Figure 2.
Impacts of melatonin application on the oxidative stress response in tomato plants. (A) ROS fluorescence and (B) H2O2, (C) O2−, and (D) MDA levels in tomato leaves after 10 days of drought stress. The green spots display the distribution of ROS. Bars, 50 µm. Data values are the means ± S.D. (n = 6). Significant differences among different treatments in the experiment were determined by LSD 0.05 test and are indicated by different letters.