Fig. 7.

Overexpression of OsPYL3 and OsPYL9 enhanced cold stress tolerance. a Two-week-old OsPYL3 and OsPYL9 overexpression seedlings were subjected to 10 °C treatment and then recovered at room temperature. Photographs were taken at before cold (upper panel) and 4 days after cold treatment (middle panel), and 7 days after recovered (bottom panel). b and c Survival rates of the cold-treated plants after 7 days of recovery. Values are mean ± SD (n = 30 for each replicate) of three independent experiments. d and e Relative ion leakage in rice leaves after 10 °C treatment for 0 d, 2 d and 3 d. Data represent means ± SD of three biological replicates