Publication: Biodegradation of 3-chlorobenzoate by Pseudomonas putida 10.2
Issued Date
1996-01-01
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ISSN
09593993
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2-s2.0-0030477448
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Mahidol University
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SCOPUS
Bibliographic Citation
World Journal of Microbiology and Biotechnology. Vol.12, No.6 (1996), 607-614
Suggested Citation
W. Chobchuenchom, S. Mongkolsuk, A. Bhumiratana Biodegradation of 3-chlorobenzoate by Pseudomonas putida 10.2. World Journal of Microbiology and Biotechnology. Vol.12, No.6 (1996), 607-614. doi:10.1007/BF00327723 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/17558
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Title
Biodegradation of 3-chlorobenzoate by Pseudomonas putida 10.2
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Abstract
Pseudomonas putida 10.2, a 3-chlorobenzoate (3CBa)-degrading bacterium, was isolated from a soil sample obtained from an agricultural area in Chiang Mai, Thailand. This bacterium could degrade 2 mM 3CBa very rapidly with the concomitant formation of chloride ion when grown in mineral salt-yeast extract medium. The presence of glucose, lactose and pyruvate in the medium reduced the capability of this bacterium to degrade 3CBa. Metabolites such as 3-chlorocatechol (3CC), catechol and cis,cis-muconic acid (muconate) could be detected in the growth medium or in cell suspensions when 3CBa was used as the substrate. Furthermore, when crude enzyme extract prepared from 3CBa- grown P. putida 10.2 was incubated with 3CC, catechol and muconate could be detected in the reaction mixtures. Thus, the biodegradation pathway of 3CBa by P. putida 10.2 was proposed to involve transformation of 3CBa to 3CC. The dehalogenation step is believed to involve removal of chloride from 3CC to form catechol, which is subsequently converted to muconate.