Table 1.
Terpene content in leaf exudates of non-infested and thrips-infested wild-type and def-1 plants, and mock-treated and MeJA-treated wild-type and def-1 plants
| No. | Compound | Treatments | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Wild-type (µg g–1 FW) | def-1 (µg g–1 FW) | Wild-type (µg g–1 FW) | def-1 (µg g–1 FW) | ||||||
| Control | +Thrips | Control | +Thrips | Mock | MeJA | Mock | MeJA | ||
| 1 | α-Pinene | 2.57 ± 0.28 a | 3.32 ± 0.33 b | 1.53 ± 0.16 c | 1.90 ± 0.12 c | 2.95 ± 0.22 a | 9.97 ± 1.17 b | 1.25 ± 0.10 c | 13.13 ± 1.67 d |
| 2 | p-Cymene | 0.46 ± 0.21 a | 0.51 ± 0.15 ab | 0.15 ± 0.15 bc | 0.0 ± 0.0 c | 0.59 ± 0.24 a | 2.66 ± 0.28 b | 0.0 ± 0.0 c | 6.19 ± 1.06 b |
| 3 | Myrcene | 0.31 ± 0.13 a | 0.52 ± 0.09 a | 0.0 ± 0.0 b | 0.38 ± 0.12 a | 0.45 ± 15 a | 2.05 ± 0.24 ac | 0.096 ± 0.09 b | 2.9 ± 0.31 c |
| 4 | δ-Carene | 8.68 ± 0.96 a | 11.13 ± 1.10 b | 4.62 ± 0.72 c | 6.26 ± 0.66 ac | 9.71 ± 0.58 a | 57.83 ± 5.61 b | 3.77 ± 0.26 c | 58.50 ± 6.18 b |
| 5 | α-Phellandrene | 2.01 ± 0.24 a | 2.94 ± 0.22 b | 1.11 ± 0.14 c | 1.48 ± 0.14 ac | 2.48 ± 0.21 a | 13.10 ± 1.26 b | 0.87 ± 0.04 c | 14.73 ± 1.69 b |
| 6 | α-Terpinene | 0.57 ± 0.17 a | 1.27 ± 0.32 b | 0.087 ± 0.08 a | 0.24 ± 0.13 a | 0.63 ± 0.21 a | 4.40 ± 0.40 b | 0.08 ± 0.08 c | 4.85 ± 0.5 b |
| 7 | Limonene | 5.28 ± 0.63 a | 7.55 ± 0.81 b | 2.12 ± 0.73 c | 4.02 ± 0.37 ac | 6.94 ± 0.64 a | 24.68 ± 8.45 b | 2.38 ± 0.12 c | 39.44 ± 4.91 b |
| 8 | β-Phellandrene | 24.20 ± 6.22 a | 38.80 ± 4.57 b | 17.11 ± 3.66 a | 20.56 ± 2.29 a | 33.99 ± 2.22 a | 183.66 ± 14.51 b | 11.89 ± 0.71 c | 209.78 ± 26.45 b |
| 9 | trans-β-Ocimene | 0.73 ± 0.12 a | 0.79 ± 0.077 a | 0.0 ± 0.0 b | 0.10 ± 0.10 b | 0.71 ± 0.05 a | 2.25 ± 0.26 a | 0.0 ± 0.0 b | 2.22 ± 0.81 a |
| 10 | γ-Terpinene | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 a | 0.73 ± 0.0 b | 0.0 ± 0.0 a | 0.84 ± 0.24 b |
| 11 | Terpinolene | 0.0 ± 0.0 a | 0.06 ± 0.06 a | 0.0 ± 0.0 a | 0.0 ± 0.0 a | 0.0 ± 0.0 a | 0.94 ± 0.10 b | 0.0 ± 0.0 a | 1.10 ± 0.15 b |
| 12 | Unknown | 2.63 ± 0.27 a | 3.37 ± 0.22 b | 1.67 ± 0.14 c | 2.87 ± 0.44 ab | 0.408 ± 0.60 a | 5.82 ± 1.11 ac | 1.48 ± 0.33 b | 9.27 ± 1.98 c |
| 13 | β-Caryophyllene | 6.39 ± 0.72 a | 5.90 ± 0.88 ab | 3.11 ± 0.38 b | 4.32 ± 1.12 ab | 7.55 ± 1.14 a | 2.17 ± 0.16 a | 2.57 ± 0.98 a | 2.56 ± 1.14 a |
The mean and SEM (n = 4–7) of each volatile identified is shown.
Different letters denote significant differences among groups compared by LSD test at P ≤ 0.05.