Spectrum of the Reductive Dehalogenation Activity of <i>Desulfitobacterium frappieri</i> PCP-1

Abstract

ABSTRACT Desulfitobacterium frappieri PCP-1 was induced for ortho - and para -dechlorinating activities by different chlorophenols. Dehalogenation rates ranging from 25 to 1,158 nmol/min/mg of cell protein were observed according to the chlorophenol tested and the position of the chlorine removed. D. frappieri shows a broad substrate specificity; in addition to tetrachloroethylene and pentachloropyridine, strain PCP-1 can dehalogenate at ortho , meta , and para positions a large variety of aromatic molecules with substituted hydroxyl or amino groups. Reactions of O demethylation and reduction of nitro to amino substituents on aromatic molecules were also observed.