PMID- 36601846 OWN - NLM STAT- MEDLINE DCOM- 20230106 LR - 20230111 IS - 1001-9332 (Print) IS - 1001-9332 (Linking) VI - 33 IP - 12 DP - 2022 Dec TI - [Degradation characteristics of 2,4,6-trichlorophenol by the anaerobic consortium XH-1]. PG - 3395-3402 LID - 10.13287/j.1001-9332.202212.030 [doi] AB - Organic pollutant 2,4,6-trichlorophenol (2,4,6-TCP) is commonly found in anaerobic environments such as sediments and groundwater aquifers. To investigate the ability of the anaerobic consortium XH-1 to degrade 2,4,6-TCP, we established anaerobic incubations using 2,4,6-TCP as the substrate and inoculated the incubations with XH-1. Additional subcultures were established by amending with intermediate product 4-chlorophenol (4-CP) or phenol as the substrate. The transformation products of 2,4,6-TCP were analyzed and determined using high-performance liquid chromatography (HPLC). Microbial community structure and key microbial groups involved in the degradation of 2,4,6-TCP were analyzed based on 16S rRNA gene high-throughput sequencing. The results showed that the initial 122 mumol.L(-1) 2,4,6-TCP was completely transformed after a 80-day incubation at a rate of 0.15 mumol.d(-1). 2,4-dichlorophenol (2,4-DCP), 4-CP and phenol were identified as the intermediate products. All intermediate products generated from 2,4,6-TCP transformation were completely degraded after being incubated for 325 days. The main microbial groups responsible for the reductive dechlorination of 2,4,6-TCP might be the organohalide respiring Dehalobacter and Dehalococcoides. The subsequent reductive dechlorination of 4-CP to phenol was likely driven by Dehalococcoides. The cooperation between the organohalide respiring bacteria, Syntrophorhabdus and methanogens (e.g. Methanosaeta and Methanofolis) was responsible for the complete degradation of 2,4,6-TCP. FAU - Sun, Bai-Hui AU - Sun BH AD - Key Laboratory of Ecological Restoration of Regional Polluted Environment, Ministry of Education, Shenyang University, Shenyang 110044, China. AD - Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. FAU - Song, Xue-Ying AU - Song XY AD - Key Laboratory of Ecological Restoration of Regional Polluted Environment, Ministry of Education, Shenyang University, Shenyang 110044, China. FAU - Yan, Jun AU - Yan J AD - Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. FAU - Yang, Yi AU - Yang Y AD - Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. FAU - Lyu, Yan AU - Lyu Y AD - Gansu Institute of Science and Technology Information, Lanzhou 730099, China. FAU - Wang, Jing-Jing AU - Wang JJ AD - Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. FAU - Song, Yu-Fang AU - Song YF AD - Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. FAU - Li, Xiu-Ying AU - Li XY AD - Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. LA - chi PT - English Abstract PT - Journal Article TT - 厌氧微生物菌群XH-1对2,4,6-三氯苯酚的降解特性. PL - China TA - Ying Yong Sheng Tai Xue Bao JT - Ying yong sheng tai xue bao = The journal of applied ecology JID - 9425159 RN - MHS8C5BAUZ (2,4,6-trichlorophenol) RN - 0 (RNA, Ribosomal, 16S) RN - 0 (Chlorophenols) RN - 0 (Phenols) RN - 339NCG44TV (Phenol) SB - IM MH - Anaerobiosis MH - RNA, Ribosomal, 16S/genetics MH - *Chlorophenols/chemistry/metabolism MH - Phenols/metabolism MH - Phenol MH - Biodegradation, Environmental OTO - NOTNLM OT - anaerobic biodegradation OT - chlorophenol OT - enrichment cultivation OT - reductive dechlorination EDAT- 2023/01/06 06:00 MHDA- 2023/01/07 06:00 CRDT- 2023/01/05 04:14 PHST- 2023/01/05 04:14 [entrez] PHST- 2023/01/06 06:00 [pubmed] PHST- 2023/01/07 06:00 [medline] AID - 10.13287/j.1001-9332.202212.030 [doi] PST - ppublish SO - Ying Yong Sheng Tai Xue Bao. 2022 Dec;33(12):3395-3402. doi: 10.13287/j.1001-9332.202212.030.