Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack
Figure 5
Volatile organic compounds emitted by attacked and nonattacked Populus x canadensis clone “Conti 12.” The numbers represent the major compounds, 1: β-selinene, 2: α-selinene, 3: β-chamigrene, 4: β-elemene, 5: salicylic aldehyde, 6: β-cubebene, 7: β-sesquiphellandrene, 8: α-gurjunene, 9: δ-cadinene, 10: α-ylangene, 11: α-copaene, 12: aldehyde of Rt20.57, and 13: aldehyde of Rt21.82. The area normalization performed only on identified compounds and the values are the mean of four replicates SD. NS: not significant differences between relative concentration in attacked and non-attacked plants (). * and **: relative concentration in the attacked plants is significantly different () or highly different () respectively, from non-attacked plants (ANOVA-Tukey HSD mean multiple comparison test). AT: compounds only present in attacked plants and NA: only present in nonattacked plants.
