Fig. 2.

Whitefly-induced volatiles prime SA-dependent defenses and suppress JA-dependent defenses in volatile-exposed tomato plants. (A) JA levels in unexposed and exposed plants either without or with subsequent infestation with whiteflies (n = 3). (B) SA levels in unexposed and exposed plants either without or with subsequent infestation with whiteflies (n = 3). (C) Expression of defense genes in unexposed and exposed plants either without or with subsequent infestation with whiteflies (n = 3). Error bars correspond to SEs. Within each graph with six bars, different letters indicate significant differences (P < 0.05; Tukey’s multiple comparison test). DW, dry weight.