Initial transformation step of dicamba by a sulfate-reducing consortium enriched from sediment of the Pearl River of China
作者： Ji-Guang Gu , Boping Han , Shunshan Duan
DOI: 10.1016/J.IBIOD.2008.05.001
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摘要: Abstract Dicamba is a readily detectable chemical in run-off and groundwater of agricultural areas. Biotransformation dicamba was investigated laboratory anaerobic microcosms incubated at two temperatures (15 25 °C) under sulfate-reducing condition using sediment from the Pearl River Southern China as source microorganisms. Initial results showed that transformed by 86% 120 days incubation 25 °C compared with sterile controls. In comparison, only 14 C-ring labeled dicamba-transforming consortium. Results confirmed consortium but no substantial amount CO 2 recovered, suggesting initial degradation an demethoxylation reaction removing o -methyl group forming 2-hydroxy-3,5-dichlorobenzoic acid. Our suggest quickly through demethoxylation, further transformation intermediate much slower environment.
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