FIG. 1.

Growth of B. dermatitidis yeast is inhibited by deferoxamine only at concentrations of 0.5 mM or greater. Yeast was inoculated into RPMI 1640 medium containing the indicated concentrations of deferoxamine (Def) and incubated for the indicated times at 37°C. Numbers of viable yeast cells were then determined using alamarBlue. Deferoxamine at 0.5 or 1 mM significantly inhibited yeast growth at 48 h (P < 0.05) but not at the 72-h time point, whereas deferoxamine at 10 mM significantly inhibited the proliferation of B. dermatitidis yeast at all time points (P < 0.05). Yeast incubated in untreated RPMI 1640 medium served as a control. Data presented are the means ± standard errors of the means (SEM) of results from three separate experiments. The asterisk indicates significant inhibition of growth compared to control cultures (P < 0.05).