Figure 4.

Phenotype of AdPDC2 transgenic Arabidopsis and WT lines under heat stress. (A) The five-week-old transgenic and WT plants were grown in nutrient soil before heat stress; (B) The seedlings were kept at 37 °C for three days, and then recovery for one week; (C) The seedlings were planted in normal growth conditions for 45 d (CK); (D) Survival rate of plants in B after heat stress. For D, each column is the average of three replicates and each replicate has 36 plants. Bars indicate SD. The data presented are mean ±SD; Double asterisks indicate significant differences compared with control line values (** p < 0.01).