A Three-Component Enzyme System Catalyzes the O Demethylation of the Herbicide Dicamba in Pseudomonas maltophilia DI-6

Author:

Wang X,Li B,Herman P L,Weeks D P

Abstract

An enzyme activity which converts dicamba (2-methoxy-3,6-dichlorobenzoic acid) to 3,6-dichlorosalicylic acid in vitro has been detected in cell lysates of Pseudomonas maltophilia DI-6. Phenyl-Sepharose column chromatography of a partially purified lysate resulted in the separation of this enzyme into three separate protein components tentatively identified as an oxygenase, a ferredoxin, and a reductase. The activity of dicamba O-demethylase was dependent on oxygen and required NADH and Mg(sup2+).

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference21 articles.

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