Results 121 to 130 of about 3,693 (224)

Description of Treponema azotonutricium sp. nov. and Treponema primitia sp. nov., the First Spirochetes Isolated from Termite Guts [PDF]

, 2004
Long after their original discovery, termite gut spirochetes were recently isolated in pure culture for the first time. They revealed metabolic capabilities hitherto unknown in the Spirochaetes division of the Bacteria, i.e., H2 plus CO2 acetogenesis (J.
Breznak, John A., Graber, Joseph R., Leadbetter, Jared R.   +2 more
core   +1 more source

Cobalamin‐Dependent Aryl Methyl Ether O‐Demethylases: Promising Enzymes for Biocatalytic Applications from Lignin Valorization to Organic Synthesis

ChemCatChem, Volume 17, Issue 21, November 10, 2025.
Cobalamin‐dependent aryl methyl ether O‐demethylases have high potential for biocatalytic applications, including lignin valorization and synthetic chemistry. In this review, we provide a detailed overview of such O‐demethylase systems identified to date from various microorganisms, including their mechanism, substrate scope and selectivity, and ...
Niels Krabbe Johnsen, Santipap Chaiyasarn, Zheng Guo, Jaehong Han, Bekir Engin Eser   +4 more
wiley   +1 more source

Nickel transport by the thermophilic acetogen Acetogenium kivui [PDF]

Applied and Environmental Microbiology, 1989
Exogenous 63Ni was incorporated into carbon monoxide dehydrogenase when Acetogenium kivui ATCC 33488 was cultivated in the presence of 63NiCl2. The capacity for nickel (63NiCl2) transport was greatest with cells harvested from the mid- to late exponential phases of growth.
H C, Yang, S L, Daniel, T D, Hsu, H L, Drake   +3 more
openaire   +2 more sources

A critical review on sustainable biochar system through gasification: energy and environmental applications [PDF]

, 2017
This review lays great emphasis on production and characteristics of biochar through gasification. Specifically, the physicochemical properties and yield of biochar through the diverse gasification conditions associated with various types of biomass were
Chen, Season S., Kwon, Eilhann E., Lee, Jechan, Ok, Yong Sik, Tsang, Daniel C.W., Wang, Chi-Hwa, You, Siming   +6 more
core   +1 more source

Current understanding of electroautotrophy and its relevance in astrobiology‐related research

mLife, Volume 4, Issue 5, Page 473-493, October 2025.
Abstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Quansheng Wang, Maggie C. Y. Lau Vetter
wiley   +1 more source

Reductive acetogens isolated from ruminants and their effect on in vitro methane mitigation and milk performance in Holstein cows

Journal of Animal Science and Technology, 2020
This study was designed to evaluate the in vitro and in vivo effects of reductive acetogens isolated from ruminants on methane mitigation, and milk performance, respectively. Four acetogens,
Seon-Ho Kim, Lovelia L Mamuad, Mahfuzul Islam, Sang-Suk Lee   +3 more
doaj   +1 more source

Examination of a culturable microbial population from the gastrointestinal tract of the wood-eating loricariid catfish Panaque nigrolineatus [PDF]

, 2013
Fish play a critical role in nutrient cycling and organic matter flow in aquatic environments. However, little is known about the microbial diversity within the gastrointestinal tracts that may be essential in these degradation activities.
Daniel, R., McDonald, R., Schreier, H., Watts, Joy   +3 more
core   +2 more sources

From Low‐Loaded Mesophilic to High‐Loaded Thermophilic Anaerobic Digestion: Changes in Reactor Performance and Microbiome

Microbial Biotechnology, Volume 18, Issue 10, October 2025.
During the startup of a thermophilic anaerobic digester fed with sewage sludge, changes in reactor function were associated with changes in microbial community composition. The functional potential of the microbiome during different reactor stages was analyzed using genome‐resolved metagenomics.
Oskar Modin, Dan Zheng, Anna Schnürer, Ted Lundwall, Santiago Elejalde Bolanos, Jesper Olsson   +5 more
wiley   +1 more source

Formyltetrahydrofolate Synthetase Gene Diversity in the Guts of Higher Termites with Different Diets and Lifestyles [PDF]

, 2011
In this study, we examine gene diversity for formyl-tetrahydrofolate synthetase (FTHFS), a key enzyme in homoacetogenesis, recovered from the gut microbiota of six species of higher termites.
Bitsch C., Engel M. S., Fontes L. R, Inward D. J., Kambhampati S., Lovell C. R., Lozupone C., Matson E., Matsui H., Matsui H., Ohashi Y., Pester M., Potrikus C. J., Prestwich G. D., Salmassi T. M., Shinzato N., Zindel U.   +16 more
core   +3 more sources

Magnetite Nanoparticles Enhancing H2‐Driven Biomethanation in a Mixed Microbial Community

Global Challenges, Volume 9, Issue 9, September 2025.
Supplementation of magnetite nanoparticles to a mixed microbial culture accelerates H2/CO2 biomethanation by up to 13‐fold. The observed enhancement is accompanied by a marked enrichment of Paracoccus sp., suggesting the establishment of a mutualistic interaction with hydrogenotrophic methanogens via interspecies electron transfer.
Matteo Tucci, Jasper I Sabangan, Carolina Cruz Viggi, Lucia Bertaccini, Francesca Iosi, Emilio D'Ugo, Daniela Uccelletti, Bruna Matturro, Andrea Firrincieli, Agnese Piacentini, Stefano Fazi, Federico Aulenta   +11 more
wiley   +1 more source