Biochar Modulates Methanogenesis through Electron Syntrophy of Microorganisms with Ethanol as a Substrate

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	Biochar Modulates Methanogenesis through Electron Syntrophy of Microorganisms with Ethanol as a Substrate
	Ding, Long-Jun; Zama, Eric Fru; Yuan, Hai-Yan; Liu, Pan-Pan; Hozzein, Wael N.; Zhu, Yong-Guan
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2018-11-06
卷号	52 期号:21 页码:12198-12207
ISSN号	0013-936X
文献子类	Article
英文摘要	Biochar has the potential to influence methanogenesis which is a key component of global carbon cycling. However, the mechanisms governing biochar's influence on methanogenesis is not well understood, especially its effects on interspecies relationships between methanogens and anaerobic bacteria (e.g., Geobacteraceae). To understand how different types of biochar influence methanogenesis, biochars derived from rice straw (RB), wood chips (WB), and manure (MB) were added to the methanogenic enrichment culture system of a paddy soil. Compared to the nonbiochar control, RB and MB additions accelerated methanogenesis remarkably, showing 10.7 and 12.3-folds higher methane production rate, respectively; while WB had little effect on methanogenesis. Using Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and electrochemical methods, RB and MB also had higher redox-active properties or charging and discharging capacities than WB, and the functional groups, mainly quinones, on the biochar surface played an important role in facilitating methanogenesis. Quantitative polymerase chain reaction results demonstrated that electronic syntrophy did exist between methanogens and Geobacteraceae. RB and MB stimulate methanogenesis by facilitating direct interspecies electron transfer between methanogens and Geobacteraceae. Our findings contribute to a better understanding of the effects of biochars from different feedstocks on methanogenesis and provide new evidence to the mechanisms of stimulating methanogenesis via biochar.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40478]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Ding, Long-Jun,Zama, Eric Fru,Yuan, Hai-Yan,et al. Biochar Modulates Methanogenesis through Electron Syntrophy of Microorganisms with Ethanol as a Substrate[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2018,52(21):12198-12207.
APA	Ding, Long-Jun,Zama, Eric Fru,Yuan, Hai-Yan,Liu, Pan-Pan,Hozzein, Wael N.,&Zhu, Yong-Guan.(2018).Biochar Modulates Methanogenesis through Electron Syntrophy of Microorganisms with Ethanol as a Substrate.ENVIRONMENTAL SCIENCE & TECHNOLOGY,52(21),12198-12207.
MLA	Ding, Long-Jun,et al."Biochar Modulates Methanogenesis through Electron Syntrophy of Microorganisms with Ethanol as a Substrate".ENVIRONMENTAL SCIENCE & TECHNOLOGY 52.21(2018):12198-12207.