Investigating Acid Stress Response in Different Saccharomyces Strains

Figure 1

H⁺ neutralisation capacity of yeast cells grown in YPD medium, as determined by an acid pulse technique. (a) Extracellular H⁺ neutralisation capacity of S. boulardii (●), S. boulardii exposed to pH 2.0 + 86 mM NaCl (o), S. cerevisiae W303 (■), and S. cerevisiae W303 exposed to pH 2.0 + 86 mM NaCl (□). (b) Total H⁺ neutralisation capacity of S. boulardii (●), S. boulardii exposed to pH 2.0 + 86 mM NaCl (o), S. cerevisiae W303 (■), and S. cerevisiae W303 exposed to pH 2.0 + 86 mM NaCl (□).

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