Figure 3.

CLA feeding-induced accumulation of antibiosis factors in vascular sap (VS) of Mp708 contributes to enhanced aphid resistance. Three adult CLA were allowed to feed on artificial diet, diet supplemented with the buffer (Buf) used to collect the vascular sap, or artificial diet containing vascular sap collected from aphid-uninfested or -infested Tx601 and Mp708 maize plants. Four days later, the numbers of aphids (adults plus nymphs) in each chamber were counted (n = 12). This experiment was conducted twice with similar results. Different letters above the bars indicate values that are significantly different from each other (P < 0.05). Error bars represent ± se.