Activated Carbon and Syntrophy Accelerate the Corrosion of Stainless Steel Under Strict Anaerobic Conditions by Methanosarcina barkeri [PDF]
MicroorganismsPrevious studies have demonstrated that some methanogens can directly accept electrons from Fe(0), leading to metal corrosion under strict anaerobic conditions. However, there are few reports on the research of anaerobic iron corrosion by some substances
Chunyu Zhou +6 more
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Responses of Methanosarcina barkeri to acetate stress [PDF]
Biotechnology for Biofuels, 2019 Background Anaerobic digestion of easily degradable biowaste can lead to the accumulation of volatile fatty acids, which will cause environmental stress to the sensitive methanogens consequently. The metabolic characteristics of methanogens under acetate
Pinjing He +5 more
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NanoFe3O4 as Solid Electron Shuttles to Accelerate Acetotrophic Methanogenesis by Methanosarcina barkeri [PDF]
Frontiers in Microbiology, 2019 Magnetite nanoparticles (nanoFe3O4) have been reported to facilitate direct interspecies electron transfer (DIET) between syntrophic bacteria and methanogens thereby improving syntrophic methanogenesis.
Li Fu +7 more
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The reduction of environmentally abundant iron oxides by the methanogen Methanosarcina barkeri [PDF]
Frontiers in Microbiology, 2023 Microbial dissimilatory iron reduction is a fundamental respiratory process that began early in evolution and is performed in diverse habitats including aquatic anoxic sediments. In many of these sediments microbial iron reduction is not only observed in
Efrat Eliani-Russak +5 more
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Hydrogenotrophic methanogenesis at 7–12 mbar by Methanosarcina barkeri under simulated martian atmospheric conditions [PDF]
Scientific ReportsMars, with its ancient history of long-lived habitable environments, continues to captivate researchers exploring the potential for extant life.
Rachel L. Harris, Andrew C. Schuerger
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The Radical SAM Heme Synthase AhbD from Methanosarcina barkeri Contains Two Auxiliary [4Fe-4S] Clusters [PDF]
Biomolecules, 2023 In archaea and sulfate-reducing bacteria, heme is synthesized via the siroheme-dependent pathway. The last step of this route is catalyzed by the Radical SAM enzyme AhbD and consists of the conversion of iron-coproporphyrin III into heme. AhbD belongs to
Isabelle Fix +3 more
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Transcriptional response to prolonged perchlorate exposure in the methanogen Methanosarcina barkeri and implications for Martian habitability [PDF]
Scientific Reports, 2021 Observations of trace methane (CH4) in the Martian atmosphere are significant to the astrobiology community given the overwhelming contribution of biological methanogenesis to atmospheric CH4 on Earth.
Rachel L. Harris +5 more
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A shift between mineral and nonmineral sources of iron and sulfur causes proteome-wide changes in Methanosarcina barkeri [PDF]
Microbiology SpectrumIron (Fe) and sulfur (S) are required elements for life, and changes in their availability can limit the ecological distribution and function of microorganisms. In anoxic environments, soluble Fe typically exists as ferrous iron [Fe(II)] and S as sulfide
Hunter Fausset +10 more
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Efficient Photoelectron Capture by Ni Decoration in Methanosarcina barkeri-CdS Biohybrids for Enhanced Photocatalytic CO2-to-CH4 Conversion [PDF]
iScience, 2020 Summary: Semi-artificial photosynthesis (biohybrid) provides an intriguing opportunity for efficient CO2-to-CH4 conversion. However, creating a desirable semiconductor in biohybrids remains a great challenge. Here, by doping Ni into CdS nanoparticles, we
Jie Ye +6 more
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Methane-Linked Mechanisms of Electron Uptake from Cathodes by
mBio, 2019 The Methanosarcinales, a lineage of cytochrome-containing methanogens, have recently been proposed to participate in direct extracellular electron transfer interactions within syntrophic communities.
Annette R. Rowe +6 more
doaj +3 more sources