Viral and metabolic controls on high rates of microbial sulfur and carbon cycling in wetland ecosystems.

ABSTRACT:

Background

Microorganisms drive high rates of methanogenesis and carbon mineralization in wetland ecosystems. These signals are especially pronounced in the Prairie Pothole Region of North America, the tenth largest wetland ecosystem in the world. Sulfate reduction rates up to 22 μmol cm^-3 day^-1 have been measured in these wetland sediments, as well as methane fluxes up to 160 mg m^-2 h^-1-some of the highest emissions ever measured in North American wetlands. While pore waters from PPR wetlands are characterized by high concentrations of sulfur species and dissolved organic carbon, the constraints on microbial activity are poorly understood. Here, we utilized metagenomics to investigate candidate sulfate reducers and methanogens in this ec

SUBMITTER: Dalcin Martins P 

PROVIDER: S-EPMC6081815 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature