Results 171 to 180 of about 10,116 (219)
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Acidophilic microorganisms in remediation of contaminants present in extremely acidic conditions
Bioprocess and Biosystems Engineering, 2023Acidophiles are a group of microorganisms that thrive in acidic environments where pH level is far below the neutral value 7.0. They belong to a larger family called extremophiles, which is a group that thrives in various extreme environmental conditions which are normally inhospitable to other organisms.
Sultana, Razia +2 more
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Biodiversity, metabolism and applications of acidophilic sulfur‐metabolizing microorganisms
Environmental Microbiology, 2012Summary Extremely acidic, sulfur‐rich environments can be natural, such as solfatara fields in geothermal and volcanic areas, or anthropogenic, such as acid mine drainage waters. Many species of acidophilic bacteria and archaea are known to be involved in redox transformations of sulfur, using elemental sulfur and inorganic sulfur ...
Mark, Dopson, D Barrie, Johnson
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Ecophysiology and Application of Acidophilic Sulfur-Reducing Microorganisms
2016Sulfur-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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Metal resistance in acidophilic microorganisms and its significance for biotechnologies
Applied Microbiology and Biotechnology, 2014Extremely acidophilic microorganisms have an optimal pH of
Mark, Dopson, David S, Holmes
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Visualizing Acidophilic Microorganisms in Biofilm Communities Using Acid Stable Fluorescence Dyes
Journal of Fluorescence, 2010Bacteria in acidophilic biofilm communities, i.e. acid streamers and snottites, obtained from a subsurface mine in Königstein were visualized by fluorescence microscopy using four new fluorescent dyes (DY-601XL, V07-04118, V07-04146, DY-613). The pH of the bulk solution in which these bacteria thrive was pH 2.6 to 2.9. The new fluorescent dyes were all
Brockmann, S. +3 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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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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Dissolution kinetics of spent petroleum catalyst using sulfur oxidizing acidophilic microorganisms
Journal of Hazardous Materials, 2009Bioleaching studies of spent petroleum catalyst were carried out using sulfur oxidizing, Acidithiobacillus species. Leaching studies were carried out in two-stage, in the first stage bacteria were grown and culture filtrate was used in the second stage for leaching purpose.
Debaraj, Mishra +4 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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First assessment of acidophilic microorganisms from geothermal Copahue–Caviahue system
Hydrometallurgy, 2010Abstract This work presents an overview of the physicochemical and biological studies focusing on acidophilic microorganisms carried out along Rio Agrio and in different hot springs belonging to the geothermal Copahue–Caviahue system (Neuquen Argentina).
P. Chiacchiarini +3 more
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