Figure 6.

DELLAs Contribute to CBF1-Induced Freezing Tolerance and Cold Acclimation.

Freezing tolerance (expressed as rate of survival [%]; three replicates; n = 24) of 2-week-old wild-type, CBF1-ox, CBF1-ox gai-t6 rga-24, gai, and gai-t6 rga-24 plants nonacclimated (A) or cold-acclimated (4°C, 3 d) (B). Plants were exposed for 24 h at −10°C, and survival was scored after 4 d of recovery under controlled growth conditions. The asterisks indicate no significant difference (P < 0.05) between wild-type and CBF1-ox gai-t6 rga-24 cold-acclimated plants.