Remediation of arsenic in mung bean (Vigna radiata) with growth enhancement by unique arsenic-resistant bacterium Acinetobacter lwoffii.

摘要: Abstract Arsenic, a carcinogenic and toxic contaminant of soil water, affects human health adversely. During last few decades, it has been an important global environmental issue. Among several arsenic detoxification methods remediation using resistant microbes is proved to be environment-friendly cost-effective. This study aimed test the effects utilizing bacterial strain Acinetobacter lwoffii (RJB-2) on uptake growth mung bean plants (Vigna radiata). RJB-2 exhibited tolerance up 125 mM (V) 50 mM (III). produced plant promoting substances e.g. indole acetic acid (IAA), siderophores, exopolysaccharide (EPS) phosphate solubilization in absence presence arsenic. Pot experiments were used scrutinize role grown amended with 22.5 mg kg− 1 sodium arsenate (Na2HAsO4·7H2O). could arrest just 7 days increase growth, number per pot, chlorophyll carotenoid content plants. formed biofilm its root-association helped abate bean. Confocal light microscopic studies also revealed abatement RJB-2. was responsible for less production reactive oxygen species (ROS) reducing oxidative damage caused by The lower percentage electrolytic leakage (EL) inoculated abatement. reported distribution various parts plant. owing intrinsic abilities promotion even high concentrations inhibit completely therefore large-scale cultivation phytostabilization