Mechanism of elemental sulfur oxidation by acidophilic bacteria

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F02%3A00006462" target="_blank" >RIV/00216224:14310/02:00006462 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Mechanism of elemental sulfur oxidation by acidophilic bacteria
Original language description
We observed sulfur oxidation by both free and adsorbed bacteria. A dominant oxidation role for free bacteria was suggested based on kinetic observations in both growing and non-growing cultures. The linear phase of sulfur oxidation was related to sulfurlimitation in agreement with the Monod equation. The active growth phase always followed adsorption of bacteria on sulfur; however, the special metabolic role of adsorbed bacteria was unclear. The presence of the pigment iodinin, an A. ferrooxidans culture metabolite, was demonstrated after growth of bacteria on elemental sulfur. Although its physiological function is unknown, it is possible that sites on the cell surface are covered with this metabolite, thereby facilitating hydrophobic interactions between cell surfaces and sulfur particles. Such an interaction would be important for the adsorption of A. ferrooxidans onto sulfur surfaces, in addition to other possible adsorption mechanisms. The role of adsorbed bacteria may be to solu
Czech name
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Czech description
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Project
<a href="/en/project/GA525%2F00%2F0785" target="_blank" >GA525/00/0785: Acidification processes in sulphide wastes</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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