Identification and synergetic mechanism of TCE, H2 and O2 metabolic microorganisms in the joint H2/O2 system
文献类型：期刊论文
| 作者 | Li, Cui4,5; Xue, Chen4,5; Ouyang, Weiwei4,5; Liu, Minghui4,5; Sun, Yingtao1,2; Liu, Hui3,4,5 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-06-25 |
| 卷号 | 879页码:9 |
| 关键词 | Trichloroethene Hydrogen Oxygen Metabolic microbes Stable isotope probes |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.163026 |
| 英文摘要 | The sole H2 and O2 usually promote chlorinated hydrocarbons (CHCs) biotransformation by several mechanisms, in-cluding reductive dechlorination and aerobic oxidation. However, the mechanism of the CHCs transformation in joint H2 and O2 system (H2/O2 system) is still unclear. In this study, the degradation kinetics of trichloroethene (TCE) were investigated and DNA stable isotope probing (DNA-SIP) were used to explore the synergistic mechanism of functional microorganisms on TCE degradation under the condition of H2/O2 coexistence. In the H2/O2 microcosm, TCE was sig-nificantly removed by 13.00 mu M within 40 days, much higher than N2, H2 and O2 microcosms, and 1,1-DCE was de-tected as an intermediate. DNA-SIP technology identified three anaerobic TCE metabolizers, five aerobic TCE metabolizers, nine hydrogen-oxidizing bacteria (HOB), some TCE metabolizers utilizing limited O2, and some anaer-obic dechlorinating bacteria reductively using H2 to dechlorinate TCE. It is also confirmed for the first time that 3 OUTs belonging to Methyloversatilis and SH-PL14 can simultaneously utilize H2 and O2 as energy sources to grow and metabolize TCE or 1,1-DCE. HOB may provide carbon sources or electron acceptors or donors for TCE biotransfor-mation. These findings confirm the coexistence of anaerobic and aerobic TCE metabolizers and degraders, which syn-ergistically promoted the conversion of TCE in the joint H2/O2 system. Our results provide more information about the functional microbe resources and synergetic mechanisms for TCE degradation. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000991462400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74231]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Liu, Hui |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.388 Lumo Rd, Wuhan 430074, Peoples R China 4.China Univ Geosci, Sch Environm Studies, Hubei Key Lab Yangtze Catchment Environm Aquat Sci, Wuhan 430078, Hubei, Peoples R China 5.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430078, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Cui,Xue, Chen,Ouyang, Weiwei,et al. Identification and synergetic mechanism of TCE, H2 and O2 metabolic microorganisms in the joint H2/O2 system[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,879:9. |
| APA | Li, Cui,Xue, Chen,Ouyang, Weiwei,Liu, Minghui,Sun, Yingtao,&Liu, Hui.(2023).Identification and synergetic mechanism of TCE, H2 and O2 metabolic microorganisms in the joint H2/O2 system.SCIENCE OF THE TOTAL ENVIRONMENT,879,9. |
| MLA | Li, Cui,et al."Identification and synergetic mechanism of TCE, H2 and O2 metabolic microorganisms in the joint H2/O2 system".SCIENCE OF THE TOTAL ENVIRONMENT 879(2023):9. |
入库方式： OAI收割
来源：广州地球化学研究所
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