A potential contribution of a Fe(III)-rich red clay horizon to methane release: Biogenetic magnetite-mediated methanogenesis
Alternative Title;
Xiao, LL1; Wei, WC1; Luo, M3; Xu, HD1; Feng, DW1; Yu, JF4; Huang, JF3; Liu, FH1,2
Source PublicationCATENA
ISSN0341-8162
2019-10
Volume181Pages:UNSP 104081
Keywordin situ critical zone Red clay horizon Magnetite Methane release Direct interspecies electron transfer Methanogenesis
MOST Discipline CatalogueGeosciences, Multidisciplinary ; Soil Science ; Water Resources
DOI10.1016/j.catena.2019.104081
Contribution Rank

[Xiao, Leilei

; Wei, Wenchao; Xu, Hengduo; Feng, Dawei; Liu, Fanghua] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Liu, Fanghua] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China; [Luo, Min; Huang, Jiafang] Fujian Normal Univ, Minist Educ, Key Lab Humid Subtrop Ecogeog Proc, Fuzhou 350007, Fujian, Peoples R China; [Yu, Jiafeng] Dezhou Univ, Shandong Key Lab Biophys, Inst Biophys, Dezhou 253023, Peoples R China
Department海岸带生物学与生物资源保护实验室
Abstract

According to prior laboratory research evidence, the formation of a conductive secondary mineral to accelerate electron transfer is an important factor in methanogenesis. However, the promotion of methanogenesis by a secondary mineral is rarely found in the in situ terrestrial ecosystem. In this study, soil samples with a depth profile were collected from a wetland in the Yellow River Delta (YRD), in which a special red clay horizon (RCH) widely exists. By analysing the soil physicochemical properties and microbial diversity, we demonstrate that the RCH is distinguished from its upper and lower layers by increased iron oxides and a higher abundance and diversity of electrogenic bacteria and methanogens. Further experimental results demonstrate that the RCH soil presented the lowest level of iron reduction ability and the highest methane production rate. Meanwhile, the precipitation of magnetite appeared in the treatment with the RCH soil as an inoculum. In the third generation of the RCH enrichment, the iron reduction ability was further suppressed, and the methane production rate was increased. Accordingly, changes to the microbial community structure were observed, manifested as a marked increase in the abundance of bacteria with the capacity to release electrons, such as Thermincola, Rombotusia, and Shewanella, as well as Methanosarcina, an archaea known as an electron-accepting methanogen. This study suggests that the RCH benefits the syntrophy between electron-donating and electron-accepting partners with the assistance of biologically diagenetic magnetite. To our knowledge, this is the first exploration for the promotion of methanogenesis by a biogenic mineral in the in situ critical zone.

SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordINTERSPECIES ELECTRON-TRANSFER ; PADDY SOIL ; REDUCTION ; IRON ; FERRIHYDRITE ; TRANSFORMATION ; STIMULATION ; OXIDATION
WOS Research AreaGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000477686600013
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China [41703075, 41573071, 91751112] ; Natural Science Foundation of Shandong ProvinceNatural Science Foundation of Shandong Province [JQ201608, ZR2016DQ12, ZR2018MD011] ; Young Taishan Scholars Program [tsqn20161054] ; Shandong Provincial Key Laboratory of Biophysics
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/24852
Collection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
Corresponding AuthorXu, HD; Liu, FH
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China;
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China;
3.Fujian Normal Univ, Minist Educ, Key Lab Humid Subtrop Ecogeog Proc, Fuzhou 350007, Fujian, Peoples R China;
4.Dezhou Univ, Shandong Key Lab Biophys, Inst Biophys, Dezhou 253023, Peoples R China
Recommended Citation
GB/T 7714
Xiao, LL,Wei, WC,Luo, M,et al. A potential contribution of a Fe(III)-rich red clay horizon to methane release: Biogenetic magnetite-mediated methanogenesis[J]. CATENA,2019,181:UNSP 104081.
APA Xiao, LL.,Wei, WC.,Luo, M.,Xu, HD.,Feng, DW.,...&Liu, FH.(2019).A potential contribution of a Fe(III)-rich red clay horizon to methane release: Biogenetic magnetite-mediated methanogenesis.CATENA,181,UNSP 104081.
MLA Xiao, LL,et al."A potential contribution of a Fe(III)-rich red clay horizon to methane release: Biogenetic magnetite-mediated methanogenesis".CATENA 181(2019):UNSP 104081.
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