Bioreduction of hexavalent chromium by a novel haloalkaliphilic strain NRC-R isolated from hypersaline soda lakes.

Unlabelled: A novel Cr(VI)-resistant haloalkaliphilic bacterial strain NRC-R, identified as , was isolated from hypersaline soda lakes and characterized for its Cr(VI) bioreduction efficiency. Strain NRC-R grew well and effectively reduced Cr(VI) under a wide range of sodium chloride, pH, shaking velocity and temperature, showing maximum Cr(VI) reduction at 8% NaCl, pH 10, 150 rpm and 35 °C, respectively. Strain NRC-R was able to grow and reduce Cr(VI) effectively in the presence of different heavy metals and oxyanions (Pb, Zn, Co, Mn, Ni, Mo, HPO , NO , SO and HCO ).