Results 11 to 20 of about 306,103 (194)
Pyrrhotite Biooxidation by Moderately Thermophilic Acidophilic Microorganisms [PDF]
Microbiology, 2020 The goal of the present work was to study the oxidation of sulfide mineral pyrrhotite by members of microbial groups predominant in biohydrometallurgical processes (mixotrophic iron- and sulfur-oxidizing bacterium Sulfobacillus thermosulfidooxidans strain VKMV 1269T, autotrophic sulfur-oxidizing bacterium Acidithiobacillus caldus strain MBC-1, and ...
Yu. A. Elkina +3 more
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Metal resistance in acidophilic microorganisms and its significance for biotechnologies
Applied Microbiology and Biotechnology, 2014 Extremely acidophilic microorganisms have an optimal pH of
Mark, Dopson, David S, Holmes
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Microorganisms, 2020 Reactive pyritic mine tailings can be populated by chemolithotrophic prokaryotes that enhance the solubilities of many metals, though iron-reducing heterotrophic microorganisms can inhibit the environmental risk posed by tailings by promoting processes ...
Ivan Nancucheo, D. Barrie Johnson
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Distribution of Acidophilic Microorganisms in Natural and Man-made Acidic Environments [PDF]
Current Issues in Molecular Biology, 2016 Acidophilic microorganisms can thrive in both natural and man-made environments. Natural acidic environments comprise hydrothermal sites on land or in the deep sea, cave systems, acid sulfate soils and acidic fens, as well as naturally exposed ore deposits (gossans).
Sabrina, Hedrich, Axel, Schippers
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Journal of Pure and Applied Microbiology, 2018 The need of extremophile enzymes is increased. Such enzymes had found their utility in bio-industries such as leather, food, animal feed, textiles, and in bioconversions and bioremediation.
Hasnaa R. Temsaah +4 more
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Heavy Metal Resistance Strategies of Acidophilic Bacteria and Their Acquisition: Importance for Biomining and Bioremediation [PDF]
Biological Research, 2013 Microbial solubilizing of metals in acid environments is successfully used in industrial bioleaching of ores or biomining to extract metals such as copper, gold, uranium and others.
Claudio A Navarro +2 more
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Mechanisms of bioleaching: iron and sulfur oxidation by acidophilic microorganisms. [PDF]
Essays Biochem, 2023 Abstract Bioleaching offers a low-input method of extracting valuable metals from sulfide minerals, which works by exploiting the sulfur and iron metabolisms of microorganisms to break down the ore. Bioleaching microbes generate energy by oxidising iron and/or sulfur, consequently generating oxidants that attack sulfide mineral surfaces,
Jones S, Santini JM.
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Ecophysiology and Application of Acidophilic Sulfur-Reducing Microorganisms
, 2016 Sulfur-reducing prokaryotes play an important role in the sulfur biogeochemical cycle, especially in deep-sea vents, hot springs and other extreme environments. The reduction of elemental sulfur is not very favorable thermodynamically, but still provides enough energy for growth of microorganisms.
Florentino, Anna P. +3 more
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Insights into Systems for Iron-Sulfur Cluster Biosynthesis in Acidophilic Microorganisms. [PDF]
J Microbiol Biotechnol, 2022 Fe-S clusters are versatile and essential cofactors that participate in multiple and fundamental biological processes. In Escherichia coli, the biogenesis of these cofactors requires either the housekeeping Isc pathway, or the stress-induced Suf pathway which plays a general role under conditions of oxidative stress or iron limitation.
Myriam P +6 more
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Extreme zinc tolerance in acidophilic microorganisms from the bacterial and archaeal domains
Extremophiles, 2012 Zinc can occur in extremely high concentrations in acidic, heavy metal polluted environments inhabited by acidophilic prokaryotes. Although these organisms are able to thrive in such severely contaminated ecosystems their resistance mechanisms have not been well studied.
Stefanie, Mangold +4 more
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