Figure 5.

CBF proteins are redundant in plant development and in the regulation of COR gene expression. A, Plants were photographed after they were grown in a greenhouse at 23°C and with a 15-h-light/9-h-dark regime for 4 weeks. B to E, Expression of RD29A, COR15A, KIN1, and COR47 genes in 8-d-old seedlings that were treated with 4°C for 0, 3, 6, and 24 h. Expression was assessed with quantitative real-time RT-PCR, and ACTIN8 was used as the internal control. Error bars indicate the sd of three biological replicates.