Fig. 1

CMV infection quantitatively and qualitatively alters the blend of organic volatile compounds emitted by tobacco plants. Volatile organic compounds (VOCs) were collected by dynamic headspace trapping from tobacco plants that had been mock inoculated (mock) or inoculated with CMV (strain Fny) or its 2b gene deletion mutant CMVΔ2b. a Total VOC emissions corrected for leaf area are shown as mean ± SEM. b Individual VOC emission corrected for leaf area are shown. A, 3-hexanol; B, trans-2-methylcyclopentanol; C, nonane; D, 2,5-dimethyl-3,4-hexanediol; E, 2,6-dimethyloctane; F, 6-methyl-5-hepten-2-one; G, limonene; H, non-2-en-1-ol; I, nonanal; J, decanal; K, undecanal; L, nerolidol; M, tetradecane; N, dodecanal; O, geranylacetone; P, α-farnesene, and Q, unknown [(potentially sulfur containing compound(s)]. VOCs were collected for 3 days (n = 3 plants per treatment group)