F. Heat stress resistance of bes1-1, bes1-2 and bes1-D as compared to wild-type. For basal resistance assays (top charts) plants were directly exposed to 45°C for the indicated time. For acquired resistance (bottom charts), plants were primed with the respective temperatures for 120 minutes before transfer to 45°C for 150 minutes. Data show the mean ±SE. n=7. The asterisks indicate significant differences compared to wild-type by Student's t-test (*P≤0.05; **P≤0.01; ***P≤0.001). 