Co-occurrence of Methanosarcina mazei and Geobacteraceae in an iron (III)-reducing enrichment culture | |
Zheng, Shiling1,2; Zhang, Hongxia1,2,3; Li, Ying1,2,3; Zhang, Hua1; Wang, Oumei4; Zhang, Jun5; Liu, Fanghua1,2; Wang, OM (reprint author), Binzhou Med Univ, Key Lab Genet Hearing Disorders Shandong, 346 Guanhai Rd, Yantai 264003, Shandong, Peoples R China. ziou79@hotmail.com; fhliu@yic.ac.cn | |
发表期刊 | FRONTIERS IN MICROBIOLOGY |
ISSN | 1664-302X |
2015-09-08 | |
卷号 | 6页码:941 |
关键词 | Co-occurrence Methanosarcina Mazei Geobacteraceae Direct Interspecies Electron Transfer (Diet) Iron(Iii)-reducing Microorganisms |
DOI | 10.3389/fmicb.2015.00941 |
产权排序 | [Zheng, Shiling; Zhang, Hongxia; Li, Ying; Zhang, Hua; Liu, Fanghua] Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai, Peoples R China; [Zheng, Shiling; Zhang, Hongxia; Li, Ying; Liu, Fanghua] Chinese Acad Sci, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai Inst Coastal Zone Res, Yantai, Peoples R China; [Zhang, Hongxia; Li, Ying] Univ Chinese Acad Sci, Beijing, Peoples R China; [Wang, Oumei] Binzhou Med Univ, Key Lab Genet Hearing Disorders Shandong, Yantai 264003, Shandong, Peoples R China; [Zhang, Jun] Northwest Univ, Coll Life Sci, Xian, Peoples R China |
作者部门 | 海岸带生物学与生物资源利用所重点实验室 |
英文摘要 | Methanosaeta harundinacea and Methanosarcina barkeri, known as classic acetoclastic methanogens, are capable of directly accepting electrons from Geobacter metallireducens for the reduction of carbon dioxide to methane, having been revealed as direct interspecies electron transfer (DIET) in the laboratory co-cultures. However, whether their co occurrences are ubiquitous in the iron (Ill) reducing environments and the other species of acetoclastic methanogens such as Methanosarcina mazei are capable of DIET are still unknown. Instead of initiating the co-cultures with pure cultures, two-step cultivation was employed to selectively enrich iron (Ill) reducing microorganisms in a coastal gold mining river, Jiehe River, with rich iron content in the sediments. First, iron (III) reducers including Geobacteraceae were successfully enriched by 3-months successive culture on amorphous Fe(III) oxides as electron acceptor and acetate as electron donor. High throughput Illumina sequencing, terminal restriction fragment length polymorphism (T-RFLP) and clone library analysis based on 16S rRNA genes revealed that the enrichment cultures actively contained the bacteria belong to Geobacteraceae and Bacilli, exclusively dominated by the archaea belong to Methanosarcinaceae. Second, the enrichment cultures including methanogens and Geobacteraceae were transferred with ethanol as alternative electron donor. Remarkably, aggregates were successively formed in the enrichments after three transfers. The results revealed by RNA-based analysis demonstrate that the co-occurrence of Methanosarcina mazei and Geobacteraceae in an iron (Ill) reducing enrichment culture. Furthermore, the aggregates, as close physical contact, formed in the enrichment culture, indicate that DIET could be a possible option for interspecies electron transfer in the aggregates.; Methanosaeta harundinacea and Methanosarcina barkeri, known as classic acetoclastic methanogens, are capable of directly accepting electrons from Geobacter metallireducens for the reduction of carbon dioxide to methane, having been revealed as direct interspecies electron transfer (DIET) in the laboratory co-cultures. However, whether their co occurrences are ubiquitous in the iron (Ill) reducing environments and the other species of acetoclastic methanogens such as Methanosarcina mazei are capable of DIET are still unknown. Instead of initiating the co-cultures with pure cultures, two-step cultivation was employed to selectively enrich iron (Ill) reducing microorganisms in a coastal gold mining river, Jiehe River, with rich iron content in the sediments. First, iron (III) reducers including Geobacteraceae were successfully enriched by 3-months successive culture on amorphous Fe(III) oxides as electron acceptor and acetate as electron donor. High throughput Illumina sequencing, terminal restriction fragment length polymorphism (T-RFLP) and clone library analysis based on 16S rRNA genes revealed that the enrichment cultures actively contained the bacteria belong to Geobacteraceae and Bacilli, exclusively dominated by the archaea belong to Methanosarcinaceae. Second, the enrichment cultures including methanogens and Geobacteraceae were transferred with ethanol as alternative electron donor. Remarkably, aggregates were successively formed in the enrichments after three transfers. The results revealed by RNA-based analysis demonstrate that the co-occurrence of Methanosarcina mazei and Geobacteraceae in an iron (Ill) reducing enrichment culture. Furthermore, the aggregates, as close physical contact, formed in the enrichment culture, indicate that DIET could be a possible option for interspecies electron transfer in the aggregates. |
文章类型 | Article |
资助机构 | National Natural Science Foundation of China(41371257 ; Chinese Academy of Sciences(KZZD-EW-14 ; 41573071 ; XDA11020403) ; 41401285 ; 31300423) |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | INTERSPECIES ELECTRON-TRANSFER ; GRADIENT GEL-ELECTROPHORESIS ; SPORE-FORMING BACTERIUM ; RICE FIELD SOIL ; PADDY SOIL ; METHANE PRODUCTION ; FERRIC IRON ; REDUCING MICROORGANISMS ; ARCHAEAL COMMUNITY ; SP-NOV |
研究领域[WOS] | Microbiology |
WOS记录号 | WOS:000361013800001 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.yic.ac.cn/handle/133337/13806 |
专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
通讯作者 | Wang, OM (reprint author), Binzhou Med Univ, Key Lab Genet Hearing Disorders Shandong, 346 Guanhai Rd, Yantai 264003, Shandong, Peoples R China. ziou79@hotmail.com; fhliu@yic.ac.cn |
作者单位 | 1.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai, Peoples R China 2.Chinese Acad Sci, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai Inst Coastal Zone Res, Yantai, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Binzhou Med Univ, Key Lab Genet Hearing Disorders Shandong, Yantai 264003, Shandong, Peoples R China 5.Northwest Univ, Coll Life Sci, Xian, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Shiling,Zhang, Hongxia,Li, Ying,et al. Co-occurrence of Methanosarcina mazei and Geobacteraceae in an iron (III)-reducing enrichment culture[J]. FRONTIERS IN MICROBIOLOGY,2015,6:941. |
APA | Zheng, Shiling.,Zhang, Hongxia.,Li, Ying.,Zhang, Hua.,Wang, Oumei.,...&fhliu@yic.ac.cn.(2015).Co-occurrence of Methanosarcina mazei and Geobacteraceae in an iron (III)-reducing enrichment culture.FRONTIERS IN MICROBIOLOGY,6,941. |
MLA | Zheng, Shiling,et al."Co-occurrence of Methanosarcina mazei and Geobacteraceae in an iron (III)-reducing enrichment culture".FRONTIERS IN MICROBIOLOGY 6(2015):941. |
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