Table 2.
Amounts (ng/day; mean ± SE) of volatiles released on day four by tobacco plants*
| Treatment | |||||
| Compound | C | HV | R | S | W |
| 1. α-pinene | 0 ± 0 | 0 ± 0 | 0 ± 0 | 23.7 ± 15 | 4.11 ± 4.11 |
| 2. β-pinene | 0 ± 0 | 0 ± 0 | 6.41 ± 6.41 | 14.93 ± 1.24 | 7.95 ± 4.87 |
| 3. myrcene | 0 ± 0 | 9.63 ± 6.15 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
| 4. (E)-β-ocimene | 0 ± 0 | 3094 ± 1427 | 158.9 ± 48 | 141.9 ± 65.2 | 49 ± 8.31 |
| 5. linalool | 0 ± 0 | 126.3 ± 66.3 | 12.2 ± 7.89 | 19.72 ± 5.88 | 0 ± 0 |
| 6. indole | 0 ± 0 | 110 ± 61 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
| 7. nicotine | 0 ± 0 | 120.8 ± 74 | 878 ± 215 | 227.2 ± 72.2 | 91.8 ± 56.2 |
| 8. β-elemene | 0 ± 0 | 74.6 ± 47.6 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
| 9. β-caryophyllene | 0 ± 0 | 1964 ± 661 | 365 ± 90.5 | 129.4 ± 45.9 | 110.4 ± 38.7 |
| 10. α-humulene | 0 ± 0 | 63.5 ± 23.3 | 4.72 ± 4.72 | 0 ± 0 | 0 ± 0 |
| 11. unidentified sesquiterpene | 0 ± 0 | 258 ± 151 | 7.11 ± 7.11 | 0 ± 0 | 0 ± 0 |
| 12. (E,E)-α-farnesene | 0 ± 0 | 554 ± 338 | 3.86 ± 3.86 | 5.02 ± 5.02 | 0 ± 0 |
| 13. caryophyllene oxide | 0 ± 0 | 77.8 ± 25.2 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
*
Receiving the following treatments: unwounded control plants (C), mechanical wounding (W), mechanical wounding plus the application of H. virescens regurgitant (R), mechanical wounding plus the application of H. virescens homogenized salivary glands (S), and H. virescens feeding (HV) (n = 5).