Results 131 to 140 of about 1,407 (173)
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2000
Acidophilic microorganisms that oxidize mineral sulfides are of obvious biogeochemical significance in their natural habitats and are increasingly being utilized commercially in mineral sulfide processing. However, few studies have focused on their taxonomy and phylogeny, hence there are unresolved questions in these areas.
Brett M. Goebel +2 more
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Acidophilic microorganisms that oxidize mineral sulfides are of obvious biogeochemical significance in their natural habitats and are increasingly being utilized commercially in mineral sulfide processing. However, few studies have focused on their taxonomy and phylogeny, hence there are unresolved questions in these areas.
Brett M. Goebel +2 more
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Canadian Journal of Microbiology, 1974
A brown mold fungus was isolated from acid soil and from acid solutions in an industrial plant and a uranium mine. The only type of spores observed were arthroconidia. The morphology of the fungus is illustrated and it is described as a new species, Scytalidium acidophilum.
L, Sigler, J W, Carmichael
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A brown mold fungus was isolated from acid soil and from acid solutions in an industrial plant and a uranium mine. The only type of spores observed were arthroconidia. The morphology of the fungus is illustrated and it is described as a new species, Scytalidium acidophilum.
L, Sigler, J W, Carmichael
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Acidophilic Soil Actinomycetes
Microbiology, 2002A clear-cut dependence of the distribution of acidophilic actinomycetes on the pH value of soil was established. Acidophilic actinomycetes were found to be present in soils whose pH does not exceed 6.8 (acid forest soils, lowland peaty soil, and ordinary chernozem) and not in slightly alkaline soils (chestnut sodic and alluvial meadow soils).
Yu. V. Zakalyukina +2 more
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Physiology of Acidophilic and Alkalophilic Bacteria
1983Publisher Summary This chapter reviews the physiology of acidophilic and alkalophilic bacteria. The greatest problem with respect to life at low pH values is the maintenance of a cytoplasmic environment far less acidic than the external milieu. Acidophiles could accomplish this in two ways, firstly, by pumping protons outward effectively and/or ...
T A, Krulwich, A A, Guffanti
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Acidophilic sulfur disproportionation
Geochimica et Cosmochimica Acta, 2013Abstract Bacterial disproportionation of elemental sulfur (S 0 ) is a well-studied metabolism and is not previously reported to occur at pH values less than 4.5. In this study, a sediment core from an abandoned-coal-mine-waste deposit in Southwest Indiana revealed sulfur isotope fractionations between S 0 and pyrite (Δ 34 S es-py ) of up to −35 ...
Dalton S. Hardisty +4 more
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Fossilization of Acidophilic Microorganisms
Geomicrobiology Journal, 2010This study examines fossil microorganisms found in iron-rich deposits in an extreme acidic environment, the Tinto River in SW Spain. Both electron microscopy (SEM and TEM) and non-destructive in situ microanalytical techniques (EDS, EMP and XPS) were used to determine the role of permineralization and encrustation in preserving microorganisms forming ...
Virginia Souza-Egipsy +4 more
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Alkaliphiles and Acidophiles in Nanotechnology
2016Acidophiles and alkaliphiles have been exploited for the synthesis of nanoparticles. The nanomaterial synthesizing biocomponents of these microorganisms have an added advantage of providing excellent stability to the nanomaterial being synthesized.
Tiquia-Arashiro, Sonia +1 more
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THE ACIDOPHILIC THIOBACILLI AND OTHER ACIDOPHILIC BACTERIA THAT SHARE THEIR HABITAT
Annual Review of Microbiology, 1984openaire +2 more sources