Results 161 to 170 of about 2,077 (198)

Acidophiles in bioreactor mineral processing

Extremophiles, 2000
Mineral processing in bioreactors has become established in several countries during the past decade with industrial application of iron- and sulfur-oxidizing bacteria to release occluded gold from mineral sulfides. Cobalt extraction in bioreactors has also been commercialized, and development of high-temperature biooxidation of copper sulfides has ...
P R, Norris, N P, Burton, N A, Foulis
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On the acidostability of an acidophilic thermophilic bacterium

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1973
Abstract When an acidophilic thermophilic bacterium, Bacillus sp., is exposed to acid environment (pH 4.0) without glucose, the cell suspension consumes H + . When the cells respire glucose, no consumption of H + by the cell suspension is observed. On addition of respiratory inhibitor or uncoupler to the cell suspension containing glucose, however,
Y, Yamazaki, N, Koyama, Y, Noso
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Physiology of Acidophilic and Alkalophilic Bacteria

1983
Publisher 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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A new acidophilic Scytalidium

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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Acidophilic sulfur disproportionation

Geochimica et Cosmochimica Acta, 2013
Abstract 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, Greg A. Olyphant, Jonathan B. Bell, Adam P. Johnson, Lisa M. Pratt   +4 more
openaire   +1 more source

[Acidophilic soil actinomycetes].

Mikrobiologiia, 2002
A 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).
Iu V, Zakaliukina, G M, Zenova, D G, Zviagintsev   +2 more
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Acidophilic Microorganisms

2022
Pradnya Pralhad Kanekar, Sagar Pralhad Kanekar   +1 more
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Reactive oxygen species formation driven by acidophiles mediated pyrite oxidation and its potential role on 2,4-dichlorophenol transformation

Journal of Hazardous Materials, 2022
Min Gan, Yanhong Wang
exaly  

Acidophilic and Acidotolerant Algae

2001
Many microbes are able to grow at pH values as low as 4, but the majority can also grow at neutral and slightly alkaline pH. Such organisms are usually entitled to be acid-tolerant. This chapter, however, concentrates on acidophilic organisms, which by definition are those microbes which are able to grow at pH values smaller than 3, but are unable to ...
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THE ACIDOPHILIC THIOBACILLI AND OTHER ACIDOPHILIC BACTERIA THAT SHARE THEIR HABITAT

Annual Review of Microbiology, 1984
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