Ferric Iron Reduction in Extreme Acidophiles [PDF]
Frontiers in Microbiology, 2022 Biochemical processes are a key element of natural cycles occurring in the environment and enabling life on earth. With regard to microbially catalyzed iron transformation, research predominantly has focused on iron oxidation in acidophiles, whereas iron
Luise Malik, Sabrina Hedrich
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Limitations of microbial iron reduction under extreme conditions. [PDF]
FEMS Microbiol Rev, 2022 Microbial iron reduction is a widespread and ancient metabolism on Earth, and may plausibly support microbial life on Mars and beyond. Yet, the extreme limits of this metabolism are yet to be defined.
Nixon SL, Bonsall E, Cockell CS.
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Aerobic methanotrophy increases the net iron reduction in methanogenic lake sediments [PDF]
Frontiers in Microbiology, 2023 In methane (CH4) generating sediments, methane oxidation coupled with iron reduction was suggested to be catalyzed by archaea and bacterial methanotrophs of the order Methylococcales. However, the co-existence of these aerobic and anaerobic microbes, the
Hanni Vigderovich +7 more
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Impact of iron reduction on the metabolism of Clostridium acetobutylicum. [PDF]
Environ Microbiol, 2019 Summary Iron is essential for most living organisms. In addition, its biogeochemical cycling influences important processes in the geosphere (e.g., the mobilization or immobilization of trace elements and contaminants). The reduction of Fe(III) to Fe(II)
List C +4 more
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Dual Role of Humic Substances As Electron Donor and Shuttle for Dissimilatory Iron Reduction. [PDF]
Environ Sci Technol, 2018 Dissimilatory iron-reducing bacteria (DIRB) are known to use humic substances (HS) as electron shuttles for dissimilatory iron reduction (DIR) by transferring electrons to HS-quinone moieties, which in turn rapidly reduce Fe(III) oxides.
Stern N +5 more
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Biogenic Sulfide-Mediated Iron Reduction at Low pH [PDF]
MicroorganismsAcid mine drainage (AMD) pollutes natural waters, but some impacted systems show natural attenuation. We sought to identify the biogeochemical mechanisms responsible for the natural attenuation of AMD.
Caryl Ann Becerra +3 more
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CO2/HCO3− Accelerates Iron Reduction through Phenolic Compounds [PDF]
mBio, 2020 Iron is a vital mineral for almost all living organisms and has a pivotal role in central metabolism. Despite its great abundance on earth, the accessibility for microorganisms is often limited, because poorly soluble ferric iron (Fe3+) is the ...
Felix Müller +5 more
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Bacterial iron reduction and biogenic mineral formation for the stabilisation of corroded iron objects. [PDF]
Sci Rep, 2018 Exploiting bacterial metabolism for the stabilisation of corroded iron artefacts is a promising alternative to conventional conservation-restoration methods.
Kooli WM +6 more
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Biochar Addition Increases the Rates of Dissimilatory Iron Reduction and Methanogenesis in Ferrihydrite Enrichments. [PDF]
Front Microbiol, 2017 Biochar contains quinones and aromatic structures that facilitate extracellular electron transfer between microbial cells and insoluble minerals. In this study, granulated biochar (1.2–2 mm) and powdered biochar (
Zhou GW +7 more
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Decoupling microbial iron reduction from anoxic microsite formation in oxic sediments: a microscale investigation through microfluidic models [PDF]
Frontiers in MicrobiologyIron (Fe) reduction is one of the oldest microbial processes on Earth. After the atmosphere and ocean became oxygenated, this anaerobic process was relegated to niche anoxic environments.
Giulia Ceriotti +3 more
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