Results 11 to 20 of about 8,463 (185)

Light-Dependent Aerobic Methane Oxidation Reduces Methane Emissions from Seasonally Stratified Lakes. [PDF]

PLoS ONE, 2015
Lakes are a natural source of methane to the atmosphere and contribute significantly to total emissions compared to the oceans. Controls on methane emissions from lake surfaces, particularly biotic processes within anoxic hypolimnia, are only partially ...
Kirsten Oswald, Jana Milucka, Andreas Brand, Sten Littmann, Bernhard Wehrli, Marcel M M Kuypers, Carsten J Schubert   +6 more
doaj   +12 more sources

Large freshwater phages with the potential to augment aerobic methane oxidation. [PDF]

Nat Microbiol, 2020
Abstract There is growing evidence that phages with unusually large genomes are common across various microbiomes, but little is known about their genetic inventories or potential ecosystem impacts. In the present study, we reconstructed large phage genomes from freshwater lakes known to contain bacteria that ...
Chen LX, Méheust R, Crits-Christoph A, McMahon KD, Nelson TC, Slater GF, Warren LA, Banfield JF.   +7 more
europepmc   +8 more sources

Aerobic methane oxidation under copper scarcity in a stratified lake. [PDF]

Sci Rep, 2019
AbstractAerobic methane-oxidizing bacteria (MOB) substantially reduce methane fluxes from freshwater sediments to the atmosphere. Their metalloenzyme methane monooxygenase (MMO) catalyses the first oxidation step converting methane to methanol. Its most prevalent form is the copper-dependent particulate pMMO, however, some MOB are also able to express ...
Guggenheim C, Brand A, Bürgmann H, Sigg L, Wehrli B.   +4 more
europepmc   +6 more sources

Significance of pelagic aerobic methane oxidation in the methane and carbon budget of a tropical reservoir [PDF]

Journal of Geophysical Research, 2007
The Petit Saut Reservoir (French Guiana), flooded in 1994, has an anoxic and methane‐rich (>400 μmol.L−1) hypolimnion and an oxycline located at around 5 meters depth. Waters passing through the turbines are enriched in CH4, which partly degasses downstream of the dam.
Frédéric Guerin
exaly   +3 more sources

Aerobic oxidation of methane significantly reduces global diffusive methane emissions from shallow marine waters

Nature Communications, 2022
Aerobic oxidation is a biological sink of methane that can reduce oceanic emissions to the atmosphere. This study estimates that half of methane from total loss, amounting to 1.8 ± 2.7 Tg, is oxidized annually in global 0–50 m near-shore ...
Shi-Hai Mao, Hong-Hai Zhang, Guang-Chao Zhuang, Xiao-Jun Li, Qiao Liu, Zhen Zhou, Wei-Lei Wang, Chun-Yang Li, Ke-Yu Lu, Xi-Ting Liu, Andrew Montgomery, Samantha B. Joye, Yu-Zhong Zhang, Gui-Peng Yang   +13 more
doaj   +3 more sources

Pushing the upper temperature limit of methanotrophy in continental hydrothermal ecosystems, active biological methane oxidation in hot springs of Yellowstone National Park [PDF]

Frontiers in Microbiology
Methane oxidation in terrestrial geothermal systems is an understudied process contributing to carbon cycling in extreme environments. We combined geochemical analyses, 16S rRNA gene amplicon sequencing, shotgun metagenome sequencing, and 14CH4 microcosm
Alta E. G. Howells, Alta E. G. Howells, Michelle Santana, Ellen M. Cook, Brianna Orrill, Grayson Boyer, R. Vincent Debes, Kristopher M. Fecteau, Kristopher M. Fecteau, Daniel R. Colman, Eric S. Boyd, Everett L. Shock, Everett L. Shock   +12 more
doaj   +2 more sources

Linking microbes to in situ methane oxidation rates in a eutrophic freshwater lake [PDF]

Frontiers in Microbiology
IntroductionAerobic methanotrophs and non-methanotrophic methylotrophs drive methane cycling in oxic freshwater lakes. Most knowledge about biological aerobic methane oxidation (MOx) comes from ex situ rate experiments, laboratory cultures, and static ...
Jennifer A. Baily, Jennifer A. Baily, Zachary W. Hudspeth, Joshua L. Morningstar, Howard P. Mendlovitz, Christopher S. Martens, Karen G. Lloyd, Karen G. Lloyd   +7 more
doaj   +2 more sources

Copper acquisition from mineral promotes aerobic methane oxidation

Communications Earth & Environment
Aerobic microbial methane oxidation plays an important role in the global carbon cycle. This process is catalyzed by enzyme methane monooxygenase. Particulate methane monooxygenase requires copper as a cofactor.
Jinglong Hu, Hailiang Dong, Gaoyuan Li, Yizhi Sheng   +3 more
doaj   +2 more sources

Heterogeneously Catalyzed Aerobic Oxidation of Methane to a Methyl Derivative [PDF]

Angewandte Chemie International Edition, 2021
AbstractA promising strategy to break through the selectivity‐conversion limit of direct methane conversion to achieve high yields is the protection of methanol via esterification to a more stable methyl ester. We present an aerobic methane‐to‐methyl‐ester approach that utilizes a highly dispersed, cobalt‐containing solid catalyst, along with ...
Andrea N. Blankenship, Manoj Ravi, Mark A. Newton, Jeroen A. van Bokhoven   +3 more
openaire   +4 more sources

Biochemistry of aerobic biological methane oxidation

Chemical Society Reviews, 2021
Methane monooxygenase enzymes use metal cofactors to activate methane under ambient, aerobic conditions. This review highlights recent progress in understanding the structure and activity of the membrane-bound and soluble methane monooxygenases.
Christopher W. Koo, Amy C. Rosenzweig
openaire   +3 more sources