Arsenic toxicity in bacterial oxidation of elemental sulfur

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Authors	MANDL Martin POKORNÁ Blanka GAVLASOVÁ Pavla HELÁNOVÁ Šárka BOUCHAL Pavel JANICZEK Oldřich HALLBERG Kevin
Year of publication	2004
Type	Article in Proceedings
Conference	Biometals 2004
MU Faculty or unit	Faculty of Science
Citation
Field	Biochemistry
Keywords	Arsenic toxicity; sulfur oxidation
Description	Arsenic ions are released in the environment during bacterial arsenopyrite oxidation in sulfide wastes or biohydrometallurgy. Elemental sulfur can be formed as an intermediate during arsenopyrite oxidation. Its further biooxidation to sulfuric acid is inhibited by arsenic ions. The arsenic effects on bacterial iron oxidation have been previously described. This study investigated the inhibitory effects of arsenic on the oxidation of elemental sulfur by Acidithiobacillus ferrooxidans.
Related projects:	Bacterial oxidation of inorganic sulfur substances, environmental aspects