Uncovering the Diversity and Activity of Methylotrophic Methanogens in Freshwater Wetland Soils.

ABSTRACT: Wetland soils are one of the largest natural contributors to the emission of methane, a potent greenhouse gas. Currently, microbial contributions to methane emissions from these systems emphasize the roles of acetoclastic and hydrogenotrophic methanogens, while less frequently considering methyl-group substrates (e.g., methanol and methylamines). Here, we integrated laboratory and field experiments to explore the potential for methylotrophic methanogenesis in Old Woman Creek (OWC), a temperate freshwater wetland located in Ohio, USA. We first demonstrated the capacity for methylotrophic methanogenesis in these soils using laboratory soil microcosms amended with trimethylamine. However, subsequent field porewater nuclear magnetic resonance (NMR) analyses to identify methanogenic substrates

SUBMITTER: Narrowe AB 

PROVIDER: S-EPMC6890927 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature