Magnetite production and transformation in the methanogenic consortia from coastal riverine sediments

doi:10.1007/s12275-017-7104-1

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	Magnetite production and transformation in the methanogenic consortia from coastal riverine sediments
	Zheng, SL ; Wang, BC ; Liu, FH; Wang, OM
发表期刊	JOURNAL OF MICROBIOLOGY
ISSN	1225-8873
	2017-11
卷号	55 期号:11 页码:862-870
关键词	coastal riverine sediments magnetite ferrous iron methane iron (III)-reducing bacteria methanogens
研究领域	Microbiology
DOI	10.1007/s12275-017-7104-1
产权排序	[Zheng, Shiling; Wang, Bingchen; Liu, Fanghua] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Peoples R China; [Wang, Bingchen] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Oumei] Binzhou Med Univ, Yantai 264003, Peoples R China
作者部门	海岸带生物学与生物资源保护实验室
英文摘要	Minerals that contain ferric iron, such as amorphous Fe(III) oxides (A), can inhibit methanogenesis by competitively accepting electrons. In contrast, ferric iron reduced products, such as magnetite (M), can function as electrical conductors to stimulate methanogenesis, however, the processes and effects of magnetite production and transformation in the methanogenic consortia are not yet known. Here we compare the effects on methanogenesis of amorphous Fe (III) oxides (A) and magnetite (M) with ethanol as the electron donor. RNA-based terminal restriction fragment length polymorphism with a clone library was used to analyse both bacterial and archaeal communities. Iron (III)-reducing bacteria including Geobacteraceae and methanogens such as Methanosarcina were enriched in iron oxide-supplemented enrichment cultures for two generations with ethanol as the electron donor. The enrichment cultures with A and non-Fe (N) dominated by the active bacteria belong to Veillonellaceae, and archaea belong to Methanoregulaceae and Methanobacteriaceae, Methanosarcinaceae (Methanosarcina mazei), respectively. While the enrichment cultures with M, dominated by the archaea belong to Methanosarcinaceae (Methanosarcina barkeri). The results also showed that methanogenesis was accelerated in the transferred cultures with ethanol as the electron donor during magnetite production from A reduction. Powder X-ray diffraction analysis indicated that magnetite was generated from microbial reduction of A and M was transformed into siderite and vivianite with ethanol as the electron donor. Our data showed the processes and effects of magnetite production and transformation in the methanogenic consortia, suggesting that significantly different effects of iron minerals on microbial methanogenesis in the iron-rich coastal riverine environment were present.
文章类型	Article
资助机构	National Natural Science Foundation of China [91751112] ; Key Research Project of Frontier Science [QYZDJ-SSW-DQC015] ; Natural Science Foundation of Shandong Province [ZR2016DQ12] ; Young Taishan Scholars Programme [tsqn 20161054] ; [41371257] ; [41573071]
收录类别	SCI
语种	英语
关键词[WOS]	coastal riverine sediments ; magnetite ; ferrous iron ; methane ; iron (III)-reducing bacteria ; methanogens
研究领域[WOS]	Microbiology
WOS记录号	WOS:000413913700004
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24354
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
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Binzhou Med Univ, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Zheng, SL,Wang, BC,Liu, FH,et al. Magnetite production and transformation in the methanogenic consortia from coastal riverine sediments[J]. JOURNAL OF MICROBIOLOGY,2017,55(11):862-870.
APA	Zheng, SL,Wang, BC,Liu, FH,&Wang, OM.(2017).Magnetite production and transformation in the methanogenic consortia from coastal riverine sediments.JOURNAL OF MICROBIOLOGY,55(11),862-870.
MLA	Zheng, SL,et al."Magnetite production and transformation in the methanogenic consortia from coastal riverine sediments".JOURNAL OF MICROBIOLOGY 55.11(2017):862-870.

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