Results 51 to 60 of about 1,085 (169)

Energy Conservation and Carbon Flux Distribution During Fermentation of CO or H2/CO2 by Clostridium ljungdahlii

Frontiers in Microbiology, 2020
Both CO and H2 can be utilized as energy sources during the autotrophic growth of Clostridium ljungdahlii. In principle, CO is a more energetically and thermodynamically favorable energy source for gas fermentation in comparison to H2.
Hai-Feng Zhu, Zi-Yong Liu, Xia Zhou, Ji-Hong Yi, Zeng-Min Lun, Shu-Ning Wang, Wen-Zhu Tang, Fu-Li Li   +7 more
doaj   +1 more source

A Metagenome‐Assembled Genome Catalog From the Global Ruminant Microbiomes

Animal Research and One Health, EarlyView.
The Ruminant Gastrointestinal MAG Catalog (RGMC) is a comprehensive global resource offering 40,812 strain‐level genomes across 53 bacterial and 4 archaeal classes. It greatly surpasses prior efforts in scale and diversity, serving as an essential foundation for research in ruminant nutrition, microbial function, and methane mitigation.
Shizhe Zhang, Qiushuang Li, Bingzi Ouyang, Wenxing Wang, Xiang Zhou, Xiumin Zhang, Rong Wang, Zhiliang Tan, Min Wang   +8 more
wiley   +1 more source

The role of acetogens in microbially influenced corrosion of steel [PDF]

Frontiers in Microbiology, 2014
Microbially influenced corrosion (MIC) of iron (Fe(0)) by sulfate-reducing bacteria (SRB) has been studied extensively. Through a mechanism, that is still poorly understood, electrons or hydrogen (H2) molecules are removed from the metal surface and used as electron donor for sulfate reduction.
Jaspreet eMand, Hyung Soo ePark, Hyung Soo ePark, Thomas R Jack, Gerrit eVoordouw   +4 more
openaire   +3 more sources

Model-driven approach for the production of butyrate from CO2/H2 by a novel co-culture of C. autoethanogenum and C. beijerinckii

Frontiers in Microbiology, 2022
One-carbon (C1) compounds are promising feedstocks for the sustainable production of commodity chemicals. CO2 is a particularly advantageous C1-feedstock since it is an unwanted industrial off-gas that can be converted into valuable products while ...
Sara Benito-Vaquerizo, Niels Nouse, Peter J. Schaap, Peter J. Schaap, Jeroen Hugenholtz, Stanley Brul, Ana M. López-Contreras, Vitor A. P. Martins dos Santos, Vitor A. P. Martins dos Santos, Maria Suarez-Diez   +9 more
doaj   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

The Role of Oxidative Stress in Periodontitis

Journal of Periodontal Research, EarlyView.
Oxidative stress is involved in multiple chemical reactions that take place in different intracellular organelles: mitochondria, rough endoplasmic reticulum, peroxisomes, autophagy, and aging, and can be influenced by exogenous factors: nutrition, physical activity, psychological status, environmental conditions, microbiome, and drugs.
Pedro Bullon, Francesca Giampieri, Beatriz Bullon, Maurizio Battino   +3 more
wiley   +1 more source

Moorella thermoacetica: A promising cytochrome- and quinone-containing acetogenic bacterium as platform for a CO2-based bioeconomy

Green Carbon, 2023
The negative effect of fossil-based industrial processes on the environment, especially the contribution to global warming by emitting greenhouse gases such as CO2 causes a global threat to mankind. Therefore, technologies are demanded by the society for
Florian P. Rosenbaum, Volker Müller
doaj   +1 more source

Cobalamin‐Dependent O‐Demethylation of Polymethoxyflavones by Enzymes Isolated From the Human Gut Microorganism Blautia producta MRG‐PMF1

Advanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
O‐demethylation of aryl methyl ethers is an invaluable transformation, playing a critical role in ecological circulation by degrading abundant lignin‐derived compounds and other natural products. Chemical O‐demethylation requires harsh reaction conditions; thus, the need for biocatalytic solutions is of high interest.
Niels Krabbe Johnsen, Mykola Franchuk, Freja Elisabeth Wind Rasmussen, Zheng Guo, Jaehong Han, Bekir Engin Eser   +5 more
wiley   +1 more source

Interconnection of methanogenic and acetogenic pathways [PDF]

FEMS Microbiology Letters, 1983
Methanopterin displays a folate-like biochemistry: methenyl-, methylene- and methyltetrahydromethanopterin are intermediates in the process of methanogenesis. A corrinoid-enzyme is involved in methanol conversion and the possible function of such enzymes in cell-carbon synthesis and acetate conversion is discussed.
Godfried D. Vogels, Cornelis M. Visser
openaire   +2 more sources

Methanol Metabolism in the Cytochrome and Menaquinone‐Containing Acetogen Moorella thermoacetica

Environmental Microbiology, Volume 28, Issue 7, July 2026.
The thermophilic acetogenic bacterium Moorella thermoacetica is a promising platform organism to convert C1 compounds to valuable products. Gaseous C1 substrates are technically difficult to use for fermentation in an industrial scale, but methanol, which can be produced chemically from carbon dioxide, is a suitable alternative.
Florian P. Rosenbaum, Anja Poehlein, Rolf Daniel, Volker Müller   +3 more
wiley   +1 more source