Metabolism of Dibenzo-p-Dioxin and Chlorinated Dibenzo-p-Dioxin by a Gram-Positive Bacterium, Rhodococcus opacus SAO101

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概要

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• A dibenzo-p-dioxin-degrading bacterial strain, Rhodococcus opacus SAO101, was isolated from forest soil samples collected from the subtropical islands of Japan by enrichment of a mineral salt medium containing dibenzofuran as the sole carbon and energy source. The isolated bacterium could utilize dibenzo-p-dioxin as the sole carbon and energy source, and also many monocyclic aromatic compounds, such as toluene, phenol, and chlorobenzene, as well as bicyclic aromatic compounds, such as biphenyl, naphthalene, and dibenzothiophene. Furthermore, strain SAO101 has a high co-oxidative potential for chlorinated dibenzo-p-dioxin. Metabolite analysis of dibenzo-p-dioxin degradation by strain SAO101 revealed the formation of dihydrodiol, 2, 2', 3'-trihydroxybiphenyl ether, and a meta-cleavage compound of 2, 2', 3'-trihydroxybiphenyl ether, and the accumulation of dihydroxy compounds. On the basis of these results, the metabolic pathway of dibenzo-p-dioxin was proposed. This is the first report of the degradation of dibenzofurans/dibenzo-p-dioxins by a Rhodococcus species.

• 公益社団法人日本生物工学会の論文
• 2001-08-25

著者

• Kimura Nobutada

  Microbial And Genetic Resources Research Group Research Institute Of Biological Resources National I

• Urushigawa Yoshikuni

  Department Of Management Science And Engineering Faculty Of System Science And Technology Akita Pref

• URASHIGAWA YOSHIKUNI

  Department of Management Science and Engineering, Faculty of Systems Science and Technology, Akita P

• Urashigawa Yoshikuni

  Department Of Management Science And Engineering Faculty Of Systems Science And Technology Akita Pre

関連論文

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• Total RNA Concentration as an Index of Microbial Activity and Oxygen Supply in an Oxidation Ditch(Biochemical Engineering)
• Metabolism of Dibenzo-p-Dioxin and Chlorinated Dibenzo-p-Dioxin by a Gram-Positive Bacterium, Rhodococcus opacus SAO101
• Synthesis of Three New Azaparacyclophanes Containing Four Benzene Rings

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