma facto...
ORGANISM(S): Sinorhizobium meliloti 
We characterized transcriptomes of a strain overexpressing syrA. Our work shows that the syrA transcriptome shares similar gene expression changes to the syrM and nodD3 transcriptomes and that nodD3 and syrA may be the only targets directly activated by SyrM. We propose that most of the gene expre...
ORGANISM(S): Sinorhizobium meliloti 
We characterized transcriptomes of a strain overexpressing syrM. Our work shows that the syrM transcriptome shares similar gene expression changes to the syrA and nodD3 transcriptomes and that nodD3 and syrA may be the only targets directly activated by SyrM. We propose that most of the gene expre...
ORGANISM(S): Sinorhizobium meliloti 
This SuperSeries is composed of the SubSeries listed below. Refer to individual Series
ORGANISM(S): Sinorhizobium meliloti 
Sinorhizobium meliloti lives as a soil saprophyte, and engages in a nitrogen fixing symbiosis with plant roots. To succeed in such diverse environments, the bacteria must continually adjust gene expression. Transcriptional plasticity in eubacteria is often mediated by alternative sigma factors int...
ORGANISM(S): Sinorhizobium meliloti 
Although diminutive in size, bacteria possess highly diverse and spatially confined cellular structures. Two related alpha-proteobacteria, Sinorhizobium meliloti and Caulobacter crescentus, serve as models for investigating the genetic basis of morphologic variations. S. meliloti, a symbiont of le...
ORGANISM(S): Sinorhizobium meliloti 
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