Figure 3.

Expression patterns of SlMKKs after treatment with defense signaling hormones. Tomato plants were treated by foliar spraying of SA (A), MeJA (B) or ACC (C) and leaf samples were collected at time points as indicated. Gene expression was analyzed by qRT-PCR and relative expression levels were calculated by comparing with the corresponding values at 0 hr (as a control) after treatment. Data presented are the means ± SD from three independent experiments and different letters above the columns indicate significant differences at p < 0.05 level.