Results 81 to 90 of about 3,816 (207)

Syntrophy of bacteria and archaea in the anaerobic catabolism of hydrocarbon contaminants

open access: yesCritical Reviews in Environmental Science and Technology, 2022
The extensive use of organic chemicals has resulted in the widespread distribution of hydrocarbon contaminants (HCs) in many ecosystems on a global scale. Many subterranean ecosystems can rapidly become anaerobic or even methanogenic following hydrocarbon contamination.
Jean Damascene Harindintwali   +9 more
openaire   +1 more source

Growth- and substrate-dependent transcription of formate dehydrogenase and hydrogenase coding genes in Syntrophobacter fumaroxidans and Methanospirillum hungatei [PDF]

open access: yes, 2011
Transcription of genes coding for formate dehydrogenases (fdh genes) and hydrogenases (hyd genes) in Syntrophobacter fumaroxidans and Methanospirillum hungatei was studied following growth under different conditions.
Cheng, X.   +3 more
core   +3 more sources

Spatial Heterogeneity in Methane Biogeochemistry and Prokaryotic Community Structure in Sub‐Arctic Waterbodies in Northern Canada

open access: yesEnvironmental Microbiology, Volume 27, Issue 12, December 2025.
Prokaryotic communities and methane dynamics differed markedly across 16 sub‐Arctic waterbodies. Maximum depth and permafrost thaw emerged as key drivers, with non‐stratified thaw‐affected sites hosting distinct communities and elevated methane fluxes, highlighting their potential role as emerging hotspots of methane emissions.
Arthur Szylit   +8 more
wiley   +1 more source

Multilevel Mechanisms of Magnetic Nanoparticles in Enhancing Dark Fermentative Hydrogen Production: From Pure to Mixed Cultures

open access: yesHydrogen
Dark fermentative hydrogen production is constrained by challenges including low hydrogen yield and operational instability. Magnetic nanoparticles (MNPs) have emerged as promising additives for enhancing biohydrogen production due to their unique ...
Junwei Yan, Zhangzhang Xie
doaj   +1 more source

Mechanism for microbial population collapse in a fluctuating resource environment

open access: yesMolecular Systems Biology, 2017
Managing trade‐offs through gene regulation is believed to confer resilience to a microbial community in a fluctuating resource environment. To investigate this hypothesis, we imposed a fluctuating environment that required the sulfate‐reducer ...
Serdar Turkarslan   +15 more
doaj   +1 more source

Propionate Converting Anaerobic Microbial Communities Enriched from Distinct Biogeochemical Zones of Aarhus Bay, Denmark under Sulfidogenic and Methanogenic Conditions

open access: yesMicroorganisms, 2020
The relationship between predominant physiological types of prokaryotes in marine sediments and propionate degradation through sulfate reduction, fermentation, and methanogenesis was studied in marine sediments.
Derya Ozuolmez   +2 more
doaj   +1 more source

Bacterial community analysis in upflow multilayer anaerobic reactor (UMAR) treating high-solids organic wastes [PDF]

open access: yes, 2017
A novel anaerobic digestion configuration, the upflow multi-layer anaerobic reactor (UMAR), was developed to treat high-solids organic wastes. The UMAR was hypothesized to form multi-layer along depth due to the upflow plug flow; use of a recirculation ...
Cho, Si-Kyung   +5 more
core   +1 more source

Marine Cold Seep ANME‐2/SRB Consortia Produce Their Lipid Biomass From Inorganic Carbon

open access: yesEnvironmental Microbiology, Volume 27, Issue 12, December 2025.
Lipid‐stable isotope probing (SIP) experiments in Astoria Canyon sediments revealed that both ANME‐2 and SRB primarily assimilate dissolved inorganic carbon (DIC or HCO3‐), not methane, into biomass. SRB‐specific lipids showed eightfold higher DI13C‐assimilation than ANME lipids, suggesting SRB directly assimilate DIC, while ANME assimilate an ...
Lennart Stock   +4 more
wiley   +1 more source

Metagenomic Insights Into the Ecology, Taxonomy and Metabolic Capabilities of ‘Candidatus Darwinibacteriales’ Ord. Nov. (Formerly MBA03), a Potential Key Player in Anaerobic Digestion

open access: yesMicrobial Biotechnology, Volume 18, Issue 12, December 2025.
Metagenomic analysis of anaerobic digesters revealed a dominant, uncultured bacterial taxon—MBA03—now proposed as ‘Candidatus Darwinibacteriales’ ord. nov. This newly defined order includes potential syntrophic acetate‐oxidising bacteria (SAOB), suggesting a key role in methane production.
Roser Puchol‐Royo   +9 more
wiley   +1 more source

Comparative proteome analysis of propionate degradation by Syntrophobacter fumaroxidans in pure culture and in coculture with methanogens [PDF]

open access: yes, 2018
Syntrophobacter fumaroxidans is a sulfatereducing bacterium able to grow on propionate axenically or in syntrophic interaction with methanogens or other sulfatereducing bacteria. We performed a proteome analysis of S. fumaroxidans growing with propionate
Bok   +53 more
core   +1 more source

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