کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5740391 | 1616297 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Degradation of three monochlorobenzoate isomers by different bacteria isolated from a contaminated soil
ترجمه فارسی عنوان
تجزیه سه ایزومر مونوکلروبنزوات توسط باکتری های مختلف جدا شده از خاک آلوده
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
علوم زیست محیطی (عمومی)
چکیده انگلیسی
Three monochlorobenzoate isomer-utilizing bacterial strains, Pseudomonas sp. 2-CBA, Pseudomonas sp. 3-CBA, and Hydrogenophaga sp. 4-CBA, were isolated from a haloaromatic-contaminated soil in a disused chemical factory in Nanjing, China. Compared to strain 3-CBA and strain 4-CBA, which could only utilize its corresponding monochlorobenzoate isomer (3-chlorobenzoate and 4-chlorobenzoate) as the sole carbon source for growth, strain 2-CBA could utilize both 2-chlorobenzoate and 3-chlorobenzoate for growth. The three monochlorobenzoate isomers were catabolized via three different dechlorination pathways in the three isolates, respectively. 3-Chlorobenzoate was initially catabolized by the benzoate 1,2-dioxygenase (BenABCD) in strain 3-CBA, whereas 2-chlorobenzoate was catabolized by the hybrid 2-halobenzoate 1,2-dioxygenase system in strain 2-CBA, which comprised of the terminal oxygenase component of 2-halobenzoate dioxygenase system (CbdAB) and the reductase component of benzoate 1,2-dioxygenase system (BenC). For 4-chlorobenzoate, it was catabolized via the classic hydrolytic dehalogenation pathway in strain 4-CBA. While, strain 4-CBA seemed to have a more compact gene cluster of fcbABC compared to previously reported strains. This study provides new insights into the catabolic diversity of structurally similar isomers in a contaminated niche.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Biodeterioration & Biodegradation - Volume 120, May 2017, Pages 192-202
Journal: International Biodeterioration & Biodegradation - Volume 120, May 2017, Pages 192-202
نویسندگان
Changfeng Xu, Xiaoxia Zang, Xing Hang, Xiaomei Liu, Hongxing Yang, Xiaowei Liu, Jiandong Jiang,