Figure 1.

Survival of S. cerevisiae cells exposed to increasing propolis concentrations. Exponential cells of the wild type BY4741 were directly exposed to propolis. After 1 h, cells were plated in triplicate on solidified 2% YPD medium. The plates were incubated at 28 °C/72 h and then colonies counted. The results expressing percentage of survival in relation to non-stressed cells were obtained from the average ± standard deviation of three independent experiments.