Figure 2From: Direct Contact – Sorptive Tape Extraction coupled with Gas Chromatography – Mass Spectrometry to reveal volatile topographical dynamics of lima bean (Phaseolus lunatus L.) upon herbivory by Spodoptera littoralis Boisd.PCA representing the whole set of data. 337 samples are here plotted in PCA by using all compounds as variables. A, Control unwounded leaves (C) are well-separated from damaged leaves. HW and MD show a clear separation. MDOS produced intermediate patterns between HW and MD. B, Loading plot highlights the discriminant variables (blue circle). Compound legend: a, n-hexanal; b, (E)-2-hexenal; c, (Z)-3-hexen-1-ol; d, 1-octen-3-ol; e, 6-methyl-5-hepten-2-one; f, octanal; g, (Z)-3-hexenyl acetate; h, p-cymene; i, limonene; j, 2-ethyl hexanol; k, (E)-β-ocimene; l, 1-octanol; m, linalool; n, nonanal; o, DMNT; p, (Z)-3-hexenyl butyrate; q, decanal; r, tridecane; s, geranyl acetone; t, (E)-nerolidol; u, TMTT.Back to article page