Results 71 to 80 of about 17,681 (214)

Metabolic versatility in methanogens

Current Opinion in Biotechnology, 2014
Methanogenesis is an anaerobic metabolism responsible for the generation of >90% of the methane formed on Earth today, with important implications for fuels production and global warming. Although methanogenic Archaea have been cultured for over 70 years, key insights regarding electron flow and energy conservation in methanogenesis have only recently ...
Costa, Kyle C, Leigh, John A
openaire   +2 more sources

Electrobiocorrosion by microbes without outer‐surface cytochromes

mLife
Anaerobic microbial corrosion of iron‐containing metals causes extensive economic damage. Some microbes are capable of direct metal‐to‐microbe electron transfer (electrobiocorrosion), but the prevalence of electrobiocorrosion among diverse methanogens ...
Dawn E. Holmes, Trevor L. Woodard, Jessica A. Smith, Florin Musat, Derek R. Lovley   +4 more
doaj   +1 more source

Effect of Moderate Heat on TCE Reductive Dechlorination Rates in Groundwater

Groundwater Monitoring &Remediation, EarlyView.
Abstract Low‐temperature heating (in the mesophilic range of ~15 to 40 °C) of contaminated aquifers offers the prospect of increasing the rates for biotic and abiotic treatment of volatile organic compounds. Thermal In Situ Sustainable Remediation (TISR®) is one of the approaches available to implement low temperature heating.
David L. Freedman, Nicholas Cotter, Craig Divine, Shandra Justicia‐Leone   +3 more
wiley   +1 more source

How Plants May Maintain Protein Homeostasis Under Rising Atmospheric CO2

Plant, Cell &Environment, EarlyView.
ABSTRACT Vascular plants may employ several physiological mechanisms to stabilize their protein contents as atmospheric CO2 concentrations change over a day, year, decade, or century. One mechanism is that plants may rely more on soil ammonium as their nitrogen source when CO2 increases.
Arnold J. Bloom, Xiaoxiao Shi, Nathan M. Hannon   +2 more
wiley   +1 more source

Structural Analysis of a Nitrogenase Iron Protein from Methanosarcina acetivorans: Implications for CO₂ Capture by a Surface-Exposed [Fe₄S₄] Cluster

mBio, 2019
Nitrogenase iron (Fe) proteins reduce CO2 to CO and/or hydrocarbons under ambient conditions. Here, we report a 2.4-Å crystal structure of the Fe protein from Methanosarcina acetivorans (MaNifH), which is generated in the presence of a reductant ...
Lee A. Rettberg, Wonchull Kang, Martin T. Stiebritz, Caleb J. Hiller, Chi Chung Lee, Jasper Liedtke, Markus W. Ribbe, Yilin Hu   +7 more
doaj   +1 more source

Holocene variations in peatland methane cycling associated with the Asian summer monsoon system [PDF]

, 2014
Atmospheric methane concentrations decreased during the early to middle Holocene; however, the governing mechanisms remain controversial. Although it has been suggested that the mid-Holocene minimum methane emissions are associated with hydrological ...
Cheng, Peng, Liu, Zhao, Pancost, Richard D., Singarayer, Joy, Valdes, Paul J., Yu, Xuefeng, Zheng, Yanhong   +6 more
core   +1 more source

Evaluation of ammonium removal from sludge return liquor using a pilot‐scale microbial electrolysis cell

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 3, Page 638-648, March 2026.
Abstract BACKGROUND Microbial electrochemical technologies (METs) enable separation of ammonium from nutrient‐rich waste streams, such as sludge return liquors, using bioanodes that consume organic matter to generate electrical current. Quantification of ammonia recovery performance in pilot scale METs treating real wastes under industrially relevant ...
Samuel David Settle, Richard Law, Elizabeth Susan Heidrich   +2 more
wiley   +1 more source

Effects of Phloroglucinol on In Vitro Methanogenesis, Rumen Fermentation, and Microbial Population Density

Tropical Animal Science Journal, 2019
This study investigated the effect of phloroglucinol (1,3,5-trihydroxybenzene) supplementation alone on methane production, rumen fermentation profiles, and microbial population structure of mixed in vitro cultures.
K. A. Sarwono, M. Kondo, T. Ban-Tokuda, A. Jayanegara, H. Matsui   +4 more
doaj   +1 more source

Early‐Life Respiratory Emissions of CO₂, CH₄, and N₂O in Pre‐Weaned Dairy‐Bred Calves

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT Greenhouse gas (GHG) emissions from livestock are a major contributor to climate change, with cattle known to be the principal contributor through enteric fermentation, manure management, and metabolic processes. This study investigates the emission rates of CO₂, CH₄, and N₂O in pre‐weaned calves aged 12 to 86 days, focusing on the ...
Ben Langford, Johanna M. C. Brans, Claire Broadbent, Marie Haskell, Laura Nicoll, Neil J. Mullinger, Carol‐Anne Duthie   +6 more
wiley   +1 more source

The Sheaths of Methanospirillum Are Made of a New Type of Amyloid Protein

Frontiers in Microbiology, 2018
The genera Methanospirillum and Methanosaeta contain species of anaerobic archaea that grow and divide within proteinaceous tubular sheaths that protect them from environmental stressors.
Line Friis Bakmann Christensen, Lonnie Maria Hansen, Kai Finster, Gunna Christiansen, Per Halkjær Nielsen, Daniel Erik Otzen, Morten Simonsen Dueholm   +6 more
doaj   +1 more source