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The removal of butachlor from soil by wastewater-derived Rhodopseudomonas marshes |
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| Authors: | Pan Wu Liying Xie Jirong Li Weiguang Yang Ziqiao Han Xiaozhen Wu Wentao Mo Cheng Wen Yang Gao Tian Wan Ying Zhang |
| Affiliation: | 1. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi'an University of Technology, Shanxi, China School of Environment and Resources, Dalian Minzu University, Dalian, China School of Resources and Environment, Northeast Agricultural University, Harbin, China;2. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi'an University of Technology, Shanxi, China School of Environment and Resources, Dalian Minzu University, Dalian, China;3. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi'an University of Technology, Shanxi, China |
| Abstract: | Butachlor is a systemic selective pre-emergent herbicide most commonly used to control grasses and broadleaf weeds. Residual butachlor in soil can have harmful ecotoxological effects and remediation is, therefore, important. Effects of Rhodopseudomonas marshes in wastewater effluent on biorestoration of butachlor in soil were investigated. Over a time period of one day, butachlor induced EthB gene expression to synthesize cytochrome P450 monooxygenase which led to the successful bioremediation of the herbicide. Residual organics in wastewater effluent provided sufficient carbon sources for continued growth of R. marshes beyond one day. |
| Keywords: | butachlor effluent EthB gene Rhodopseudomonas marshes |