Vertical distribution of microbial community and metabolic pathway in a methanogenic propionate degradation bioreactor
文献类型：期刊论文
| 作者 | Li, Ying1 ; Sun, Yongming1,2; Yang, Gaixiu1; Hu, Keqin4; Lv, Pengmei1; Li, Lianhua1,3
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| 刊名 | BIORESOURCE TECHNOLOGY
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 245页码:1022-1029 |
| 关键词 | Anaerobic Digestion Propionate Degradation Microbial Community Metabolic Pathway |
| DOI | 10.1016/j.biortech.2017.09.028 |
| 文献子类 | Article |
| 英文摘要 | The methanogenic propionate degradation consortia were enriched in a propionate-fed semi-continuous bioreactor. The microbial community shift with depth, the microbial network and its correlation with metabolic pathway were also investigated. The results demonstrated that the maximum organic loading rate (OLR) of the reactor was 2.5 g propionic acid (HPr) L-1 d(-1) with approximately 1.20 LL-1 d(-1) of volumetric methane production (VMP). The organisms in the enrichment were spanning 36 bacterial phyla and 7 archaeal orders. Syntrophobacter, the main Hpr oxidizer in the digester, dominated bacteria with relative abundance changing from 63% to 37% with depth. The predominant methanogens shift from hydrogenotrophic Methanoculleus (similar to 60%) at the upper liquid layer to acetoclastic Methanothrix (similar to 51%) at the lower sediment layer in the bioreactor. These methanogens syntrophically support Syntrophobacter by degrading HPr catabolism by-products (H-2 and acetate). Other bacteria could scavenge anabolic products (carbohydrate and protein) presumably derived from detrital biomass produced by the HPr-degrading community. |
| WOS关键词 | OVERLOADED ANAEROBIC DIGESTERS ; ACID-DEGRADING BACTERIUM ; SOLE CARBON SOURCE ; 16S RIBOSOMAL-RNA ; GEN.-NOV. ; OXIDIZING BACTERIA ; UASB REACTOR ; WASTE-WATER ; BIOAUGMENTATION ; CULTIVATION |
| 语种 | 英语 |
| WOS记录号 | WOS:000412443500126 |
| 资助机构 | Ministry of Science and Technology of China(2015BAD21B03) ; Natural Science Foundation for research team of Guangdong Province(2016A030312007) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/15770]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, GuangZhou Inst Energy Convers, Lab Biomass Biochem Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Wuhan Kaidi Elect Power Engn Co Ltd, Wuhan 430073, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ying,Sun, Yongming,Yang, Gaixiu,et al. Vertical distribution of microbial community and metabolic pathway in a methanogenic propionate degradation bioreactor[J]. BIORESOURCE TECHNOLOGY,2017,245:1022-1029. |
| APA | Li, Ying,Sun, Yongming,Yang, Gaixiu,Hu, Keqin,Lv, Pengmei,&Li, Lianhua.(2017).Vertical distribution of microbial community and metabolic pathway in a methanogenic propionate degradation bioreactor.BIORESOURCE TECHNOLOGY,245,1022-1029. |
| MLA | Li, Ying,et al."Vertical distribution of microbial community and metabolic pathway in a methanogenic propionate degradation bioreactor".BIORESOURCE TECHNOLOGY 245(2017):1022-1029. |
入库方式： OAI收割
来源：广州能源研究所
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