alexa Lindane degradation by cell-free extracts of Clostridium rectum.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Ohisa N, Yamaguchi M, Kurihara N

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Abstract For lindane degradation, a cell suspension of Clostridium rectum strain S-17 demands the addition of substrates such as leucine, alanine, pyruvate, a leucine-proline mixture, and molecular hydrogen. In the presence of leucine-proline mixture, lindane decomposed in parallel with isovaleric acid formation, and both lindane degradation and isovaleric acid formation were inhibited by monoiodoacetic acid, suggesting a close relation between lindane degradation and the Stickland reaction. Lindane was degraded by cell-free extracts of C. rectum in the presence of dithiothreitol (DTT). Radiogaschromatograms of n-hexane soluble metabolites from [14C] lindane showed the presence of monochlorobenzene and gamma-3,4,5,6-tetrachlorocyclohexene. Leucine, NADH, and NADPH were somewhat less active than DTT for lindane degradation in cell-free extracts. Reductive dechlorination seemed the major route of lindane degradation in cell-free extracts as well as in the intact cells of C. rectum.
This article was published in Arch Microbiol and referenced in Journal of Bioremediation & Biodegradation

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