Bradyrhizobium sp. strain TUTVuML62
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ABSTRACT:
PROVIDER: PRJNA957847 | ENA |
REPOSITORIES: ENA
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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
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Project description:Nodule-forming bacteria play crucial roles in plant health and nutrition by fixing atmospheric nitrogen. Despite the importance of this relationship, how nodule-forming bacteria are affected by plant exudates and soil minerals is not fully characterized. Of particular interest are the effects of plant-derived methanol and lanthanide metals on the growth of nitrogen-fixing Rhizobiales. Prior work has demonstrated that select Bradyrhizobium are able to assimilate methanol only in the presence of lanthanide metals; however, the pathway enabling assimilation remains unknown. Here we characterize Bradyrhizobium sp. USDA 3456 to determine the pathways involved in methanol metabolism. Based on genomic analyses, we hypothesized that methanol assimilation in these organisms occurs via the lanthanide-dependent methanol dehydrogenase XoxF, followed by oxidation of formaldehyde via the glutathione-linked oxidation pathway, subsequent oxidation of formate via formate dehydrogenases, and finally assimilation of CO2 via the Calvin Benson Bassham (CBB) pathway. Transcriptomics revealed upregulation of the aforementioned pathways in Bradyrhizobium sp. USDA 3456 during growth on methanol. Assays demonstrated increased activity of the glutathione-linked oxidation pathway and formate dehydrogenases during growth on methanol compared to succinate. 13C-labeling studies demonstrate the presence of CBB intermediates and label incorporation during growth on methanol. Our findings provide multiple lines of evidence supporting the proposed XoxF-CBB pathway and, combined with genomic analyses, suggest that this metabolism is widespread among Bradyrhizobium and Sinorhizobium species.
2025-06-27 | GSE295604 | GEO
Project description:The purpose of the study is to identify iron-responsive genes in the bacterium Bradyrhizobium japonicum. Parent strain LO was grown under iron limitation or under iron sufficiency and compared to each other by whole genome microarray analysis. Keywords: Comparison of cells grown under low or high iron conditons
2006-03-15 | GSE4143 | GEO
Project description:Bradyrhizobium sp. W strain:W Genome sequencing
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Project description:Bradyrhizobium sp. strain 27S5 Complete Genome sequencing
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Project description:Bradyrhizobium sp. A5 strain:A5 Genome sequencing
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Project description:To circumvent the paucity of nitrogen sources in the soil Legume plants evolved a symbiotic interaction with nitrogen-fixing soil bacteria called rhizobia. During symbiosis, legumes form root organs called nodules, where bacteria are housed intracellularly and become active nitrogen fixers known as bacteroids. Depending on their host plant, bacteroids can adopt different morphotypes, being either unmodified (U), elongated (E) or spherical (S). E- and S-typr bacteroids undergo a terminal differentiation leading to irreversible morphological changes and DNA endoreduplication. Previous studies suggest that differentiated bacteroids display an increased symbiotic efficiency (E>U & S>U). In this study, we used a combination of Aeschynomene species inducing E- and S-type bacteroids in symbiosis with Bradyrhizobium sp. ORS285 to show that S- performed better than E-type bacteroids. Thus, we performed a transcriptomic analysis on E- and S-type bacteroids to identify the bacterial functions involved in each bacteroid type.
2018-01-05 | GSE108744 | GEO
Project description:Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is a persistent nitramine explosive with long-lasting properties. Rhodococcus sp. strain DN22 has been discovered as one of the microorganisms capable of RDX degradation. Despite respectable studies on Rhodococcus sp. strain DN22, the proteins participating in RDX degradation (Oxidoreductase and Cytochrome P450) in the strain remain to be fragments. In this study, complete genome of Rhodococcus sp. strain DN22 was sequenced and analyzed, and the entire sequences of the two genes encoding Oxidoreductase and Cytochrome P450 in Rhodococcus sp. strain DN22 were predicted, which were validated through proteomic data. Besides, despite the identification of certain chemical substances as proposed characterized degradation intermediates of RDX, few studies have investigated the physiological changes and metabolic pathways occurring within Rhodococcus sp. cells when treated with RDX, particularly through the use of mass spectrometry-based omics. Hence, proteomics and metabolomics of Rhodococcus sp. strain DN22 were performed and analyzed with the presence or absence of RDX in the medium. A total of 3186 protein groups were identified and quantified between the two groups, with 117 proteins being significantly differentially expressed proteins. A total of 1056 metabolites were identified after merging positive and negative ion modes, among which 131 metabolites were significantly differential. Through the combined analysis of differential proteomics and metabolomics, several KEGG pathways, including two-component system, ABC transporters, alanine, aspartate and glutamate metabolism, arginine biosynthesis, purine metabolism, nitrogen metabolism, and phosphotransferase system (PTS) were found to be significantly enriched. We expect that our investigation will expand the acquaintance of Rhodococcus sp. strain DN22, and the knowledge of microbial degradation.
2024-05-22 | PXD044565 | Pride
Project description:Bradyrhizobium sp. Genome sequencing and assembly
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