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Gründger, F.* ; Jimenez, N.* ; Thielemann, T.* ; Straaten, N.* ; Lüders, T. ; Richnow, H.-H.* ; Krüger, M.*

Microbial methane formation in deep aquifers of a coal-bearing sedimentary basin, Germany.

Front. Microbiol. 6:200 (2015)
Verlagsversion DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
Coal-bearing sediments are major reservoirs of organic matter potentially available for methanogenic subsurface microbial communities. In this study the specific microbial community inside lignite-bearing sedimentary basin in Germany and its contribution to methanogenic hydrocarbon degradation processes was investigated. The stable isotope signature of methane measured in groundwater and coal-rich sediment samples indicated methanogenic activity. Analysis of 16S rRNA gene sequences showed the presence of methanogenic Archaea, predominantly belonging to the orders Methanosarcinales and Methanomicrobiales, capable of acetoclastic or hydrogenotrophic methanogenesis. Furthermore, we identified fermenting, sulfate-, nitrate-, and metal-reducing, or acetogenic Bacteria clustering within the phyla Proteobacteria, complemented by members of the classes Actinobacteria, and Clostridia. The indigenous microbial communities found in the groundwater as well as in the coal-rich sediments are able to degrade coal-derived organic components and to produce methane as the final product. Lignite-bearing sediments may be an important nutrient and energy source influencing larger compartments via groundwater transport.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Cenozoic Sediments ; Coal ; Fluvial Deposits ; Methanogenesis ; Methanogenic Archaea ; Methanogenic Hydrocarbon Degradation ; Stable Isotope Fractionation; Real-time Pcr; Ribosomal-rna Sequences; Powder River-basin; Sp-nov.; Methylotrophic Methanogen; Petroleum Reservoir; Reducing Conditions; Natural Gases; Pure Cultures; Crude-oil
Sprache englisch
Veröffentlichungsjahr 2015
HGF-Berichtsjahr 2015
ISSN (print) / ISBN 1664-302X
e-ISSN 1664-302X
Zeitschrift Frontiers in Microbiology
Quellenangaben Band: 6, Heft: , Seiten: , Artikelnummer: 200 Supplement: ,
Verlag Frontiers
Verlagsort Lausanne
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Groundwater Ecology (IGOE)
POF Topic(s) 20403 - Sustainable Water Management
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504300-005
PubMed ID 25852663
DOI 10.3389/fmicb.2015.00200
WOS ID WOS:000352516700001
Scopus ID 84927134718
Erfassungsdatum 2015-04-05
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