Results 101 to 110 of about 38,162 (238)

Paleoproterozic Icehouses and the Evolution of Oxygen Mediating Enzymes: The Case for a Late Origin of Photosystem -- II [PDF]

, 2008
Two major geological problems regarding the origin of oxygenic photosynthesis are: (1) identifying a source of oxygen predating biological oxygen production and capable of driving the evolution of oxygen tolerance, and (2) determining when oxygenic ...
Kirschvink, Joseph L., Kopp, Robert E.
core  

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

Survival strategies of aerobic methanotrophs under hypoxia in methanogenic lake sediments

Environmental Microbiome
Background Microbial methane oxidation, methanotrophy, plays a crucial role in mitigating the release of the potent greenhouse gas methane from aquatic systems.
Almog Gafni, Maxim Rubin-Blum, Colin Murrell, Hanni Vigderovich, Werner Eckert, Nasmille Larke-Mejía, Orit Sivan   +6 more
doaj   +1 more source

Aerobic Methanotrophs in Natural and Agricultural Soils of European Russia

Diversity, 2013
Human activities such as land management and global warming have great impact on the environment. Among changes associated with the global warming, rising methane emission is a serious concern.
Irina Kravchenko, Andrey Yurkov, Anna Kizilova   +2 more
doaj   +1 more source

Anomalous negative excursion of carbon isotope in organic carbon after the last Paleoproterozoic glaciation in North America [PDF]

, 2010
Early Paleoproterozoic time (2.5–2.0 Ga) spanned a critical phase in Earth's history, characterized by repeated glaciations and an increase in atmospheric oxygen (the Great Oxidation Event (GOE)).
Bekker, Bekker, Bekker, Bekker, Clayton, Dutkiewicz, Eigenbrode, Eiichi Tajika, Evans, Gair, Hayes, Hayes, Hayes, Holland, Joseph L. Kirschvink, Karhu, Kazuhisa Goto, Kirschvink, Kohonen, Long, Marmo, McLennan, Nanako O. Ogawa, Naohiko Ohkouchi, Ogawa, Ohkouchi, Ojakangas, Ojakangas, Ojakangas, Papineau, Pavlov, Rainbird, Rasmussen, Ryuji Tada, Schoell, Shinji Yamamoto, Vallini, Yasuhito Sekine, Young, Young, Young, Young   +41 more
core   +1 more source

GLP‐1 agonists and the gut microbiome: A bidirectional relationship

British Journal of Clinical Pharmacology, Volume 92, Issue 5, Page 1309-1325, May 2026.
Abstract Glucagon‐like peptide‐1 (GLP‐1) receptor agonists have transformed the management of type 2 diabetes mellitus (T2DM) and obesity, yet their interactions with the gut microbiome remain an emerging frontier in pharmacological and metabolic research.
Srinivas Kamath, Nicole S. L. Chan, Paul Joyce   +2 more
wiley   +1 more source

Estuarine Nitrifiers: New Players, Patterns and Processes [PDF]

, 2010
Ever since the first descriptions of ammonia-oxidizing Bacteria by Winogradsky in the late 1800s, the metabolic capability of aerobic ammonia oxidation has been restricted to a phylogenetically narrow group of bacteria.
Bernhard, Anne E, Bollmann, Annette
core   +2 more sources

Microbial diversity in deep-sea methane seep sediments presented by SSU rRNA gene tag sequencing [PDF]

, 2012
http://www.godac.jamstec.go.jp/darwin/cruise/yokosuka/yk06-03/
ASHI, Juichiro, HIRAI, Miho, IMACHI, Hiroyuki, KAZAMA, Hiromi, NUNOURA, Takuro, TAKAI, Ken, TAKAKI, Yoshihiro, 井町, 寛之, 布浦, 拓郎, 平井, 美穂, 芦, 寿一郎, 風間, 宏美, 高井, 研, 高木, 善弘   +13 more
core   +1 more source

Impact of conductive magnetite nanoparticles and anode polarization on glucose fermentation

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 5, Page 1027-1034, May 2026.
Abstract BACKGROUND Electrically conductive materials and electrochemical stimulation strategies are increasingly explored to steer microbial fermentation towards desired metabolic outputs. These approaches also hold remarkable potential to couple wastewater treatment (WWT) to the production of value‐added compounds, in turn enhancing environmental ...
Clara Marandola, Silvia Bolognesi, Matteo Tucci, Marco Resitano, Carolina Cruz Viggi, Sebastià Puig, Marianna Villano   +6 more
wiley   +1 more source

Model based analysis of the methane seeping influence on the acidification in the East Siberian Arctic Shelf waters

Frontiers in Marine Science
A giant Arctic subsea permafrost reservoir of methane (CH4) in different forms (hydrates, free gas) is leaking, likely at an increasing rate under climate warming. This is causing a massive CH4 release from sediments into the water column and atmosphere.
Evgeniy Yakushev, Anfisa Berezina, Anfisa Berezina, Natalia Shakhova, Natalia Shakhova, Natalia Shakhova, Jorn Bruggeman, Philip Wallhead, André Staalstrøm, Matvey Novikov, Shamil Yakubov, Anastasia Zagovenkova, Murat V. Ardelan, Richard Bellerby, Örjan Gustafsson, Igor Semiletov, Igor Semiletov   +16 more
doaj   +1 more source