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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Plant Ecol. 2018 Jun 22;219(9):1021–1028. doi: 10.1007/s11258-018-0854-y

Figure 2.

Figure 2

Quantitative differences in the wound-induced BVOC blend emitted during seven minutes after straight cuts to the leaf lamina (in dark grey) and transversal cuts across the midrib (in light grey) of mature leaves of aspen (Populus tremula). The values (average ± SE, n = 35 for lamina cuts and n = 15 for midrib cuts) refer to the open wound surface exposed (in mm2), calculated from the leaf lamina thickness, midrib diameter, and cut length. Note the different scales and units used in the y-axes. P-values after Mann-Whitney U tests between lamina and midrib cuts were < 0.05 in most of cases, otherwise they were considered non-significant “ns”. TMTT = (E,E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene. DMNT = (E)-4,8-dimethyl-1,3,7-nonatriene. More information on the molecular formulae of the compounds, P-values, and exact emission values are provided in Table 1.