Figure 5. Localization of volatile compounds after exposure to (Z)-3-hexenal vapor.

Intact leaves exposed to (Z)-3-hexenal vapor (0, 0.01, 0.1, and 1.0 mmol cm⁻³) were washed for 10 s with methanol to extract methanol-soluble surface volatiles (leaf wash) and the remaining surface-washed leaves were extracted with methyl tert-butyl ether (leaf extract). Error bars represent SE (n = 3). Data were analyzed by Tukey's test. Letters indicate significant differences in amounts of extracted compounds among exposure concentrations (P<0.05).