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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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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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THE ACIDOPHILIC THIOBACILLI AND OTHER ACIDOPHILIC BACTERIA THAT SHARE THEIR HABITAT
Annual Review of Microbiology, 1984openaire +2 more sources
Acidophilic and Acidotolerant Algae
2001Many 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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pH homeostasis in acidophiles.
Novartis Foundation symposium, 1999The acidophilic bacteria comprise an environmentally important group that includes pathogens. A fundamental requirement for existence in strongly acidic environments is generation of a large pH gradient (delta pH) to maintain the cytoplasmic pH near neutrality and safeguard the acid-labile cell constituents.
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