Figure 6.

Octadecanoid signaling mediates defense responses of tomato to thrips. Fifteen-day-old wild-type (WT), def-1, and 35S::prosys (Ps) plants were challenged with thrips larvae on the terminal leaflet of each of two expanded leaves (five larvae per leaf). A, Five days after challenge, PI-II protein levels were measured in leaves of infested (white bars) and control untreated (black bars) plants. B, Leaf damage to each host genotype was determined 5 d after challenge. Different lowercase letters denote a significant difference at P < 0.005. Data represent the mean and sd of 14 plants for each genotype.