Results 91 to 100 of about 34,823 (216)

Radial oxygen loss, rhizospheric methane oxidation and methane emissions from rice roots

open access: yesNew Phytologist, Volume 252, Issue 3, Page 1035-1049, November 2026.
Longitudinal variation in rice (Oryza sativa) root traits affecting the bidirectional diffusion of O2 and CH4. Summary Methane (CH4) produced in flooded paddy soils is emitted by passive diffusion, by ebullition and by diffusion through the rice (Oryza sativa) plant.
Juan de la Cruz Jiménez   +8 more
wiley   +1 more source

Phylogenetic analysis of methanogens from the bovine rumen [PDF]

open access: yes, 2001
Background Interest in methanogens from ruminants has resulted from the role of methane in global warming and from the fact that cattle typically lose 6 % of ingested energy as methane.
Forster Robert J   +2 more
core   +1 more source

Diversity and Functional Analysis of the FeMo-Cofactor Maturase NifB

open access: yesFrontiers in Plant Science, 2017
One of the main hurdles to engineer nitrogenase in a non-diazotrophic host is achieving NifB activity. NifB is an extremely unstable and oxygen sensitive protein that catalyzes a low-potential SAM-radical dependent reaction.
Simon Arragain   +5 more
doaj   +1 more source

Programming Gut Microbiome Function Through Cross‐Feeding: From Ecological Mechanisms to Live Biotherapeutics

open access: yesAdvanced Science, Volume 13, Issue 55, 5 October 2026.
This graphical abstract presents gut microbial cross‐feeding through a Mechanism–Technology–Application framework. It summarizes major resource‐transfer modes, the experimental and computational tools used to establish causality, and potential interventions involving dietary substrates, live biotherapeutic products, and engineered microbes.
Chuankai Sun   +7 more
wiley   +1 more source

Ammonia inhibition on thermophilic aceticlastic methanogens

open access: yes, 2002
The inhibition effects of total ammonia nitrogen (TAN) on aceticlastic methanogenic activity using biomass from thermophilic anaerobic reactors were investigated in this study.
T. Liu, S. Sung
core   +1 more source

Biochemical Evidence for formate transfer in syntrophic propionate oxidizing cocultures of Syntrophobacter fumaroxidans and Methanospirillum hungatei [PDF]

open access: yes, 2002
The hydrogenase and formate dehydrogenase levels in Syntrophobacter fumaroxidans and Methanospirillum hungatei were studied in syntrophic propionate-oxidizing cultures and compared to the levels in axenic cultures of both organisms.
Bok, F.A.M., de   +3 more
core   +1 more source

Methanogens dominate methanotrophs and act as a methane source in aquaculture pond sediments

open access: yesEcotoxicology and Environmental Safety
Aquaculture pond sediments act as hotspots for methane (CH4) emissions; however, knowledge gaps on the regulation of microorganisms hinder our further understanding of methane dynamics in aquaculture pond sediment.
Hongda Liu   +8 more
doaj   +1 more source

CO2 conversion to methane and biomass in obligate methylotrophic methanogens in marine sediments

open access: yesThe ISME Journal, 2019
Methyl substrates are important compounds for methanogenesis in marine sediments but diversity and carbon utilization by methylotrophic methanogenic archaea have not been clarified.
Xiuran Yin   +8 more
semanticscholar   +1 more source

Patterns and Drivers of Mercury Accumulation in Croplands, a Meta‐Analysis

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Mercury (Hg) is a potent neurotoxin that poses risks to human and environmental health, particularly in regions influenced by anthropogenic Hg emissions. Although Hg emissions have declined across North America and Europe following regulatory controls and phase‐outs, emissions remain elevated in some regions due to activities such as artisanal
Jenna M. Hynes   +2 more
wiley   +1 more source

Anoxic Biodegradation of Isosaccharinic Acids at Alkaline pH by Natural Microbial Communities [PDF]

open access: yes, 2015
One design concept for the long-term management of the UK’s intermediate level radioactive wastes (ILW) is disposal to a cementitious geological disposal facility (GDF).
Pan, Chongle   +54 more
core   +2 more sources

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