Figure 5.

Relative expression of CBF1, CBF2, and CBF3 genes from the leaves of (A) Italian (red columns; mean transcript level set to 1) and Swedish (blue columns) ecotypes and (B) wild-type Col-0 (open columns; mean transcript levels set to 1) and the vte1 (dark gray columns) and npq1 npq4 (orange columns) mutants of Arabidopsis thaliana grown at 35 °C. Mean values ± standard deviations (n = 3 or 4); significant differences (Student’s t-test) between (A) ecotypes or (B) mutants and wild-type, respectively, indicated by asterisks; * = p < 0.05, ** = p < 0.01, *** = p < 0.001, n.s. = not significantly different.