Stoichiometry of bacterial anaerobic oxidation of elemental sulfur by ferric iron

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Authors	KUČERA Jiří ZEMAN Josef MANDL Martin ČERNÁ Hana
Year of publication	2012
Type	Article in Periodical
Magazine / Source	Antonie van Leeuwenhoek International Journal of General and Molecular Microbiology
MU Faculty or unit	Faculty of Science
Citation
Doi	http://dx.doi.org/10.1007/s10482-012-9699-x
Field	Microbiology, virology
Keywords	Acidithiobacillus ferrooxidans; Anaerobic sulfur oxidation; Ferric iron reduction; Reaction modelling; Stoichiometry
Description	The conventional stoichiometry of the oxidation of elemental sulfur by ferric iron in Acidithiobacillus ferrooxidans was not in agreement with our experimental data in terms of ferrous iron and proton formation. Reaction modelling under the actual conditions of bacterial activity resulted in a different stoichiometry, where additional iron species participate in the process to affect the number of released protons. The suggested reaction equation may more accurrately predict the intensity of environmental acidification during the anaerobic bioprocess.
Related projects:	Proteins in metabolism and interaction of organisms with the environment Activity of acidophilic sulfur-oxidizing bacteria under aerobic and anaerobic conditions