Figure 5. Time course of H₂O₂ accumulation (a) and O^2– production (b) in the hypocotyls of mung beans treated with water or SA.

Explants were incubated with SA or water for 24 h, and the H₂O₂ levels were monitored at the indicated time points. The mean values shown are the averages of three different experiments. The error bars represent the SE (n=5). The asterisks indicate that the mean values are significantly different compared with the control values (P<0.05). FW, fresh weight.