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Applied and Environmental Microbiology, September 2001, p. 4342-4345, Vol. 67, No. 9
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.9.4342-4345.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Degradation of 3-Methylpyridine and 3-Ethylpyridine by Gordonia nitida LE31

Jay J. Lee,1 Sung-Keun Rhee,2 and Sung-Taik Lee1,*

Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea,1 and Institute of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901-85212

Received 7 March 2001/Accepted 30 May 2001

Cells of Gordonia nitida LE31 grown on 3-methylpyridine degraded 3-ethylpyridine without a lag time and vice versa. Cyclic intermediates were not detected, but formic acid was identified as a metabolite. Degradation of levulinic acid was induced in cells grown on 3-methylpyridine and 3-ethylpyridine. Levulinic aldehyde dehydrogenase and formamidase activities were higher in cells grown on 3-methylpyridine and 3-ethylpyridine than in cells grown on acetate. These data indicate that 3-methylpyridine and 3-ethylpyridine were degraded via a new pathway involving C-2-C-3 ring cleavage.

* Corresponding author. Mailing address: Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1 Kusong-Dong, Yusong-Gu, Taejon 305-701, Korea. Phone: 82-42-869-2617. Fax: 82-42-869-2610. E-mail: stlee{at}sorak.kaist.ac.kr.

Applied and Environmental Microbiology, September 2001, p. 4342-4345, Vol. 67, No. 9
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.9.4342-4345.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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Copyright © 2001 by the American Society for Microbiology. All rights reserved.