期刊
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
卷 58, 期 2, 页码 65-69出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2006.07.009
关键词
genetically engineered microorganism; carbofuran; methyl parathion; bioremediation
Genetically engineered microorganisms (GEMs) have shown potential for enhanced degradation of a range of substrates. In this study, a DNA fragment including the open reading frame of mpd (methyl parathion hydrolase encoding gene) and cognate regulator of a methyl parathion (MP)-degrading strain Pseudomonas putida DLL-1 was cloned by the shotgun method. The fragment was cloned into a broadhost vector pBBRIMCS-2 to produce a recombinant plasmid pBBR-mpd. CDS-pBBR-mpd, a GEM, was successfully constructed by transforming it into a carbofuran-degrading strain Sphingomonas sp. CDS-1, and it degraded both carbofuran and MP. CDS-pBBR-mpd maintained stable and high MP hydrolase activity (50.72 nmol min(-1) mu g(-1) protein, which was 6.57 times higher than that of P. putida strain DLL-1). and appears to be a promising GEM for environmental bioremediation. (c) 2006 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据