Table 1.

Volatile organic compounds (VOCs) increase upon treatment with the systemin peptide. List of VOCs significantly improved by Sys foliar application in comparison to VOCs blend released by mock- and Scp-treated plants (* p < 0.05, Kruskal-Wallis One Way ANOVA).

			Concentration (PPb)
Name	Molecular Formula	Molecular Weight g/mol	Control	Sys	Scp
Benzaldehyde *	C7H6O	106.124	1.54 × 106 ± 1.2 × 105	3.09 × 106 ± 2.8 × 105	1.81 × 106 ± 1.18 × 105
Ethylbenzene, p-Xylene *	C8H10	106.168	1.53 × 106 ± 1.43 × 105	3.06 × 106 ± 2.7 × 105	1.81 × 106 ± 1.16 × 105
β-Ocimene *	C10H16	136.238	1.01 × 106 ± 8.1 × 104	1.22 × 107 ± 1.46 × 105	1.19 × 106 ± 0.97 × 105
α-pinene *	C10H16	136.238	1.01 × 106 ± 8.1 × 104	1.22 × 107 ± 1.46 × 105	1.19 × 106 ± 0.97 × 105
limonene *	C10H16	136.238	1.01 × 106 ± 8.1 × 104	1.22 × 107 ± 1.46 × 105	1.19 × 106 ± 0.97 × 105
Methyl Jasmonate *	C13H20O3	224.300	6.4 × 105 ± 4.2 × 104	1.16 × 106 ± 5.17 × 104	5.68 × 105 ± 4.02 × 104
β-caryophyllene *	C15H24	204.357	1.75 × 105 ± 2.5 × 104	0.95 × 106 ± 7.6 × 104	1.16 × 105 ± 1.37 × 104