Results 51 to 60 of about 2,711 (132)

Biophysical and biochemical studies support TP0094 as a phosphotransacetylase in an acetogenic energy-conservation pathway in Treponema pallidum.

PLoS ONE, 2023
The mechanisms of energy generation and carbon-source utilization in the syphilis spirochete Treponema pallidum have remained enigmatic despite complete genomic sequence information. Whereas the bacterium harbors enzymes for glycolysis, the apparatus for
Chad A Brautigam, Ranjit K Deka, Shih-Chia Tso, Wei Z Liu, Michael V Norgard   +4 more
doaj   +1 more source

Optimizing Microbial Fuel Cell Efficiency Through a Designed Electrogenic Consortium to Remove Alkylbenzenes

ChemElectroChem, Volume 13, Issue 10, 19 May 2026.
A mangrove‐derived electrogenic microbial consortium was successfully acclimated to codegrade ethylbenzene and xylenes in a microbial fuel cell (MFC). Acclimation provided high degradation efficiencies (up to 97%) and improved energy recovery. The MFC reached voltage of 520 mV and power density of 63.4 mW m−2.
João Carlos de Souza, Ana Clara Bonizol Zani, Valeria Reginatto, Adalgisa Rodrigues de Andrade   +3 more
wiley   +1 more source

Limits to dihydrogen incorporation into electron sinks alternative to methanogenesis in ruminal fermentation

Frontiers in Microbiology, 2015
Research is being conducted with the objective of decreasing methane (CH4) production in the rumen, as methane emissions from ruminants are environmentally damaging and a loss of digestible energy to ruminants. Inhibiting ruminal methanogenesis generally
Emilio M. Ungerfeld
doaj   +1 more source

Homoacetogenesis and microbial community composition are shaped by pH and total sulfide concentration

Microbial Biotechnology, 2020
Summary Biological CO2 sequestration through acetogenesis with H2 as electron donor is a promising technology to reduce greenhouse gas emissions. Today, a major issue is the presence of impurities such as hydrogen sulfide (H2S) in CO2 containing gases ...
Eleftheria Ntagia, Ioanna Chatzigiannidou, Adam J. Williamson, Jan B. A. Arends, Korneel Rabaey   +4 more
doaj   +1 more source

Nanobiocatalysts: Potential Applications in Biofuel Production and Biotransformation

Carbon Neutralization, Volume 5, Issue 3, May 2026.
The application of nanobiocatalysts in the field of biofuel production and the biotransformation of substrate were reviewed. Further, the possible research gaps in the field of biofuel and value‐added compound production and a possible way to enhance the application of nanobiocatalyst in future development are highlighted.
Preethi Muthu, Kalaiselvi Thiyagarajan, V. Pugalenthi, M. Gunasekaran, J. Rajesh Banu   +4 more
wiley   +1 more source

Methane emissions from fresh dairy cattle and pig slurry

Journal of Environmental Quality, Volume 55, Issue 3, May/June 2026.
Abstract During manure storage, methane (CH4) is produced by anaerobic decomposition of organic matter by methanogens. Frequent removal and further processing of manure from the barn can reduce CH4 emissions. However, little is known about how much CH4 is lost during the adaptation of methanogens to the changing environment from the gut to storage. The
E. G. G. van Boxmeer, H. J. Smit, N. Verdoes   +2 more
wiley   +1 more source

Acetogenic Methane‐Carbon Monoxide Comproportionation: An Exergonic but Unobserved Microbial Metabolism

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Microbial metabolism relies on redox reactions that exploit chemical disequilibria. While aerobic carbon oxidation, carbon fixation, and fermentation are well studied, the broader space of anaerobic carbon redox reactions remains underexplored.
Heidi S. Aronson, William D. Leavitt, Douglas E. LaRowe   +2 more
wiley   +1 more source

A Seasonal Record of Bacterial Communities in Micritized Carbonate Sediments of the Eastern Red Sea

Environmental Microbiology, Volume 28, Issue 5, May 2026.
Evidence of intense micritization is observed throughout Al Kharrar lagoon sediments (0–80 cm). Diverse bacterial communities with putative roles in carbonate cycling display depth‐related shifts. Their stable seasonal presence suggests sustained micritization beyond the photic zone, refining our understanding of the potential role of bacteria in early
Charlène Odobel, Elisa Garuglieri, Thomas Teillet, Ramona Marasco, Hachmann Kai Hachmann, Viswasanthi Chandra, Volker Vahrenkamp, Monica Sánchez‐Román, Daniele Daffonchio   +8 more
wiley   +1 more source

Perspectives for Advancing Biotechnological Succinic Acid Production

Microbial Biotechnology, Volume 19, Issue 5, May 2026.
Succinic acid is an important molecule for sustainable chemical manufacturing, but its industrial production faces high costs and sustainability challenges, which are linked to feedstocks and excessive acid/base consumption. This opinion explores production routes based on next‐generation feedstocks and low‐pH fermentations to inspire novel cost ...
Christoph Gunkel, Bastian Blombach
wiley   +1 more source

Genomic and enzymatic evidence of acetogenesis by anaerobic methanotrophic archaea

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   +1 more source