Kiyohara H, Torigoe S, Kaida N, Asaki T, Iida T, Hayashi H, Takizawa N
Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, Japan.
J Bacteriol. 1994 Apr;176(8):2439-43. doi: 10.1128/jb.176.8.2439-2443.1994.
A 25-kb DNA SalI fragment cloned from the chromosomal DNA of Pseudomonas putida OUS82, which utilizes phenanthrene (Phn+) and naphthalene (Nah+), carried all of the genes necessary for upper naphthalene catabolism. Cosmid recombinant pIP7 complemented both the Nah- and Phn- defects of OUS8211 (Trp-Nah-Phn-Sal+[salicylate utilizing]Hna+[1-hydroxy-2-naphthoate utilizing]) and only the Phn- defect of OUS8212 (Trp-Nah-Phn-Sal-Hna+). The results indicate that strain OUS82 uses different pathways after o-hydroxycarboxylic aromatics in the catabolism of naphthalene and phenanthrene.
从恶臭假单胞菌OUS82染色体DNA中克隆出的一个25 kb的DNA SalI片段,该菌株能利用菲(Phn+)和萘(Nah+),它携带了萘上半部分分解代谢所需的所有基因。黏粒重组体pIP7弥补了OUS8211(色氨酸营养缺陷型、萘利用缺陷型、菲利用缺陷型、水杨酸盐利用型[Sal+]、1-羟基-2-萘甲酸盐利用型[Hna+])的Nah-和Phn-缺陷,以及OUS8212(色氨酸营养缺陷型、萘利用缺陷型、菲利用缺陷型、水杨酸盐利用缺陷型、1-羟基-2-萘甲酸盐利用型)的仅Phn-缺陷。结果表明,菌株OUS82在萘和菲的分解代谢中,在邻羟基羧酸芳烃之后使用不同的途径。