Results 71 to 80 of about 8,239 (202)

Integrating transcriptomic data with metabolic model unravels the electron transfer mechanisms of Methanosarcina barkeri

open access: yesWater Research X
Methanogenic archaea, particularly Methanosarcina, are pivotal to the global carbon cycle and renewable energy production due to their versatile metabolic capabilities.
Wentao Tang   +5 more
doaj   +1 more source

Trash‐to‐Energy: Shedding Light on Plastic and Biomass Valorization Through Artificial Photosynthesis Towards Sustainability

open access: yesExploration, Volume 5, Issue 6, December 2025.
To engrave a circular economy, artificial photosynthesis emerges as a promising and prosperous strategy to upcycle solid waste into clean fuel and valuable chemicals for sustainable fuel production. This review highlights the design of photocatalysts and external‐field‐assisted photocatalysis for effective solid waste conversion toward an ...
Ke Ming Lim   +2 more
wiley   +1 more source

Structural and functional characterization of a metagenomically derived γ‐type carbonic anhydrase and its engineering into a hyperthermostable esterase

open access: yesProtein Science, Volume 34, Issue 12, December 2025.
Abstract The 16S microbial community profiling of a metagenomics library from geothermal spring at Lisvori (Lesvos island, Greece) enabled the identification of a putative sequence exhibiting 95% identity to the γ‐type carbonic anhydrase (γ‐CA) from Caloramator australicus (γ‐CaCA).
Charoutioun S. Bodourian   +4 more
wiley   +1 more source

A biochemical framework for anaerobic oxidation of methane driven by Fe(III)-dependent respiration

open access: yesNature Communications, 2018
The unavailability of pure cultures has prevented a mechanistic understanding of anaerobic methanotrophy. Here the authors report a biochemical investigation of Methanosarcina acetivorans that supports a pathway anchored by Fe(III)-dependent mechanisms ...
Zhen Yan   +3 more
doaj   +1 more source

Recent Progress in CO2 Conversion: An Overview of Catalytic Strategies for Sustainable Fuel and Chemical Synthesis

open access: yesSmartMat, Volume 6, Issue 6, December 2025.
This review systematically outlines recent advances in the catalytic strategies for converting CO₂ into valuable products, including photocatalysis, electrocatalysis, CO2 hydrogenation, photothermal catalysis, non‐thermal plasma, and biocatalytic processes.
An Zhang   +68 more
wiley   +1 more source

Bioenergetics of methanogenesis from acetate by Methanosarcina barkeri [PDF]

open access: yesJournal of Bacteriology, 1988
Methane formation from acetate by resting cells of Methanosarcina barkeri was accompanied by an increase in the intracellular ATP content from 0.9 to 4.0 nmol/mg of protein. Correspondingly, the proton motive force increased to a steady-state level of -120 mV.
S, Peinemann   +3 more
openaire   +2 more sources

Expanding the Diet for DIET: Electron Donors Supporting Direct Interspecies Electron Transfer (DIET) in Defined Co-Cultures

open access: yesFrontiers in Microbiology, 2016
Direct interspecies electron transfer (DIET) has been recognized as an alternative to interspecies H2 transfer as a mechanism for syntrophic growth, but previous studies on DIET with defined co-cultures have only documented DIET with ethanol as the ...
Li-YIng eWang   +4 more
doaj   +1 more source

Spatial Heterogeneity in Methane Biogeochemistry and Prokaryotic Community Structure in Sub‐Arctic Waterbodies in Northern Canada

open access: yesEnvironmental Microbiology, Volume 27, Issue 12, December 2025.
Prokaryotic communities and methane dynamics differed markedly across 16 sub‐Arctic waterbodies. Maximum depth and permafrost thaw emerged as key drivers, with non‐stratified thaw‐affected sites hosting distinct communities and elevated methane fluxes, highlighting their potential role as emerging hotspots of methane emissions.
Arthur Szylit   +8 more
wiley   +1 more source

Metagenomic Insights Into the Ecology, Taxonomy and Metabolic Capabilities of ‘Candidatus Darwinibacteriales’ Ord. Nov. (Formerly MBA03), a Potential Key Player in Anaerobic Digestion

open access: yesMicrobial Biotechnology, Volume 18, Issue 12, December 2025.
Metagenomic analysis of anaerobic digesters revealed a dominant, uncultured bacterial taxon—MBA03—now proposed as ‘Candidatus Darwinibacteriales’ ord. nov. This newly defined order includes potential syntrophic acetate‐oxidising bacteria (SAOB), suggesting a key role in methane production.
Roser Puchol‐Royo   +9 more
wiley   +1 more source

The Role of Active Site Residues in ATP Binding and Catalysis in the Methanosarcina thermophila Acetate Kinase

open access: yesLife, 2015
Acetate kinase (ACK), which catalyzes the reversible phosphorylation of acetate by ATP, is a member of the acetate and sugar kinase/heat shock cognate/actin (ASKHA) superfamily. ASKHA family members share a common core fold that includes an ATPase domain
Cheryl Ingram-Smith   +5 more
doaj   +1 more source

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