Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
| Li, Cui1,2; Xue, Chen1,2; Ouyang, Weiwei1,2; Liu, Minghui1,2; Sun, Yingtao3,4; Liu, Hui1,2,5 | |
| Identification and synergetic mechanism of TCE, H2 and O2 metabolic microorganisms in the joint H2/O2 system | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| ISSN | 0048-9697 |
| 2023-06-25 | |
| Volume | 879Pages:9 |
| DOI | 10.1016/j.scitotenv.2023.163026 |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| Abstract | 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. |
| Keyword | Trichloroethene Hydrogen Oxygen Metabolic microbes Stable isotope probes |
| WOS ID | WOS:000991462400001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74232 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Liu, Hui |
| Affiliation | 1.China Univ Geosci, Sch Environm Studies, Hubei Key Lab Yangtze Catchment Environm Aquat Sci, Wuhan 430078, Hubei, Peoples R China 2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430078, Hubei, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.388 Lumo Rd, Wuhan 430074, Peoples R China |
| Recommended Citation 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. |
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