Fig. 11
Effects of H2O2 scavenging by DMTU on feeding damage symptoms and total chlorophyll content induced by S. graminum feeding in wheat leaves. a-c: DAB staining to detect H2O2 in wheat leaves (scale bar = 2 mm). d-i: feeding damage symptoms and degradation of chlorophyll in wheat leaves. j: total chlorophyll content in wheat leaves treated with 5 mM DMTU. Different letters indicate significant differences among treatments (P < 0.05, ANOVA). The values are presented as means ± SE of three biological replicates. A, D, G: leaves without aphid infestation; B, E, H: leaves infested with aphids treated with 5 mM DMTU; C, F, I: leaves infested with aphids