The Efficient PAE-Degrading Performance and Complete Genome Sequencing of Gordonia sp. LUNF6
文献类型： 外文期刊
作者： Fan, Shuanghu 1 ; Feng, Zihan 1 ; Xu, Meiting 1 ; Shi, Zhenxia 1 ; Zhang, Yufeng 1 ; Zhang, Peipei 1 ; Hou, Xiaoqiang 1 ;
作者机构： 1.Langfang Normal Univ, Coll Life Sci, Langfang 065000, Peoples R China
2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
3.Langfang Key Lab Food Nutr & Safety, Langfang 065000, Peoples R China
关键词：
期刊名称：PROCESSES （ 影响因子：2.8； 五年影响因子：3.1 ）
ISSN：
年卷期： 2025 年 13 卷 3 期
页码：
收录情况： SCI
摘要： Phthalic acid esters (PAEs) are mainly used as plasticizers and result in serious environmental contamination worldwide. Microbial biodegradation becomes an efficient strategy for PAE elimination. In the current study, the PAE-degrading strain Gordonia sp. LUNF6 was isolated from contaminated soil. Strain LUNF6 can efficiently degrade DBP in a wide range of temperatures, pH values, and salinity levels. This strain is also capable of degrading 11 types of PAEs and displays remediation potential in wastewater. The complete genome of strain LUNF6 was sequenced to determine its efficient degradation performance. Its genome comprises a chromosome (3,971,257 bp) and a plasmid (78,813 bp). After gene function annotation, the complete PAE degradation pathway was proposed. The gene of monoalkyl PAE hydrolase MphGd2 was cloned and heterologously expressed. The protein of MphGd2 was purified by infinity chromatography, and we hydrolyzed MBP to produce PA. These results reveal the molecular mechanism of PAE degradation by strain LUNF6, which will contribute to the application of strain LUNF6 and hydrolase MphGd2 in bioremediation.
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