title: Brevibacillus sp. KUMAs2, a bacterial isolate for possible bioremediation of arsenic in rhizosphere.
abstract: Arsenic (As) contamination of soil and water has been considered as a major global environmental issue during last few decades. Among the various methods so far reported for reclamation of As contaminated rhizosphere soil, bioremediation using bacteria has been found to be most promising. An As resistant bacterial isolate Brevibacillus sp. KUMAs2 was obtained from As contaminated soil of Nadia, West Bengal, India, which could resist As(V) and As(III) a maximum of 265mM and 17mM, respectively. The strain could remove ~40 percent As under aerobic culture conditions. As resistant property in KUMAs2 was found to be plasmid-borne, which carried both As oxidizing and reducing genes. The strain could promote chilli plant growth under As contaminated soil environment by decreasing As accumulation in plant upon successful colonization in the rhizosphere, which suggests the possibility of using this isolate for successful bioremediation of As in the crop field.
authors.affiliation: Department of Microbiology, University of Kalyani, Kalyani 741235, India.
authors.forename: Ivy
authors.initials: I
authors.lastname: Mallick
authors.affiliation: Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
authors.forename: Sk Tofajjen
authors.initials: ST
authors.lastname: Hossain
authors.affiliation: Department of Botany, Vivekananda Mahavidyalaya, Haripal, Hooghly 712405, India.
authors.forename: Sangram
authors.initials: S
authors.lastname: Sinha
authors.affiliation: Department of Microbiology, University of Kalyani, Kalyani 741235, India. Electronic address: dr.samirmukherjee@gmail.com.
authors.forename: Samir Kumar
authors.initials: SK
authors.lastname: Mukherjee
mesh_terms: D001151:Arsenic / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D058675:Brevibacillus / Q000302:isolation & purification* / Q000502:physiology*; D024881:Drug Resistance, Bacterial / Q000235:genetics; D005798:Genes, Bacterial; D007194:India; D046529:Microscopy, Electron, Transmission; D010084:Oxidation-Reduction; D010957:Plasmids; D058441:Rhizosphere; D012987:Soil; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000302:isolation & purification / Q000378:metabolism*; D013052:Spectrometry, X-Ray Emission
chemical_list: D012987:Soil; D012989:Soil Pollutants; D001151:Arsenic
keywords: Arsenic removal; Arsenic resistance; Bioremediation; Brevibacillus; Rhizosphere