2020•Etlik Veteriner Mikrobiyoloji DergisiOpen access
The effect of iron on the expression of hemolysin/cytolysin and growth of clinical and environmental strains of Vibrio vulnificus
Sedat Çam
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Abstract
Elevated levels of iron are strongly correlated with the growth and virulence of highly lethal human-pathogen Vibrio vulnificus. The present study examined the expression level of hemolysin/cytolysin-encoding gene (vvhA) and the growth rate of four clinical and four environmental strains of V. vulnificus under different iron concentrations (7, 10, 15, 30, and 50 μM). The expression levels of vvhA were determined according to the 2-ΔΔCT method. vvhA transcription was down-regulated as iron concentration increased. A significant difference was observed at the level of 30 and 50 μM ferric chloride concentrations compared to the lower concentrations in all the strains tested (p
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