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20 The Isolation and Study of Acidophilic Microorganisms
2006Publisher Summary This chapter describes the methodologies, conventional as well as molecular, used to characterize the microbial diversity existing in the extreme acidic environment of the Tinto river. These methodologies are adapted from different sources.
Elena González-Toril +3 more
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Applied Biochemistry and Microbiology, 2009
Quantitative and qualitative changes in the content of elements in the solid and liquid phases occurred as the pulp moved through fermenters during biooxidation of an ore flotation concentrate. The association of microorganisms were adapted for utilizing sulfur-containing substrates; however, the rate of their oxidation was insufficient, which led to ...
A A, Revenko +5 more
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Quantitative and qualitative changes in the content of elements in the solid and liquid phases occurred as the pulp moved through fermenters during biooxidation of an ore flotation concentrate. The association of microorganisms were adapted for utilizing sulfur-containing substrates; however, the rate of their oxidation was insufficient, which led to ...
A A, Revenko +5 more
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Physiology and Ecology of Acidophilic Microorganisms
2014Acidophilic microorganisms are distributed throughout the three domains of living organisms. Within the archaeal domain, both extremely acidophilic Euryarchaeota and Crenarchaeota are known, and a number of different bacterial phyla (Firmicutes, Actinobacteria, and Proteobacteria [α, β, and γ subphyla], Nitrospira, and Aquifex) also contain extreme ...
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Extreme zinc tolerance in acidophilic microorganisms from the bacterial and archaeal domains
Extremophiles, 2012Zinc 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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Microbiology, 2012
The main representatives of acidophilic chemolithotrophs oxidizing sulfide minerals, ferrous iron, elemental sulfur, and reduced sulfur compounds and forming microbial communities in the natural and technogenic ecosystems with low pH values and high concentrations of heavy metal ions are listed.
T. F. Kondrat’eva +7 more
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The main representatives of acidophilic chemolithotrophs oxidizing sulfide minerals, ferrous iron, elemental sulfur, and reduced sulfur compounds and forming microbial communities in the natural and technogenic ecosystems with low pH values and high concentrations of heavy metal ions are listed.
T. F. Kondrat’eva +7 more
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Influence of Calcium Nitrate on Microbial Community Structure of Acidophilic Microorganisms
Advanced Materials Research, 2014The influence of different concentrations of calcium nitrate on the growth and activity of acidophilic microorganisms were studied and the microbial community structures were compared by 16S rRNA gene clone library analysis. The addition of Ca (NO3)2 has a certain effect on the solution potential, and that the time needed to reach the steady potential ...
Wen Juan Li +5 more
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Bioleaching and interrelated acidophilic microorganisms from río tinto, Spain
Geomicrobiology Journal, 1993An ecological study of the microbial communities of the Tinto River showed a high level of diversity, which was not expected due to the extreme conditions of the habitat: pH around 2 and high levels of metallic cations. The physical and chemical parameters of the river were measured and could be correlated with the microbial communities identified ...
A. I. López‐Archtlla +2 more
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The Biofilm Lifestyle of Acidophilic Metal/Sulfur-Oxidizing Microorganisms
2016Microrganisms are well known for their unique ability to thrive in different lifestyles (e.g. planktonic or sessile) and environments, even within extreme ones. The most common and widespread lifestyle of microbes on earth is in form of biofilms, associated colonies of microorganisms embedded in a matrix of extracellular polymeric substances (EPS ...
Ruiyong Zhang +4 more
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Arsenic removal by acidophilic iron-oxidizing microorganisms: Moderate and extreme thermophiles
Journal of Hazardous MaterialsThe treatment of arsenic-rich effluents poses a significant challenge for the mining industry. Conventional chemical methods often create unwanted byproducts and unspecific reactions. Thus, the problem of arsenic treatment in these effluents is not completely resolved.
Fernando Vera-Espíndola +3 more
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Resistance of Moderately Thermophilic Acidophilic Microorganisms to Ferric Iron Ions
Solid State Phenomena, 2017Resistance of microorganisms predominating in biohydrometallurgical processes including bacteria of the genus Sulfobaсillus and archaea of the genus Acidiplasma to ferric iron ions was studied. Capabilities of the strains for growth and ferrous iron oxidation in the media containing high concentrations of ferric iron ions (of 250 to 1000 mM) were ...
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