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2 results for “Stenotrophomonas acidaminiphila BJ1”
Data from: Biotransformation of chlorothalonil by strain Stenotrophomonas acidaminiphila BJ1 isolated from farmland soil
The chlorothalonil is a widely used fungicide while the contamination of soil and water environments by this chemical causes potential threats to the biodiversity. Given the metabolic potential of soil microorganisms, there is a need for developing microbiological approaches to degrade persistent compounds, such as chlorothalonil, in the contaminated sites. Here in this study, we isolated a bacterial strain (namely, BJ1) capable of degrading chlorothalonil from a chlorothalonil-contaminated farmland soil in the Shandong Province, China. Using 16S rDNA gene sequencing, morphological and biological characteristics, we identified the strain BJ1 as Stenotrophomonas acidaminiphila. The strain BJ1 utilizes chlorothalonil as a sole carbon source. At initial concentrations of 50, 100, 200, 300 mg l-1, it degraded 91.5%, 89.4%, 86.5 and 83.5% of chlorothalonil after 96 h of inoculation under optimum conditions (30 °C and pH 7.0), respectively. Two metabolites, methyl-2, 5, 6-trichloro-3-cyano-4-methoxy-benzoate and methyl-3- cyano-2, 4, 5, 6-tetrachlorobenzoate, were detected and identified based on HPLC-MS analysis, which suggests that the strain BJ1 metabolized chlorothalonil through the hydroxylation of chloro-group and hydration of cyano-group. The results of this study highlight the great potential for this bacterium to be used in chlorothalonil pollution remediation.
Data from: Biotransformation of chlorothalonil by strain Stenotrophomonas acidaminiphila BJ1 isolated from farmland soil
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