Degradation of the chloroacetamide herbicide butachlor by Catellibacterium caeni sp. nov DCA-1T

摘要: Abstract The chloroacetamide herbicide butachlor is a widely used that has caused environmental pollution in many areas. degradation mechanism of and bioremediation contaminated-sites by bioaugmentation great concern. In this study, the novel strain Catellibacterium caeni sp. nov DCA-1T was found to degrade 81.2% 50 mg l−1 84 h, efficiently relatively broad range temperatures from 15 35 °C initial pH values 6.0 9.0. Five metabolites produced during were identified based on gas chromatography–mass spectrometry, different pathway proposed. removal three soils also studied. inoculation cells significantly accelerated both sterile non-sterile soils, with 57.2%–90.4% 50 mg kg−1 removed 5 days compared 5.4%–36% controls. rate red soil (pH 4.8) inoculated lower than fluvo-aquic 6.3) high sandy 8.2), showing type affected degradation. This study highlights an important potential use for cleanup herbicides presents pure culture.