Magnetite drives microbial community restructuring and stimulates aceticlastic methanogenesis of type II Methanosarcina in mangrove sediments. [PDF]
MicrobiomeBackground Mangrove wetlands are critical hotspots of methane emissions, yet the role of naturally occurring minerals in shaping their microbial communities and methanogenic processes is poorly understood.
Zhou J, Zhang CJ, Zou D, Gu C, Li M.
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Acetoclastic versus hydrogenotrophic methanogenesis: defining how pH and alkalinity shape acetate metabolism in a haloalkaliphilic methanogenic community for biomethane production. [PDF]
Appl Microbiol BiotechnolIn methanogenic communities, two main pathways drive methanogenesis: acetoclastic methanogenesis, which converts acetate into CH4 and CO2, and hydrogenotrophic methanogenesis, which reduces CO2 with H2 to CH4.
Diniz BC +4 more
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Genus-specific remodeling of carbon and energy metabolism facilitates acetoclastic methanogenesis in <i>Methanosarcina</i> spp. and <i>Methanothrix</i> spp. [PDF]
J BacteriolMethanogenic archaea (methanogens) are microorganisms that obligately produce methane as a byproduct of their energy metabolism. While most methanogens grow on CO2+H2, isolates of the genera Methanosarcina and Methanothrix can use acetate as the sole ...
Downing BE +3 more
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mLife, 2023 Microplastics and nanoplastics are emerging pollutants that substantially influence biological element cycling in natural ecosystems. Plastics are also prevalent in sewage, and they accumulate in waste‐activated sludge (WAS).
Jinting Liu +3 more
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Coexistence of methanogenesis and sulfate reduction in a sulfate-adapted enrichment culture from an oil reservoir. [PDF]
Appl Environ MicrobiolOil reservoirs are complex ecosystems where microorganisms play a vital role in hydrocarbon degradation, mostly with methanogenesis as the terminal electron-accepting process. Especially in offshore oil reservoirs, sulfate-containing seawater is injected
Beilig S +5 more
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Formaldehyde oxidation and methanogenesis [PDF]
Journal of Bacteriology, 1984 Formaldehyde oxidation by cell-free extracts of Methanobacterium thermoautotrophicum was shown to drive methanogenesis from CH3-S-coenzyme M or HCHO under a nonreductive atmosphere of N2. Under N2 when HCHO was the sole source of carbon and reducing equivalents in the reaction, it underwent oxidation and reduction events (disproportionation), the sum ...
J C, Escalante-Semerena, R S, Wolfe
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Methyl fluoride affects methanogenesis rather than community composition of methanogenic archaea in a rice field soil. [PDF]
PLoS ONE, 2013 The metabolic pathways of methane formation vary with environmental conditions, but whether this can also be linked to changes in the active archaeal community structure remains uncertain. Here, we show that the suppression of aceticlastic methanogenesis
Anne Daebeler +2 more
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Microbial methanogenesis in the sulfate-reducing zone of surface sediments traversing the Peruvian margin [PDF]
Biogeosciences, 2016 We studied the concurrence of methanogenesis and sulfate reduction in surface sediments (0–25 cm below sea floor) at six stations (70, 145, 253, 407, 990 and 1024 m) along the Peruvian margin (12° S).
J. Maltby +3 more
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Microorganisms, 2019 There is an interest in controlling rumen methanogenesis as an opportunity to both decrease the emissions of greenhouse gases and improve the energy efficiency of rumen fermentation. However, the effects of inhibiting rumen methanogenesis on fermentation
Emilio M. Ungerfeld +3 more
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Microbiome, 2022 Background Enteric methane emissions from dairy cows are an environmental problem as well as a gross feed energy loss to the animal. Methane is generated in the rumen by methanogenic archaea from hydrogen (H2) + carbon dioxide and from H2 + methanol or ...
Dipti W. Pitta +10 more
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