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Tetrathionate hydrolase from the acidophilic microorganisms [PDF]
Frontiers in MicrobiologyTetrathionate hydrolase (TTH) is a unique enzyme found in acidophilic sulfur-oxidizing microorganisms, such as bacteria and archaea. This enzyme catalyzes the hydrolysis of tetrathionate to thiosulfate, elemental sulfur, and sulfate.
Tadayoshi Kanao
exaly +8 more sources
The Ecology of Acidophilic Microorganisms in the Corroding Concrete Sewer Environment [PDF]
Frontiers in Microbiology, 2017 Concrete corrosion is one of the most significant problems affecting valuable sewer infrastructure on a global scale. This problem occurs in the aerobic zone of the sewer, where a layer of surface corrosion develops on the exposed concrete and the ...
Guangming Jiang +3 more
doaj +8 more sources
Fluoride toxicity and mitigation strategies in acidophilic bioleaching microorganisms [PDF]
Applied Microbiology and BiotechnologyBioleaching is an established process for sulfidic ores and is increasingly applied to the recycling of industrial residues. However, unlike ores, many residues like sludge contain inhibitory elements, among which fluoride poses a major challenge due to ...
Mareike Thea Fritze, Sabrina Hedrich
doaj +5 more sources
Enhanced Leaching of Lepidolite by Acidophilic Microorganisms Under Mechanical Activation [PDF]
MicroorganismsIn recent years, mechanical activation technology has been extensively applied as a pretreatment process to increase the leaching efficiency in hydrometallurgical mineral processing.
Jingna Li +9 more
doaj +4 more sources
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.
europepmc +5 more sources
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
europepmc +3 more sources
Automated Microscopic Analysis of Metal Sulfide Colonization by Acidophilic Microorganisms. [PDF]
Appl Environ Microbiol, 2018 The presented method for the assessment of mineral colonization allows accurate relative comparisons of the microbial colonization of metal sulfide concentrate particles in a time-resolved manner. Quantitative assessment of the mineral colonization development is important for the compilation of improved mathematical models for metal ...
Bellenberg S +11 more
europepmc +8 more sources
Electrochemical Characteristics of the Oxidation of Sulfur- and Iron-Containing Compounds by Acidophilic Microorganisms. [PDF]
Indian J Microbiol, 2022 The electrochemical features of the interactions of sulfur- and iron-containing compounds (ferrous sulfate, elemental sulfur, pyrite tailings, cysteine, sodium thiosulfate) with a model acidophilic consortium, including the genera Leptospirillum, Sulfobacillus, Acidithiobacillus, Ferroplasma, and Acidiplasma, were studied.
Kashevskii AV +10 more
europepmc +3 more sources
Biodiversity and ecology of acidophilic microorganisms [PDF]
FEMS Microbiology Ecology, 1998 Microbial life in extremely low pH (6 3) natural and man-made environments may be considerably diverse. Prokaryotic acidophiles (eubacteria and archaea) have been the focus of much of the research activity in this area, primarily because of the importance of these microorganisms in biotechnology (predominantly the commercial biological processing of ...
exaly +2 more sources
Iron Meteorites Can Support the Growth of Acidophilic Chemolithoautotrophic Microorganisms [PDF]
Astrobiology, 2005 Chemolithoautotrophy based on reduced inorganic minerals is considered a primitive energy transduction system. Evidence that a high number of meteorites crashed into the planet during the early period of Earth history led us to test the ability of iron-oxidizing bacteria to grow using iron meteorites as their source of energy. Here we report the growth
Elena González-Toril +2 more
exaly +4 more sources