State Key Laboratory of Desert and Oasis Ecology, Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Science, Urumqi, 830011, Xinjiang, China
*Present address: Department of Biotechnology, National Institute of Technology, Raipur-492010 (CG), India
Online published on 20 June, 2017.
Current study was undertaken to analyse arsenite oxidase gene (aioA-gene) of bacterial strain from arsenic rich gold mine dump of Xinjiang, China. Eleven arsenite oxidizing bacteria were isolated which showed arsenic resistance level up to 80 mM concentration. All the strains were identified using 16s rRNA gene sequence analysis and observed that identified strains belongs to two groups Fermicutes and Gamma-proteo-bacteria. Out of these, six strain were positive for arsenic resistance, containing Mo-pterin As(III) oxidase or (aioA gene) a larger subunit of arsenite oxidizing gene. Due to high resistance and oxidizing ability of these resistant strains, they may be employed for bioremediation of arsenic contaminated sites.
aioA gene, Bacillus sp. Acinetobacter sp. Pseudomonas sp
