FIGURE 5.

JA content and fold-change in the expression of related genes involved in the JA-dependent signaling pathway in two tomato genotypes grown under ambient O₃ and elevated O₃ with and without B. tabaci infestation. (A) JA content. (B) LOX. (C) PI. Each value represents the mean (±SE) of four OTCs (eight plants for each genotype per OTC). Different lowercase letters indicate significant differences among the combinations of B. tabaci treatment and O₃ concentrations within the same genotype. Different uppercase letters indicate significant differences between genotypes within the same O₃ treatment and B. tabaci treatment.