Fig. 13.

Responses of the transgenic plants to heat stress with exogenous proline (Pro). (A) Seedlings grown on proline-supplemented medium were exposed to heat stress, and images were taken after 7 d. One representative image of three independent experiments is shown (each experiment included over 30 seedlings of each line). (B, C) The survival rate of the test lines was recorded after a 7-d recovery period at 22 °C. Data are means (±SD) of three independent experiments. (D) Proline content of the wild-type and transgenic lines. Data are means (±SD) of three independent experiments. Significant differences compared with the 22 °C control were determined using Student’s t-test (P<0.05).