Results 1 to 10 of about 3,492 (201)

Acetogenesis in the Energy-Starved Deep Biosphere – A Paradox? [PDF]

Frontiers in Microbiology, 2012
Under anoxic conditions in sediments, acetogens are often thought to be outcompeted by microorganisms performing energetically more favorable metabolic pathways, such as sulfate reduction or methanogenesis. Recent evidence from deep subseafloor sediments
Mark A Lever
exaly   +7 more sources

Reductive acetogenesis is a dominant process in the ruminant hindgut [PDF]

Microbiome
Background The microbes residing in ruminant gastrointestinal tracts play a crucial role in converting plant biomass to volatile fatty acids, which serve as the primary energy source for ruminants.
Qiushuang Li, Jiabin Huo, Gaofeng Ni, Fan Zhang, Shizhe Zhang, Xiumin Zhang, Rong Wang, Jinzhen Jiao, Zhongtang Yu, Xuanxuan Pu, Yipeng Yue, Emilio M. Ungerfeld, Xiaoli Zhang, Jian Wu, Zhiliang Tan, Chris Greening, Min Wang   +16 more
doaj   +6 more sources

Effect of Humin and Chemical Factors on CO2-Fixing Acetogenesis and Methanogenesis [PDF]

International Journal of Environmental Research and Public Health, 2022
Acetogenesis and methanogenesis have attracted attention as CO2-fixing reactions. Humin, a humic substance insoluble at any pH, has been found to assist CO2-fixing acetogenesis as the sole electron donor.
Duyen Minh Pham, Takuya Kasai, Arata Katayama   +2 more
exaly   +4 more sources

Methanogenesis inhibition remodels microbial fermentation and stimulates acetogenesis in ruminants. [PDF]

Proc Natl Acad Sci U S A
Rumen microbiota enable ruminants to grow on fibrous plant materials, but also produce methane, driving 5% of global greenhouse gas emissions and leading to a loss of gross energy content. Methanogenesis inhibitors such as 3-nitrooxypropanol (3-NOP) decrease methane emissions in ruminants when supplemented in feed.
Ni G, Wang M, Walker N, Muetzel S, Schmidt O, Fischer A, Stemmler RT, Leung PM, Zhang X, Li Q, Jain S, Jespersen M, Grinter R, Archer SDJ, Pacheco D, Lowe K, Pope PB, Müller V, Pitta DW, Janssen PH, Watson M, Attwood GT, Ver Loren van Themaat E, Kindermann M, Greening C.   +24 more
europepmc   +4 more sources

Enhanced Acetogenesis of Waste Activated Sludge by Conditioning with Processed Organic Wastes in Co-Fermentation: Kinetics, Performance and Microbial Response [PDF]

Energies, 2020
Aimed at the low ratio of carbon and nitrogen (C/N, approximately 7/1) of waste activated sludge (WAS), which would inhibit the acetogenesis process during anaerobic fermentation, this study introduced three brewing wastes, including vinegar (VR ...
Cristiano Varrone, Aijuan Zhou, Varrone Cristiano   +2 more
exaly   +4 more sources

Genomic and enzymatic evidence of acetogenesis by anaerobic methanotrophic archaea [PDF]

Nature Communications, 2020
Ocean cold seeps are poorly understood relative to related systems like hydrothermal vents. Here the authors use high pressure bioreactors and microbial communities from a cold seep mud volcano and find a previously missing step of methane conversion to ...
Shanshan Yang, Yongxin Lv, Xipeng Liu, Yinzhao Wang, Qilian Fan, Zhifeng Yang, Nico Boon, Fengping Wang, Xiang Xiao, Yu Zhang   +9 more
doaj   +6 more sources

Humin Assists Reductive Acetogenesis in Absence of Other External Electron Donor [PDF]

International Journal of Environmental Research and Public Health, 2020
The utilization of extracellular electron transfer by microorganism is highly engaging for remediation of toxic pollutants under “energy-starved” conditions.
Mahasweta Laskar, Takuya Kasai, Arata Katayama   +2 more
exaly   +4 more sources

Genomic and Transcriptomic Insights Into the Autotrophic Metabolism on H₂ + CO₂ or CO of the Thermophilic Acetogenic Model Organism Moorella thermoacetica. [PDF]

Environ Microbiol
Moorella thermoacetica is the model organism for elucidation of acetogenesis. The reduction of CO2 to acetate is well studied, but how redox carrier balancing and energy conservation are maintained during autotrophic growth and how H2 is oxidised remains enigmatic.
Rosenbaum FP, Poehlein A, Daniel R, Müller V.   +3 more
europepmc   +2 more sources

Biochemistry of methanol-dependent acetogenesis in Eubacterium callanderi KIST612 [PDF]

Environmental Microbiology, 2021
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 ...
Luna Ribaric, Helge M. Dietrich, Christian Öppinger, Dietrich, Helge M., Ribaric, Luna, Florian Kremp, Volker Müller, Kremp, Florian, Öppinger, Christian Manfred, Müller, Volker   +9 more
core   +4 more sources

Acetogenesis and the Wood–Ljungdahl pathway of CO2 fixation [PDF]

Biochimica Et Biophysica Acta - Proteins and Proteomics, 2008
Conceptually, the simplest way to synthesize an organic molecule is to construct it one carbon at a time. The Wood-Ljungdahl pathway of CO(2) fixation involves this type of stepwise process. The biochemical events that underlie the condensation of two one-carbon units to form the two-carbon compound, acetate, have intrigued chemists, biochemists, and ...
Stephen W Ragsdale, Elizabeth Pierce
exaly   +3 more sources