Results 11 to 20 of about 2,711 (132)

Methanol Metabolism in the Cytochrome and Menaquinone-Containing Acetogen Moorella thermoacetica. [PDF]

Environ Microbiol
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.
Rosenbaum FP, Poehlein A, Daniel R, Müller V.   +3 more
europepmc   +2 more sources

Syngas as Electron Donor for Sulfate and Thiosulfate Reducing Haloalkaliphilic Microorganisms in a Gas-Lift Bioreactor

Microorganisms, 2020
Biodesulfurization processes remove toxic and corrosive hydrogen sulfide from gas streams (e.g., natural gas, biogas, or syngas). To improve the efficiency of these processes under haloalkaline conditions, a sulfate and thiosulfate reduction step can be ...
Caroline M. Plugge, João A. B. Sousa, Stephan Christel, Mark Dopson, Martijn F. M. Bijmans, Alfons J. M. Stams, Martijn Diender   +6 more
doaj   +1 more source

Obligate autotrophy at the thermodynamic limit of life in a new acetogenic bacterium

Frontiers in Microbiology, 2023
One of the important current issues of bioenergetics is the establishment of the thermodynamic limits of life. There is still no final understanding of what is the minimum value of the energy yield of a reaction that is sufficient to be used by an ...
Evgenii N. Frolov, Alexander G. Elcheninov, Alexandra V. Gololobova, Stepan V. Toshchakov, Andrei A. Novikov, Alexander V. Lebedinsky, Ilya V. Kublanov   +6 more
doaj   +1 more source

A Third Way of Energy Conservation in Acetogenic Bacteria

Microbiology Spectrum, 2022
Acetogenic bacteria are a group of strictly anaerobic bacteria that make a living from acetate formation from two molecules of CO2 via the Wood-Ljungdahl pathway (WLP).
Florian Kremp, Jennifer Roth, Volker Müller   +2 more
doaj   +1 more source

Anaerobic digestion of donkey dung for biogas production

South African Journal of Science, 2016
Biogas can provide a solution to some of South Africa’s energy needs, especially in rural areas of Eastern Cape Province that have plentiful biogas substrates from donkeys, goats, sheep, cattle and chicken.
Patrick Mukumba, Golden Makaka, Sampson Mamphweli   +2 more
doaj   +1 more source

Extracellular Electron Uptake by Acetogenic Bacteria: Does H2 Consumption Favor the H2 Evolution Reaction on a Cathode or Metallic Iron?

Frontiers in Microbiology, 2020
Some acetogenic bacteria are capable of using solid electron donors, such as a cathode or metallic iron [Fe(0)]. Acetogens using a cathode as electron donor are of interest for novel applications such as microbial electrosynthesis, while microorganisms ...
Jo Philips
doaj   +1 more source

The root zone of graminoids: A niche for H2-consuming acetogens in a minerotrophic peatland

Frontiers in Microbiology, 2022
The importance of acetogens for H2 turnover and overall anaerobic degradation in peatlands remains elusive. In the well-studied minerotrophic peatland fen Schlöppnerbrunnen, H2-consuming acetogens are conceptualized to be largely outcompeted by iron ...
Anja B. Meier, Sindy Oppermann, Harold L. Drake, Oliver Schmidt, Oliver Schmidt   +4 more
doaj   +1 more source

Microbial Degradation of Cellulosic Material and Gas Generation: Implications for the Management of Low- and Intermediate-Level Radioactive Waste

Frontiers in Microbiology, 2019
Deep geologic repositories (DGR) in Canada are designed to contain and isolate low- and intermediate-level radioactive waste. Microbial degradation of the waste potentially produces methane, carbon dioxide and hydrogen gas.
Danielle Beaton, Danielle Beaton, Phillip Pelletier, Richard R. Goulet, Richard R. Goulet   +4 more
doaj   +1 more source

“Candidatus Galacturonibacter soehngenii” Shows Acetogenic Catabolism of Galacturonic Acid but Lacks a Canonical Carbon Monoxide Dehydrogenase/Acetyl-CoA Synthase Complex

Frontiers in Microbiology, 2020
Acetogens have the ability to fixate carbon during fermentation by employing the Wood-Ljungdahl pathway (WLP), which is highly conserved across Bacteria and Archaea.
Laura C. Valk, Martijn Diender, Gerben R. Stouten, Jette F. Petersen, Per H. Nielsen, Morten S. Dueholm, Jack T. Pronk, Mark C. M. van Loosdrecht   +7 more
doaj   +1 more source

A theoretical comparison between two ruminal electron sinks

Frontiers in Microbiology, 2013
Dihydrogen accumulation resulting from methanogenesis inhibition in the rumen is an energy loss and can inhibit fermentation. The objective of this analysis was to compare the energetic and nutritional consequences of incorporating H2 into reductive ...
Emilio M. Ungerfeld
doaj   +1 more source