Results 51 to 60 of about 3,608 (195)

Influence of corrinoid antagonists on methanogen metabolism [PDF]

Journal of Bacteriology, 1981
Iodopropane inhibited cell growth and methane production when Methanobacterium thermoautotrophicum, Methanobacterium formicicum, and Methanosarcina barkeri were cultured on H2-CO2. Iodopropane (40 microM) inhibited methanogenesis (30%) and growth (80%) when M. barkeri was cultured mixotrophically on H2-CO2-methanol.
W, Kenealy, J G, Zeikus
openaire   +2 more sources

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

Environmental Microbiology, Volume 28, Issue 4, April 2026.
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.
Florian P. Rosenbaum, Anja Poehlein, Rolf Daniel, Volker Müller   +3 more
wiley   +1 more source

Microbes display broad diversity in cobamide preferences

mSystems
Cobamides, the vitamin B12 (cobalamin) family of cofactors, are used by most organisms but produced by only a fraction of prokaryotes, and are thus considered key shared nutrients among microbes.
Kenny C. Mok, Olga M. Sokolovskaya, Adam M. Deutschbauer, Hans K. Carlson, Michiko E. Taga   +4 more
doaj   +1 more source

A bacterial chloroform reductive dehalogenase: purification and biochemical characterization

Microbial Biotechnology, 2017
Summary We report herein the purification of a chloroform (CF)‐reducing enzyme, TmrA, from the membrane fraction of a strict anaerobe Dehalobacter sp. strain UNSWDHB to apparent homogeneity with an approximate 23‐fold increase in relative purity compared
Bat‐Erdene Jugder, Susanne Bohl, Helene Lebhar, Robert D. Healey, Mike Manefield, Christopher P. Marquis, Matthew Lee   +6 more
doaj   +1 more source

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol [PDF]

, 2016
Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study glycerol was injected in an aquifer contaminated
Abelson, Aeppli, Anderson, Atashgahi, Atashgahi, Bernardet, Bernardet, Biebl, Bowman, Briée, Brown, Campbell, Canfield, Caporaso, Clarke, Damgaard, Daprato, Dennis, Dojka, Dugat-Bony, Duhamel, Duhamel, Eisenmann, Ellis, Elshahed, Freeborn, Gelder, Gihring, Gonzáles, Goris, Goris, Gu, Hamonts, Handley, Handley, He, He, Hendrickson, Hoelen, Hohnstock-Ashe, Hug, Imfeld, Imfeld, Kao, Kielhorn, Kocur, Kodama, Kodama, Lee, Lee, Lendvay, Leys, Lowe, Luijten, Luo, Lê Cao, Löffler, Löffler, Macbeth, Maillard, Major, Men, Men, Men, Merlino, Moe, Peura, Puigserver, Pérez-De-Mora, Qatibi, Qatibi, Quast, Rabus, Rahm, Ramiro-Garcia, Richardson, Ritalahti, Rossi, Rowe, Révész, Scheutz, Scheutz, Schipp, Schneidewind, Shade, Smatlak, Stroo, Sutton, Sutton, Tsai, Wilkens, Wrighton, Wrighton, Yan, Yan, Yang, Zhou, Zhuang   +97 more
core   +2 more sources

Carboxydotrophic Acetogenesis in Alkaline Conditions Results in Transient Formate Production by the Halo‐Alkaliphilic Acetogen Haloacetibacter carboxydivorans Gen. Nov. sp. Nov

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
This work presents the physiological exploration of the halo‐alkaliphilic, carboxydotrophic acetogen bacterium MD4. In contrast to well‐characterised neutrophilic and slightly acidophilic acetogenic carboxydotrophs, this work shows an important role for formate production, instead of ethanol, as a redox exhaust mechanism in alkaline conditions ...
Martijn Diender, Isabelle M. Keijsers, Anastasia Galani, Timo van Roosmalen, Alfons J. M. Stams, Diana Z. Sousa   +5 more
wiley   +1 more source

Uneven distribution of cobamide biosynthesis and dependence in bacteria predicted by comparative genomics. [PDF]

, 2019
The vitamin B12 family of cofactors known as cobamides are essential for a variety of microbial metabolisms. We used comparative genomics of 11,000 bacterial species to analyze the extent and distribution of cobamide production and use across bacteria ...
Haft, David R, Han, Andrew W, Jackson, Samantha N, Mok, Kenny C, Seth, Erica C, Shelton, Amanda N, Taga, Michiko E   +6 more
core   +1 more source

A Cytochrome c‐Containing Periplasmic Nitrate Reductase in the Acetogen Sporomusa ovata

Environmental Microbiology, Volume 28, Issue 1, January 2026.
Sporomusa ovata, a cytochrome‐containing, acetogenic bacterium, conserves energy by reduction of carbon dioxide to acetate. Nitrate serves as additional electron acceptor and is reduced to ammonium, resulting in increased growth and reduced acetate production.
Lara M. Waschinger, Anja Poehlein, Rolf Daniel, Florian P. Rosenbaum, Volker Müller   +4 more
wiley   +1 more source

Control of Metal-Catalyzed Reactions by Organic Ligands: From Corrinoid and Porphinoid Metal Complexes to Tailor-Made Catalysts for Asymmetric Synthesis

CHIMIA, 2006
Corrinoid and porphinoid metal complexes playa fundamental role in nature as catalysts for a variety of biochemical transformations. The properties of the metal ion in these complexes are strongly influenced by the macrocyclic ligand.
Andreas Pfaltz
doaj   +2 more sources

Redox, haem and CO in enzymatic catalysis and regulation [PDF]

, 2012
The present paper describes general principles of redox catalysis and redox regulation in two diverse systems. The first is microbial metabolism of CO by the Wood–Ljungdahl pathway, which involves the conversion of CO or H2/CO2 into acetyl-CoA, which ...
Bender, Güneş, Bianchetti, Christopher M., Britt, R. David, Cramer, Stephen P., Doukov, Tzanko I., Drennan, Catherine L., George, Simon J., Gupta, Nirupama, Jakob, Ursula, Jenkins, Paul M., Kung, Yan, Leichert, Lars, Martens, Jeffrey R., Phillips, George N., Ragsdale, Stephen W., Stich, Troy A., Yan, Lifen, Yi, Li   +17 more
core   +1 more source