Exploring the mechanisms by which reindeer droppings induce fen peat methane production

Identifying the Molecular Mechanisms by Which Synthetic Triterpenoids Induce Chondrogenesis

Metabolic and trophic interactions modulate methane production by Arctic peat microbiota in response to warming.

Arctic permafrost soils store large amounts of soil organic carbon (SOC) that could be released into the atmosphere as methane (CH4) in a future warmer climate. How warming affects the complex microbial network decomposing SOC is not understood. We studied CH4 production of Arctic peat soil microbiota in anoxic microcosms over a temperature gradient from 1 to 30 °C, combining metatranscriptomic...

Methane emissions in drained peat agro-ecosystems

Spatial and temporal variation of methane emissions in drained eutrophic peat agro-ecosystems: drainage ditches as emission hotspots A. P. Schrier-Uijl, E. M. Veenendaal, P. A. Leffelaar, J. C. van Huissteden, and F. Berendse Department of Nature Conservation and Plant Ecology, Wageningen University, Droevendaalse steeg 3a, 6708 PD Wageningen, The Netherlands Department of Plant Production Syst...

Correlation of methane production and functional gene transcriptional activity in a peat soil.

The transcription dynamics of subunit A of the key gene in methanogenesis (methyl coenzyme M reductase; mcrA) was studied to evaluate the relationship between process rate (methanogenesis) and gene transcription dynamics in a peat soil ecosystem. Soil methanogen process rates were determined during incubation of peat slurries at temperatures from 4 to 37 degrees C, and real-time quantitative PC...

Subsurface characterization of methane production and oxidation from a New Hampshire wetland.

We measured the carbon isotopic composition of pore water carbon dioxide from Sallie's Fen, a New Hampshire poor fen. The isotope profiles are used in combination with a one-dimensional diffusion-reaction model to calculate rates of methane production, oxidation and transport over an annual cycle. We show how the rates vary with depth over a seasonal cycle, with methane produced deeper during t...