Results 21 to 30 of about 525 (111)

Methyl-Coenzyme M Reductase and Its Post-translational Modifications

Frontiers in Microbiology, 2020
The methyl-coenzyme M reductase (MCR) is a central enzyme in anaerobic microbial methane metabolism, which consists of methanogenesis and anaerobic oxidation of methane (AOM).
Hao Chen, Qinglei Gan, Chenguang Fan, Chenguang Fan   +3 more
doaj   +1 more source

Anaerobic oxidation has a minor effect on mitigating seafloor methane emissions from gas hydrate dissociation

Communications Earth & Environment, 2022
Microbial anaerobic oxidation of methane may not substantially mitigate projected warming-induced emissions of methane from marine hydrate-bearing sediments, according to a coupled hydraulic-thermodynamic-geomechanical hydrate model.
Christian Stranne, Matt O’Regan, Wei-Li Hong, Volker Brüchert, Marcelo Ketzer, Brett F. Thornton, Martin Jakobsson   +6 more
doaj   +1 more source

Microbial chromate reduction coupled with anaerobic oxidation of methane in a membrane biofilm reactor

Environment International, 2019
It has been reported that microbial reduction of sulfate, nitrite/nitrate and iron/manganese could be coupled with anaerobic oxidation of methane (AOM), which plays a significant role in controlling methane emission from anoxic niches. However, little is
Jing-Huan Luo, Mengxiong Wu, Jianyong Liu, Guangren Qian, Zhiguo Yuan, Jianhua Guo   +5 more
doaj   +1 more source

Enzymes involved in the anaerobic oxidation of n-alkanes: from methane to long-chain paraffins

Frontiers in Microbiology, 2013
Anaerobic microorganisms play key roles in the biogeochemical cycling of methane and non-methane alkanes. To date, there appear to be at least three proposed mechanisms of anaerobic methane oxidation (AOM). The first pathway is mediated by consortia of
Amy V. Callaghan
doaj   +1 more source

Different impacts of an electron shuttle on nitrate- and nitrite-dependent anaerobic oxidation of methane in paddy soil

Plant, Soil and Environment, 2021
Quinones, redox-active functional groups in soil organic matter, can act as electron shuttles for microbial anaerobic transformation. Here, we used 13CH4 to trace 13C conversion (13C-CO2 + 13C-SOC) to investigate the influence of an artificial electron ...
Yaohong Zhang, Fangyuan Wang
doaj   +1 more source

A metagenomic study of methanotrophic microorganisms in Coal Oil Point seep sediments

BMC Microbiology, 2011
Background Methane oxidizing prokaryotes in marine sediments are believed to function as a methane filter reducing the oceanic contribution to the global methane emission.
Haverkamp Thomas HA, Håvelsrud Othilde, Kristensen Tom, Jakobsen Kjetill S, Rike Anne   +4 more
doaj   +1 more source

Measuring Local Exothermic Effects During the Oxidative Coupling of Methane Using Operando Luminescence Thermometry

Angewandte Chemie, EarlyView.
Operando luminescence thermometry shows that the local catalyst temperature can exceed the set oven temperature by almost 250°C during the exothermic oxidative coupling of methane process. We demonstrate how the reactor dimensions, catalyst grain size, and reactant feed mixture affect the local temperature.
Daniël W. Groefsema, Freddy T. Rabouw, D. Michiel Boele, A.N. René Bos, Alexander P. van Bavel, Bert M. Weckhuysen   +5 more
wiley   +2 more sources

Methane-yielding microbial communities processing lactate-rich substrates: a piece of the anaerobic digestion puzzle

Biotechnology for Biofuels, 2018
Background Anaerobic digestion, whose final products are methane and carbon dioxide, ensures energy flow and circulation of matter in ecosystems. This naturally occurring process is used for the production of renewable energy from biomass.
Anna Detman, Damian Mielecki, Łukasz Pleśniak, Michał Bucha, Marek Janiga, Irena Matyasik, Aleksandra Chojnacka, Mariusz-Orion Jędrysek, Mieczysław K. Błaszczyk, Anna Sikora   +9 more
doaj   +1 more source

Microbial Communities Involved in Methane, Sulfur, and Nitrogen Cycling in the Sediments of the Barents Sea

Microorganisms, 2021
A combination of physicochemical and radiotracer analysis, high-throughput sequencing of the 16S rRNA, and particulate methane monooxygenase subunit A (pmoA) genes was used to link a microbial community profile with methane, sulfur, and nitrogen cycling ...
Shahjahon Begmatov, Alexander S. Savvichev, Vitaly V. Kadnikov, Alexey V. Beletsky, Igor I. Rusanov, Alexey A. Klyuvitkin, Ekaterina A. Novichkova, Andrey V. Mardanov, Nikolai V. Pimenov, Nikolai V. Ravin   +9 more
doaj   +1 more source

A Critical Look at the Combined Use of Sulfur and Oxygen Isotopes to Study Microbial Metabolisms in Methane-Rich Environments

Frontiers in Microbiology, 2018
Separating the contributions of anaerobic oxidation of methane and organoclastic sulfate reduction in the overall sedimentary sulfur cycle of marine sediments has benefited from advances in isotope biogeochemistry.
Gilad Antler, Gilad Antler, Gilad Antler, André Pellerin   +3 more
doaj   +1 more source