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Mariia Boretska
Mariia Boretska
Department of General and Soil Microbiology, Zabolotny Institute of Microbiology and Virology of the NAS of Ukraine,
Ukraine
Publications
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Research Letter
Change of Extracellular Polymeric Substances Composition of Thiobacillus thioparus in Presence of Sulfur and Steel
Author(s): Mariia Boretska, Sören Bellenberg, Olena Moshynets, Ianina Pokholenko and Wolfgang SandMariia Boretska, Sören Bellenberg, Olena Moshynets, Ianina Pokholenko and Wolfgang Sand
The process of microbially influenced corrosion (MIC) of metallic underground constructions is often related with biofilm formation and metabolic activity of sulfur cycle bacteria. The extracellular polymeric substances (EPS) produced by these bacteria in biofilms on metallic surfaces establish the interfacial reaction space in which relevant corrosion processes occur. The EPS composition of the sulfur oxidizing bacterium Thiobacillus thioparus DSM 505 varies according to growth conditions. Presence of elemental sulfur and mild steel are demonstrated here as stimulants for variation of the EPS composition. The distribution of sugar moieties in the EPS of planktonic and biofilm grown cells of Thiobacillus thioparus DSM 505 was observed by fluorescently labeled lectin binding assays. The strongest signal was found with the PWM lectin (Pokeweed, Phytolacca americana) specific for Poly- N.. View More»
DOI: 10.4172/1948-5948.10000102