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Figure 4 | BMC Plant Biology

Figure 4

From: 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.

Figure 4

HIPV topography. HIPV topography is clearly shown in PCA score plots: wounded areas (WA) are in all cases clearly separated from other leaf portions. PCAs were carried out using: b, (E)-2-hexenal; c, (Z)-3-hexen-1-ol; d, 1-octen-3-ol; g, (Z)-3-hexenyl acetate; k, (E)-β-ocimene; o, DMNT; p, (Z)-3-hexenyl butyrate; t, (E)-nerolidol; u, TMTT. A, Score plot for HW leaves (54 samples) shows the distinction between WA samples (green squares) and other leaf portions. B, HW loading plot suggests that GLVs and terpenoids have the same localization in HIPV topographical distribution. C, MDOS leaves (52 samples) show a distribution similar to HW leaves (A). D, MDOS loading plot. E, MD score plot (53 samples) shows the same topographical distribution. F, MD loading plot shows a different distribution between GLVs and the terpenoid groups. The position of (k) and (o) and the absence of (t) and (u) suggest the non-significant role of terpenoids in MD reaction, unlike the HW and MDOS loading plots (B, D).

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BMC Plant Biology

ISSN: 1471-2229

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