マエダ　ミチヒサ   Maeda Michihisa   前田　理久    所属   明治大学  農学部    職種   専任教授
言語種別	英語
発行・発表の年月	1997/08
形態種別	学術雑誌
標題	Three of the seven bphC genes of Rhodococcus erythropolis TA421, isolated from termite ecosystem, are located on an indigenous plasmid associated with biphenyl degradation
執筆形態	共著(筆頭者)
掲載誌名	Applied and Environmertal Microbiology
巻・号・頁	63(8),pp.3282-3285
著者・共著者	S Kosono, M Maeda, F Fuji, H Arai and T Kudo
概要	Rhodococcus erythropolis TA421, a polychlorinated biphenyl and biphenyl degrader isolated from a termite ecosystem, has seven bphC genes expressing 2,3-dihydroxybiphenyl dioxygenase activity. R. erythropolis TA421 harbored a large and probably linear plasmid on which three (bphC2, bphC3, and bphC4) of the seven bphC genes were located. A non-biphenyl-degrading mutant, designated strain TA422, was obtained spontaneously from R. erythropolis TA421. TA422 lacked the plasmid, suggesting that the three bphC genes were involved in the degrdn. of biphenyl. Southern blot analyses showed that R. erythropolis TA421 and Rhodococcus globerulus P6 have a similar set of bphC genes and that the genes for biphenyl catabolism are located on plasmids of different sizes. These results indicated that the genes encoding the biphenyl catabolic pathway in Rhodococcus strains are borne on plasmids.