Project description:The ability of Bradyrhizobium japonicum and B. elkanii strains to utilize alkane and aromatic sulfonates as sole sources of sulfur for growth was investigated. All of the strains tested were able to utilize alkane sulfonates, but not aromatic sulfonates for growth. Whole-genome transcriptional profiling was used to assess B. japonicum USDA 110 genes involved in growth on alkane sulfonates, as compared to growth on sulfate and cysteine. Two sets of genes, bll7007 to bll7011 and bll6449 to 6456 were highly expressed during growth with sulfate and sulfonates. These genes were predicted to encode alkanesulfonate monooxygenases and ABC transporter components. Reverse transcription-PCR (RT-PCR) analyses showed that these genes were organized in two operon-like structures and expressed as polycistronic messages. The sulfonate monooxygenase encoded by bll7010 (ssuD) complemented an E. coli mutant defective in utilization of sulfonates. The expression of many genes that were induced during growth on cysteine and taurine were under the control of the FixLJ-FixK2-FixK1 symbiotic nitrogen fixation cascade, indicating there is a novel linkage between sulfur metabolism and nitrogen fixation. Taken together, results of this study indicate that Bradyrhizobium sp. strains are metabolically diverse and likely use organosulfur compounds for growth and survival, and for legume nodulation and nitrogen fixation in soil systems.

2009-11-17 | GSE19039 | GEO

Whole-Genome Transcriptional analysis of Sulfate and Sulfonate assimilation by Bradyrhizobium japonicum USDA 110

2010-06-19 | E-GEOD-19039 | biostudies-arrayexpress

Bradyrhizobium diazoefficiens strain:USDA 122

Project description:Bradyrhizobium diazoefficiens USDA 122 genome sequencing and assembly

| PRJNA686127 | ENA

Comparison of Bradyrhizobium japonicum parent strain LO with irr mutant strain LODTM5

Project description:The purpose of the study is to identify Irr-responsive genes in the bacterium Bradyrhizobium japonicum. Parent strain LO was compared to irr mutant strain LODTM5 by whole genome microarray analysis. Both cell types were grown in iron-limited media. Keywords: Comparison of B. japonicum wild type and mutant cells

2006-03-15 | GSE4155 | GEO

Bradyrhizobium japonicum USDA 135

Project description:Bradyrhizobium japonicum USDA 135 Genome sequencing and assembly

| PRJNA163009 | ENA

Bradyrhizobium japonicum USDA 38

Project description:Bradyrhizobium japonicum USDA 38 Genome sequencing and assembly

| PRJNA165321 | ENA