Mechanism of elemental sulfur oxidation by acidophilic bacteria

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanism of elemental sulfur oxidation by acidophilic bacteria

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Mechanism of elemental sulfur oxidation by acidophilic bacteria

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

EI - Biotechnologie a bionika

OECD FORD obor

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Projekt

<a href="/cs/project/GA525%2F00%2F0785" target="_blank" >GA525/00/0785: Acidifikační procesy v sulfidových odpadech</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Zborník, XVIII. biochemický zjazd

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

276

Název nakladatele

SAV

Místo vydání

Bratislava

Místo konání akce

10. - 13. 9. 2002

Datum konání akce

1. 1. 2002

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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