Fig. 1

Effect of the repeated wounding on the growth of the WT (wild type) seedlings. a Leaf area. b Root length. c Fresh weight. d Dry weight. The first wounding was performed at 21th day of the growth, indicated by the red line. Control: the un-wounded WT seedlings, and wounded: the wounded WT seedlings. The values represent means ± SD from twenty independent seedlings. *—statistically significant differences between the control and wounded treatment (* P < 0.05, ** P < 0.01)