Results 71 to 80 of about 132,731 (235)

Sulfur and Methane-Oxidizing Microbial Community in a Terrestrial Mud Volcano Revealed by Metagenomics

Microorganisms, 2020
Mud volcanoes are prominent geological structures where fluids and gases from the deep subsurface are discharged along a fracture network in tectonically active regions.
Andrey V. Mardanov, Vitaly V. Kadnikov, Alexey V. Beletsky, Nikolai V. Ravin   +3 more
doaj   +1 more source

Oxidation and emission of methane in a monomictic lake (Rotsee, Switzerland) [PDF]

, 2018
The build-up of methane in the hypolimnion of the eutrophic Lake Rotsee (Lucerne, Switzerland) was monitored over a full year. Sources and sinks of methane in the water column were characterized by measuring concentrations and carbon isotopic composition.
Diem, T., Durisch-Kaiser, E., Lucas, F., Müller, B., Scheidegger, O., Schubert, C., Stierli, R., Vazquez, F.   +7 more
core  

Novel Methanotrophs of the Family Methylococcaceae from Different Geographical Regions and Habitats [PDF]

, 2015
Terrestrial methane seeps and rice paddy fields are important ecosystems in the methane cycle. Methanotrophic bacteria in these ecosystems play a key role in reducing methane emission into the atmosphere.
Birkeland, Nils-Kåre, Bodrossy, Levente, Islam, Tajul, Larsen, Øivind, Murrell, J., Panosyan, Hovik, Torsvik, Vigdis, Øvreås, Lise   +7 more
core   +2 more sources

Investigations of Aerobic Methane Oxidation in Two Marine Seep Environments: Part 1—Chemical Kinetics

, 2019
Microbial aerobic oxidation is known to be a significant sink of marine methane (CH4), contributing to the relatively minor atmospheric release of this greenhouse gas over vast stretches of the ocean.
E. Chan, A. Shiller, D. Joung, E. Arrington, D. Valentine, M. Redmond, J. Breier, S. Socolofsky, J. Kessler   +8 more
semanticscholar   +1 more source

Investigations of Aerobic Methane Oxidation in Two Marine Seep Environments: Part 2—Isotopic Kinetics

Journal of Geophysical Research: Oceans, 2019
During aerobic oxidation of methane (CH4) in seawater, a process whichmitigates atmospheric emissions, the C‐isotopologue reacts with a slightly greater rate constant than the C‐isotopologue, leaving the residual CH4 isotopically fractionated.
E. Chan, A. Shiller, D. Joung, E. Arrington, D. Valentine, M. Redmond, J. Breier, S. Socolofsky, J. Kessler   +8 more
semanticscholar   +1 more source

Waterfalls enhance regional methane emissions by enabling dissolved methane to bypass microbial oxidation

Communications Earth & Environment
River waters are significant sources of atmospheric methane whose local emissions increase with river slope and turbulence. However, when integrated regionally, the amount of dissolved methane released to the atmosphere is uninfluenced by local changes ...
Rebecca L. Rust, Annastasia Frizzell, John D. Kessler   +2 more
doaj   +1 more source

Diversity, Methane Oxidation Activity, and Metabolic Potential of Microbial Communities in Terrestrial Mud Volcanos of the Taman Peninsula

Microorganisms
Microbial communities of terrestrial mud volcanoes are involved in aerobic and anaerobic methane oxidation, but the biological mechanisms of these processes are still understudied.
Alexander I. Slobodkin, Igor I. Rusanov, Galina B. Slobodkina, Aleksandra R. Stroeva, Nikolay A. Chernyh, Nikolai V. Pimenov, Alexander Y. Merkel   +6 more
doaj   +1 more source

Nitrous oxide act as an alternative electron acceptor for microbial methane oxidation in oxygen-deficient microcosms

Geoderma
Submerged paddy is a hotspot of nitrous oxide (N2O) and methane (CH4) emission, which is typically considered electron donor and acceptor for microbes, respectively.
Fengqin Liu, Yu Zhang, Mingting Xie, Zhiliang Yuan, Zhongjun Jia, Yupeng Zhang   +5 more
doaj   +1 more source

Effect of Ethanol on Microbial Community Structure and Function During Natural Attenuation of Benzene, Toluene, and \u3cem\u3eo\u3c/em\u3e-Xylene in a Sulfate-reducing Aquifer [PDF]

, 2008
Ethanol (EtOH) is a commonly used fuel oxygenate in reformulated gasoline and is an alternative fuel and fuel supplement. Effects of EtOH release on aquifer microbial ecology and geochemistry have not been well characterized in situ.
Chakraborty, Irina, de Sieyes, Nick, Einarson, Murray, Feris, Kevin, Hristova, Krassimira R., Mackay, Doug, Scow, Kate M.   +6 more
core   +1 more source

Limited Acute Influence of Aerobic Methane Oxidation on Ocean Carbon Dioxide and pH in Hudson Canyon, Northern U.S. Atlantic Margin

Journal of Geophysical Research: Biogeosciences, 2018
The ocean continental shelves host the largest global reservoir of methane (CH4). Despite the great extent of these CH4 reservoirs, much of the CH4 released into deep ocean environments appear to dissolve in seawater prior to atmospheric emission.
Fenix Garcia‐Tigreros, J. Kessler
semanticscholar   +1 more source