Fig. 5.

Freezing tolerances of LcMYB4-overexpressing Arabidopsis. a Performance of WT and transgenic lines under normal conditions (control) and freezing treatment (− 8 °C for 8 h, and recovered for 10 d). (b, c) Survival rates and height of flower stalk of transgenic and WT Arabidopsis after freezing treatments. Three-old plants were grown at 4 °C for 2 d, transferred to − 8 °C for 8 h, and then grown under normal conditions to recovery for 10 d. Experiments were performed in triplicate, and *** is indicated P < 0.001