Rhizobium Leguminosarum: A Model Arsenic Resistant, Arsenite Oxidizing Bacterium Possessing Plant Growth Promoting Attributes

The threat of arsenic (As) pollution has become serious and leading to opt low-cost microbial remediation strategies.Some bacteria have the ability resist As. A group rhizosphere absorb arsenic. So these may be a good candidate for bioremediation from contaminated environment. Our present study identifying suitable rhizobacterial strains led isolation As-tolerant pollutedrhizospheric soils lentil in West Bengal, India.The isolated strain LAR-7 had high MIC (minimum inhibitory concentration) towards arsenate (260 mM) arsenite (27.5 transformed 39% arenite under laboratory condition. Further, enormous plant growth-promoting characteristics (PGP), as categorized by efficient solubilize phosphate, siderophore production, production indole acetic acid-like molecules, ACC deaminase nodule formation As stressed Based on 16S rRNA homology was identified Rhizobium leguminosarum andemerged most potent decontamination growth promoter stress environment