Methanogen Productivity and Microbial Community Composition Varies With Iron Oxide Mineralogy.

ABSTRACT: Quantifying the flux of methane from terrestrial environments remains challenging, owing to considerable spatial and temporal variability in emissions. Amongst a myriad of factors, variation in the composition of electron acceptors, including metal (oxyhydr)oxides, may impart controls on methane emission. The purpose of this research is to understand how iron (oxyhydr)oxide minerals with varied physicochemical properties influence microbial methane production and subsequent microbial community development. Incubation experiments, using lake sediment as an inoculum and acetate as a carbon source, were used to understand the influence of one poorly crystalline iron oxide mineral, ferrihydrite, and two well-crystalline minerals, hematite and goethite, on methane production. Iron speciation, h

SUBMITTER: Gadol HJ 

PROVIDER: S-EPMC8894893 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature