Results 31 to 40 of about 1,461 (167)

Methanotrophy across a natural permafrost thaw environment [PDF]

The ISME Journal, 2018
Abstract The fate of carbon sequestered in permafrost is a key concern for future global warming as this large carbon stock is rapidly becoming a net methane source due to widespread thaw. Methane release from permafrost is moderated by methanotrophs, which oxidise 20–60% of this methane before emission to the atmosphere.
Caitlin M Singleton, Carmody K McCalley, Ben J Woodcroft, Joel A Boyd, Paul N Evans, Suzanne B Hodgkins, Jeffrey P Chanton, Steve Frolking, Patrick M Crill, Scott R Saleska, Virginia I Rich, Gene W Tyson   +11 more
openaire   +5 more sources

Adapting Macroecology to Microbiology: Using Occupancy Modeling To Assess Functional Profiles across Metagenomes

mSystems, 2021
Metagenomic sequencing provides information on the metabolic capacities and taxonomic affiliations for members of a microbial community. When assessing metabolic functions in a community, missing genes in pathways can occur in two ways; the genes may ...
Angus S. Hilts, Manjot S. Hunjan, Laura A. Hug   +2 more
doaj   +1 more source

Carbon Isotope Chemostratigraphy Across the Permian-Triassic Boundary at Chaotian, China: Implications for the Global Methane Cycle in the Aftermath of the Extinction

Frontiers in Earth Science, 2021
During the end-Permian extinction, a substantial amount of methane (CH4) was likely released into the ocean-atmosphere system associated with the Siberian Traps volcanism, although fluctuations in the global CH4 cycle in the aftermath of the extinction ...
Masafumi Saitoh, Masafumi Saitoh, Masafumi Saitoh, Yukio Isozaki   +3 more
doaj   +1 more source

Redox Zone and Trophic State as Drivers of Methane-Oxidizing Bacterial Abundance and Community Structure in Lake Sediments

Frontiers in Environmental Science, 2022
Eutrophication is expected to increase methane production in freshwater sediments worldwide over the coming decades. Methane-oxidizing bacteria (MOB) consume a significant fraction of this sedimentary methane, but the factors that control their ...
Sigrid van Grinsven, Dimitri V. Meier, Anja Michel, Xingguo Han, Carsten J. Schubert, Carsten J. Schubert, Mark A. Lever   +6 more
doaj   +1 more source

A scalable model for methane consumption in arctic mineral soils

Geophysical Research Letters, 2016
Recent field studies have documented a surprisingly strong and consistent methane sink in arctic mineral soils, thought to be due to high‐affinity methanotrophy.
Youmi Oh, Brandon Stackhouse, Maggie C. Y. Lau, Xiangtao Xu, Anna T. Trugman, Jonathan Moch, Tullis C. Onstott, Christian J. Jørgensen, Ludovica D'Imperio, Bo Elberling, Craig A. Emmerton, Vincent L. St. Louis, David Medvigy   +12 more
doaj   +1 more source

Diverse electron sources support denitrification under hypoxia in the obligate methanotroph Methylomicrobium album strain BG8

Frontiers in Microbiology, 2015
Aerobic methane-oxidizing bacteria are a diverse group of microorganisms that are ubiquitous in natural environments. Along with anaerobic methane-oxidizing bacteria and archaea, aerobic methanotrophs are critical for attenuating emission of methane to ...
K. Dimitri eKits, Dustin J Campbell, Albert eRemus Rosana, Lisa Y Stein   +3 more
doaj   +1 more source

Methanotrophy induces nitrogen fixation during peatland development [PDF]

Proceedings of the National Academy of Sciences, 2013
SignificanceIn peatlands, the external sources of nitrogen are mainly atmospheric, but the atmospheric nitrogen deposition alone cannot explain the long-term annual nitrogen accumulation rates to these ecosystems. Because of methodological problems, methane-induced fixation of atmospheric dinitrogen gas has been previously overlooked as an additional ...
Tiirola Marja, Fritze Hannu, Merilä Päivi, Tuittila Eeva-Stiina, Tuittila Eeva-Stiina, Larmola Tuula, Leppänen Sanna   +6 more
openaire   +4 more sources

Microbial Ecology of Methanotrophy in Streams Along a Gradient of CH4 Availability [PDF]

Frontiers in Microbiology, 2020
Despite the recognition of streams and rivers as sources of methane (CH4) to the atmosphere, the role of CH4 oxidation (MOX) in these ecosystems remains poorly understood to date. Here, we measured the kinetics of MOX in stream sediments of 14 sites to resolve the ecophysiology of CH4 oxidizing bacteria (MOB) communities.
Bagnoud A, Pramateftaki P, Bogard MJ, Battin TJ, Peter H   +4 more
openaire   +4 more sources

Isotopic and Chemical Assessment of the Dynamics of Methane Sources and Microbial Cycling during Early Development of an Oil Sands Pit Lake

Microorganisms, 2021
Water-capped tailings technology (WCTT) is a key component of the reclamation strategies in the Athabasca oil sands region (AOSR) of northeastern Alberta, Canada. The release of microbial methane from tailings emplaced within oil sands pit lakes, and its
Greg F. Slater, Corey A. Goad, Matthew B. J. Lindsay, Kevin G. Mumford, Tara E. Colenbrander Nelson, Allyson L. Brady, Gerdhard L. Jessen, Lesley A. Warren   +7 more
doaj   +1 more source

Mangrove Methane Biogeochemistry in the Indian Sundarbans: A Proposed Budget

Frontiers in Marine Science, 2017
Biogeochemical cycling of CH4 was investigated at Lothian Island, one of the relatively pristine islands of Indian Sundarbans and its adjacent Saptamukhi estuary, during June 2010 to December 2012.
Manab K. Dutta, Manab K. Dutta, Thomas S. Bianchi, Sandip K. Mukhopadhyay   +3 more
doaj   +1 more source