Degradation of Alpha-, Beta-, and Gamma-Hexachlorocyclohexane by a Soil Bacterium under Aerobic Conditions

Author:

Sahu Siddhartha K.1,Patnaik Kamala Kumari1,Sharmila Manikonda1,Sethunathan N.1

Affiliation:

1. Department of Botany, Ravenshaw College, Cuttack 753 003, and Laboratory of Soil Microbiology, Central Rice Research Institute, Cuttack 753 006, 2 India

Abstract

A Pseudomonas sp., isolated from sugarcane rhizosphere soil, readily metabolized not only alpha and gamma isomers of hexachlorocyclohexane, but also the thermodynamically more stable beta isomer, under aerobic conditions. Bacterial degradation of the three isomers led to the accumulation of a transitory metabolite and eventual release of covalently linked chlorine as chloride in stoichiometric amounts.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference15 articles.

1. Aerobic biomineralization of alpha-hexachlorocyclohexane in contaminated soil;Bachmann A.;Appl. Environ. Microbiol.,1988

2. Biodegradation of alpha- and beta-hexachlorocyclohexane in a soil slurry under different redox conditions;Bachmann A.;Appl. Environ. Microbiol.,1988

3. Determination of trace amounts of chlorine in naphtha;Bergmann J. G.;Anal. Chem.,1957

4. Buchanan R. E. and N. E. Gibbons (ed.). 1974. Bergey's manual of determinative bacteriology. The Williams & Wilkins Co. Baltimore.

5. Degradation and metabolization of lindane and other hexachlorocyclohexane isomers by anaerobic and aerobic soil microorganisms;Haider K.;Z. Naturforsch. Teil C,1979

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