A5086084951- Climate change and permafrost
- Peatlands and Wetlands Ecology
- Methane Hydrates and Related Phenomena
- Microbial Community Ecology and Physiology
- Polar Research and Ecology
The Ohio State University
2022
Microbiomes shape ecosystems through functional profiles influenced by gene gains and losses. While culture-based experiments demonstrate that mobile genetic elements (MGEs) can mediate flux, quantitative field data remains scarce. Here we leverage large-scale soil meta-omic to develop apply analytics for studying MGEs. In our model permafrost-thaw ecosystem, Stordalen Mire, identify ~2.1 million MGE recombinases across 89 microbial phyla assess ecological distributions, functions impacted,...
Permafrost thaw in northern peatlands is likely to create a positive feedback climate change, as microbes transform soil carbon (C) into dioxide (CO2) or methane (CH4). While the microbiome's encoded C-processing potential changes with thaw, impact on substrate utilization and gas emissions less well characterized. We therefore examined microbial C-cycling dynamics from partially thawed Sphagnum-dominated bog fully sedge-dominated fen Stordalen Mire (68.35°N, 19.05°E), Sweden. profiled C...