Results 21 to 30 of about 13,024 (137)

Organic matter supply and bacterial community composition predict methanogenesis rates in temperate lake sediments

Limnology and Oceanography Letters, 2019
The objective of our study was to identify environmental conditions that structure lake sediment microbial communities and determine whether community composition explained inter‐lake variation in potential methanogenesis rates.
Brittni L. Bertolet, William E. West, David W. Armitage, Stuart E. Jones   +3 more
doaj   +1 more source

Vertical profiles of sediment methanogenic potential and communities in two plateau freshwater lakes [PDF]

Biogeosciences, 2017
Microbial methanogenesis in sediment plays a crucial role in CH4 emission from freshwater lake ecosystems. However, knowledge of the layer-depth-related changes of methanogen community structure and activities in freshwater lake sediment is still limited.
Y. Yang, N. Li, W. Wang, B. Li, S. Xie, Y. Liu   +5 more
doaj   +1 more source

A multienzyme complex channels substrates and electrons through acetyl-CoA and methane biosynthesis pathways in Methanosarcina.

PLoS ONE, 2014
Multienzyme complexes catalyze important metabolic reactions in many organisms, but little is known about the complexes involved in biological methane production (methanogenesis). A crosslinking-mass spectrometry (XL-MS) strategy was employed to identify
Dillon J Lieber, Jennifer Catlett, Nandu Madayiputhiya, Renu Nandakumar, Madeline M Lopez, William W Metcalf, Nicole R Buan   +6 more
doaj   +1 more source

Inhibiting Methanogenesis Stimulated de novo Synthesis of Microbial Amino Acids in Mixed Rumen Batch Cultures Growing on Starch but not on Cellulose

Microorganisms, 2020
Ameliorating methane (CH4) emissions from ruminants would have environmental benefits, but it is necessary to redirect metabolic hydrogen ([H]) toward useful sinks to also benefit animal productivity.
Emilio M. Ungerfeld, M. Fernanda Aedo, Camila Muñoz, Natalie L. Urrutia, Emilio D. Martínez, Marcelo Saldivia   +5 more
doaj   +1 more source

Diversity of prokaryotic microorganisms in alkaline saline soil of the Qarhan Salt Lake area in the Qinghai–Tibet Plateau

Scientific Reports, 2022
The composition of microbial communities varies considerably across ecological environments, particularly in extreme environments, where unique microorganisms are typically used as the indicators of environmental conditions.
Yaqiong Wang, Guoyuan Bao
doaj   +1 more source

Shifts in metabolic hydrogen sinks in the methanogenesis-inhibited ruminal fermentation: a meta-analysis

Frontiers in Microbiology, 2015
Maximizing the flow of metabolic hydrogen ([H]) in the rumen away from CH4 and towards volatile fatty acids (VFA) would increase the efficiency of ruminant production and decrease its environmental impact. The objectives of this meta-analysis were: i) To
Emilio M. Ungerfeld
doaj   +1 more source

Mer overexpression in Methanosarcina acetivorans affects growth and methanogenesis during substrate adaptation

Applied and Environmental Microbiology
Evidence suggests that multienzyme complexes are involved in biological methane production (methanogenesis), although the composition of the Wolfe Cycle methanogenesis complexes may vary between diverse methanoarchaeal taxa ...
Darla Brennan, Dillon Lieber, Mary Walter, Morgan Price, Nicole R. Buan   +4 more
doaj   +1 more source

Review: Biological consequences of the inhibition of rumen methanogenesis

Animal
Decreasing enteric CH4 emissions from ruminants is important for containing global warming to 1.5 °C and avoid the worst consequences of climate change.
E.M. Ungerfeld, D. Pitta
doaj   +1 more source

A Metagenome‐Assembled Genome Catalog From the Global Ruminant Microbiomes

Animal Research and One Health, EarlyView.
The Ruminant Gastrointestinal MAG Catalog (RGMC) is a comprehensive global resource offering 40,812 strain‐level genomes across 53 bacterial and 4 archaeal classes. It greatly surpasses prior efforts in scale and diversity, serving as an essential foundation for research in ruminant nutrition, microbial function, and methane mitigation.
Shizhe Zhang, Qiushuang Li, Bingzi Ouyang, Wenxing Wang, Xiang Zhou, Xiumin Zhang, Rong Wang, Zhiliang Tan, Min Wang   +8 more
wiley   +1 more source

H₂-Independent Growth of the Hydrogenotrophic Methanogen Methanococcus maripaludis

mBio, 2013
Hydrogenotrophic methanogenic Archaea require reduced ferredoxin as an anaplerotic source of electrons for methanogenesis. H2 oxidation by the hydrogenase Eha provides these electrons, consistent with an H2 requirement for growth.
Kyle C. Costa, Thomas J. Lie, Michael A. Jacobs, John A. Leigh   +3 more
doaj   +1 more source