Results 21 to 30 of about 2,678 (169)
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 +4 more
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Dichloromethane utilized by an anaerobic mixed culture: acetogenesis and methanogenesis [PDF]
Biodegradation, 1991 Dichloromethane (8.9 mg/l) was eliminated from industrially polluted, anaerobic groundwater in a fixed-bed reactor (43 m3) which was packed with activated charcoal and operated continuously for over three years. The elimination of dichloromethane over this period was some ten-fold in excess of the sorptive capacity of the charcoal, and the elimination (
S A, Stromeyer +4 more
openaire +3 more sources
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 +4 more
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Alamethicin Suppresses Methanogenesis and Promotes Acetogenesis in Bioelectrochemical Systems [PDF]
Applied and Environmental Microbiology, 2015 ABSTRACT Microbial electrosynthesis (MES) systems with mixed cultures often generate a variety of gaseous and soluble chemicals. Methane is the primary end product in mixed-culture MES because it is the thermodynamically most favorable reduction product of CO 2 .
Zhu, Xiuping +3 more
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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 +7 more
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Biochemistry of methanol‐dependent acetogenesis in Eubacterium callanderi
Environmental Microbiology, 2021 Summary Methanol is the simplest of all alcohols, is universally distributed in anoxic sediments as a result of plant material decomposition and is constantly attracting attention as an interesting substrate for anaerobes like acetogens that can convert bio‐renewable methanol into value‐added chemicals.
Helge M. Dietrich +4 more
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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
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Enzymology of the Wood–Ljungdahl Pathway of Acetogenesis [PDF]
Annals of the New York Academy of Sciences, 2008 The biochemistry of acetogenesis is reviewed. The microbes that catalyze the reactions that are central to acetogenesis are described and the focus is on the enzymology of the process. These microbes play a key role in the global carbon cycle, producing over 10 trillion kilograms of acetic acid annually.
openaire +3 more sources
Atribacteria Reproducing over Millions of Years in the Atlantic Abyssal Subseafloor
mBio, 2020 How microbial metabolism is translated into cellular reproduction under energy-limited settings below the seafloor over long timescales is poorly understood.
Aurèle Vuillemin +7 more
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Frontiers in Microbiology, 2021 Symbiotic digestion of lignocellulose in the hindgut of higher termites is mediated by a diverse assemblage of bacteria and archaea. During a large-scale metagenomic study, we reconstructed 15 metagenome-assembled genomes of Bathyarchaeia that represent ...
Hui Qi Loh +2 more
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