FIGURE 6.

Jasmonic acid signalling inhibits sugar accumulation in tomato associated with increased lesion development. (a–c) Leaf total soluble sugar levels including glucose (pink), fructose (yellow) and sucrose (blue) fractions as well as (d–f) lesion area induced by B. cinerea on detached leaflets at 3 dpi in (a and d) Moneymaker plants exposed for 5 days to WL or WL + FR conditions and treated daily with 50 μM MeJA or a mock solution, (b and e) in tomato cv. Castlemart plants and the JA biosynthesis mutants def1 (defenseless 1) exposed to WL or WL + FR conditions for 5 days or (c and f) in the def1 mutant treated for 5 days in WL and WL + FR and treated daily with a 50 μM MeJA or a mock solution. Different letters represent significant differences according to ANOVA, Tukey's post‐hoc test (p < .05). Data represent mean ± SEM, n = 3–8 plants per treatment