Aerobic Microbial Transformation of Fluorinated Liquid Crystal Monomer: New Pathways and Mechanism
文献类型：期刊论文
| 作者 | Zhu, Xifen1; Yu, Yuanyuan1; Meng, Weikun2; Huang, Jiahui1; Su, Guanyong2; Zhong, Yin3; Yu, Xiaolong1; Sun, Jianteng1; Jin, Ling4,5; Peng, Ping'an3 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 58期号:1页码:510-521 |
| 关键词 | fluorinated LCMs microbial defluorination functional genes functional bacteria |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.3c04256 |
| 英文摘要 | Fluorinated liquid crystal monomers (FLCMs) have been suggested as emerging contaminants, raising global concern due to their frequent occurrence, potential toxic effects, and endurance capacity in the environment. However, the environmental fate of the FLCMs remains unknown. To fill this knowledge gap, we investigated the aerobic microbial transformation mechanisms of an important FLCM, 4-[difluoro(3,4,5-trifluorophenoxy)methyl]-3, 5-difluoro-4'-propylbiphenyl (DTMDPB), using an enrichment culture termed as BG1. Our findings revealed that 67.5 +/- 2.1% of the initially added DTMDPB was transformed in 10 days under optimal conditions. A total of 14 microbial transformation products obtained due to a series of reactions (e.g., reductive defluorination, ether bond cleavage, demethylation, oxidative hydroxylation and aromatic ring opening, sulfonation, glucuronidation, O-methylation, and thiolation) were identified. Consortium BG1 harbored essential genes that could transform DTMDPB, such as dehalogenation-related genes [e.g., glutathione S-transferase gene (GST), 2-haloacid dehalogenase gene (2-HAD), nrdB, nuoC, and nuoD]; hydroxylating-related genes hcaC, ubiH, and COQ7; aromatic ring opening-related genes ligB and catE; and methyltransferase genes ubiE and ubiG. Two DTMDPB-degrading strains were isolated, which are affiliated with the genus Sphingopyxis and Agromyces. This study provides a novel insight into the microbial transformation of FLCMs. The findings of this study have important implications for the development of bioremediation strategies aimed at addressing sites contaminated with FLCMs. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001139433400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/76119]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Sun, Jianteng |
| 作者单位 | 1.Guangdong Univ Petrochem Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Petrochem Pollut Proc & Con, Maoming 525000, Guangdong, Peoples R China 2.Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Jiangsu Key Lab Chem Pollut Control & Resources Re, Nanjing 210094, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong 999077, Peoples R China 5.Hong Kong Polytech Univ, Dept Hlth Technol & Informat, Kowloon, Hong Kong 999077, Peoples R China 6.Zhejiang Univ, Dept Environm Sci, Hangzhou 310058, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Xifen,Yu, Yuanyuan,Meng, Weikun,et al. Aerobic Microbial Transformation of Fluorinated Liquid Crystal Monomer: New Pathways and Mechanism[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2023,58(1):510-521. |
| APA | Zhu, Xifen.,Yu, Yuanyuan.,Meng, Weikun.,Huang, Jiahui.,Su, Guanyong.,...&Zhu, Lizhong.(2023).Aerobic Microbial Transformation of Fluorinated Liquid Crystal Monomer: New Pathways and Mechanism.ENVIRONMENTAL SCIENCE & TECHNOLOGY,58(1),510-521. |
| MLA | Zhu, Xifen,et al."Aerobic Microbial Transformation of Fluorinated Liquid Crystal Monomer: New Pathways and Mechanism".ENVIRONMENTAL SCIENCE & TECHNOLOGY 58.1(2023):510-521. |
入库方式： OAI收割
来源：广州地球化学研究所
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