Degradation of biphenyl by a Micrococcus species |
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Authors: | Basavaraj G Bevinakatti Harichandra Z Ninnekar |
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Institution: | (1) Biochemistry Division, Department of Chemistry, Karnatak University, 580003 Dharwad, India |
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Abstract: | Summary A bacterium capable of utilizing biphenyl as the sole source of carbon was isolated from soil and identified as a Micrococcus species. The organism also utilized 4-chlorobiphenyl and several other aromatic compounds as growth substrates. 2,3-Dihydroxybiphenyl and benzoic acid were identified as intermediates by physico-chemical methods. The bacterium degraded biphenyl to 2,3-dihydroxybiphenyl followed by its meta-ring cleavage to yield 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoic acid, which was then hydrolysed to give benzoic acid. Benzoate was further metabolised via a catechol meta-cleavage pathway by a Micrococcus sp.Correspondence to: H. Z. Ninnekar |
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