Pathways of methanogenesis in a fen soil
نویسندگان
چکیده
Fluxes and C isotopic composition of dissolved carbon and pathways of methanogenesis in a fen soil exposed to experimental drought K.-H. Knorr, B. Glaser, and C. Blodau Limnological Research Station and Department of Hydrology, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany Department of Soil Physics, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany Received: 27 February 2008 – Accepted: 27 February 2008 – Published: 2 April 2008 Correspondence to: K.-H. Knorr ([email protected]) Published by Copernicus Publications on behalf of the European Geosciences Union.
منابع مشابه
C isotopic composition of dissolved carbon and pathways of methanogenesis in a fen soil exposed to experimental drought
1 Limnological Research Station and Department of Hydrology, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany 2 Department of Soil Physics, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany Received: 27 February 2008 – Accepted: 27 February 2008 – Published: 2 April 2008 Correspondence to: K.-H. Knorr ([email protected]) Published by Copernicus ...
متن کاملPathways for methanogenesis and diversity of methanogenic archaea in three boreal peatland ecosystems.
The main objectives of this study were to uncover the pathways used for methanogenesis in three different boreal peatland ecosystems and to describe the methanogenic populations involved. The mesotrophic fen had the lowest proportion of CH4 produced from H2-CO2. The oligotrophic fen was the most hydrogenotrophic, followed by the ombrotrophic bog. Each site was characterized by a specific group ...
متن کاملCompeting formate- and carbon dioxide-utilizing prokaryotes in an anoxic methane-emitting fen soil.
Methanogenesis in wetlands is dependent on intermediary substrates derived from the degradation of biopolymers. Formate is one such substrate and is stimulatory to methanogenesis and acetogenesis in anoxic microcosms of soil from the fen Schlöppnerbrunnen. Formate dissimilation also yields CO(2) as a potential secondary substrate. The objective of this study was to resolve potential differences...
متن کاملMethanogenesis In Mclean Bog, An Acidic Peat Bog In Upstate New York: Stimulation By H2/CO2 In The Presence Of Rifampicin, Or By Low Concentrations Of Acetate
Acidic peat bog soils produce CH4 and although molecular bio-logical studies have demonstrated the presence of diverse methano-genic populations in them, few studies have sustained methano-genesis by adding the CH4 precursors H2/CO2 or acetate, and few indigenous methanogens have been cultured. McLean Bog is a small (ca. 70 m across), acidic (pH 3.4–4.3) Sphagnum-dominated bog in upstate New Yo...
متن کاملSeasonal Changes in Methanogenesis and Methanogenic Community in Three Peatlands, New York State
Fluctuating environmental conditions can promote diversity and control dominance in community composition. In addition to seasonal temperature and moisture changes, seasonal supply of metabolic substrates selects populations temporally. Here we demonstrate cascading effects in the supply of metabolic substrates on methanogenesis and community composition of anaerobic methanogenic archaea in thr...
متن کامل