Zheng, Shiling1,2; Li, Meng3; Liu, Yang3; Liu, Fanghua1,2,4
发表期刊WATER RESEARCH
ISSN0043-1354
2021-09-01
卷号202页码:11
关键词DesulfovibrioMethanobacteriumDirect interspecies electron transferMethanogenic aggregatesCoastal zones
DOI10.1016/j.watres.2021.117490
通讯作者Liu, Fanghua(fhliu@yic.ac.cn)
英文摘要Geobacter, as a typical electroactive microorganism, is the "engine" of interspecies electron transfer (IET) between microorganisms. However, it does not have a dominant position in all natural environments. It is not known what performs a similar function as Geobacter in coastal zones. Metagenomic and metatranscriptomic analysis revealed that Desulfovibrio and Methanobacterium species were the most abundant in electrochemically active aggregates. Metatranscriptomic analysis showed that Desulfovibrio species highly expressed genes for ethanol metabolism and extracellular electron transfer involving cytochromes, pili and flagella. Methanobacterium species in the aggregates also expressed genes for enzymes involved in reducing carbon dioxide to methane. Pure cultures demonstrated that the isolated Desulfovibrio sp. strain JY contributed to aggregate conductivity and directly transferred electrons to Methanothrix harundinacea, which is unable to use H2 or formate. Most importantly, further coculture studies indicated that Methanobacterium strain YSL might directly accept electrons from the Desulfovibrio strain JY for the reduction of carbon dioxide to methane in the aggregate. This finding suggested that the possibility of DIET by Desulfovibrio similar to Geobacter species in conductive methanogenic aggregates can not be excluded.
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences; National Natural Science Foundation of China; Key R&D Program of Guangdong Province; GDAS' Project of Science and Technology Development; Pearl River Talent Recruitment Program of Guangdong Province
收录类别SCI
语种英语
关键词[WOS]GEOBACTER-METALLIREDUCENS; ANAEROBIC-DIGESTION; GENETIC-ANALYSIS; SINGLE-CELL; REDUCTION; BIOFILMS; METHANOSAETA; HYDROGENASE; COMMUNITIES; FERREDOXIN
研究领域[WOS]Engineering; Environmental Sciences & Ecology; Water Resources
WOS记录号WOS:000691497500001
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/29719
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Liu, Fanghua作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China
3.Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Guangdong, Peoples R China
4.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Guangdong Key Lab Integrated Agroenvironm Pollut, Guangzhou 510650, Peoples R China
推荐引用方式
GB/T 7714Zheng, Shiling,Li, Meng,Liu, Yang,et al. Desulfovibrio feeding Methanobacterium with electrons in conductive methanogenic aggregates from coastal zones[J]. WATER RESEARCH,2021,202:11.
APAZheng, Shiling,Li, Meng,Liu, Yang,&Liu, Fanghua.(2021).Desulfovibrio feeding Methanobacterium with electrons in conductive methanogenic aggregates from coastal zones.WATER RESEARCH,202,11.
MLAZheng, Shiling,et al."Desulfovibrio feeding Methanobacterium with electrons in conductive methanogenic aggregates from coastal zones".WATER RESEARCH 202(2021):11.
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