FIG 8.
Detection of sugar in supernatants and rates of glucose consumption by S. mutans and C. albicans. (A) Benedict’s assay showed that S. mutans supernatant contains reducing sugars (e.g., glucose and fructose), whereas these carbohydrates were not detected in either S. mutans bcr1Δ/Δ supernatant or S. mutans SC5314 supernatant. (B) Seliwanoff’s test showed the presence of keto-sugars (e.g., fructose) in the S. mutans supernatant. The S. mutans bcr1Δ/Δ supernatant and S. mutans SC5314 supernatant showed no presence of keto-sugars. (C) C. albicans SC5314 and bcr1Δ/Δ displayed a significantly higher glucose consumption rate than S. mutans (C).