Fig. 4 in α-Linolenic acid in Papilio machaon larvae regurgitant induces a defensive response in Apiaceae

Fig. 4. Time course of induction of volatile components by α-LA or water treatment. In the enlarged chromatograms from 4 to 5 min, the ion with m/z 69 was extracted to monitor the amount of cis-3-hexenal. GC–MS XIC chromatograms of S. divaricata treated with α-LA (A) or water (D), C. japonica treated with α-LA (B) or water (E), and P. crispum treated with α-LA (C) or water (F).