Effect of rhizospheric inoculation of isolated arsenic (As) tolerant strains on growth, As-uptake and bacterial communities in association with Adiantum capillus-veneris.

Two arsenic (As) hyper-tolerant bacterial strains NM01 Paracoccus versutus and NM04 Aeromonas caviae were isolated from As polluted site of West Bengal, India. The strains not only possess the potential to tolerate up to 20,000 mgl As(V) and 10,000 mgl As(III) but also possess plant growth promoting (PGP) traits like phosphate solubilization, siderophore production, IAA production. Greenhouse pot experiments were conducted to assess the effect of rhizospheric inoculation of both the strains individually and in consortia in As accumulation by Adiantum capillus-veneries.

Arsenic mediated modifications in Bacillus aryabhattai and their biotechnological applications for arsenic bioremediation.

The present study reports the arsenic (As) tolerance mechanism of bacteria Bacillus aryabhattai (NBRI014). The data explores the intracellular accumulation and volatilization of As from the culture medium after 48 h of exposure to 25,000 mg l arsenate As(V). The study also provides the evidence of presence of ars operon in bacteria, which may have played an important role in reducing As toxicity.

Brevundimonas diminuta mediated alleviation of arsenic toxicity and plant growth promotion in Oryza sativa L.

Arsenic (As), a toxic metalloid adversely affects plant growth in polluted areas. In the present study, we investigated the possibility of improving phytostablization of arsenic through application of new isolated strain Brevundimonas diminuta (NBRI012) in rice plant [Oryza sativa (L.) Var.