Table 2.
The leaf cuticular waxes of Rhazya stricta are composed of a relatively small aliphatic (3.4% of total wax) and a very large triterpenoid (85.2%) fraction. Each value represents the mean ± SD (n = 5 biological replicates).
| Compound class | Chain length | Coverage (μg cm−2) |
|---|---|---|
| Alkanes | ||
| 23 | 0.36 ± 0.11 | |
| 25 | 0.30 ± 0.20 | |
| 26 | 0.29 ± 0.17 | |
| 27 | 0.20 ± 0.12 | |
| 28 | 0.13 ± 0.07 | |
| 29 | 0.28 ± 0.11 | |
| 30 | 0.22 ± 0.04 | |
| 31 | 2.38 ± 0.75 | |
| 32 | 0.37 ± 0.10 | |
| 33 | 1.76 ± 0.72 | |
| Total | 6.30 ± 2.15 | |
| Primary alcohols | ||
| 20 | 0.64 ± 0.43 | |
| 22 | 0.42 ± 0.31 | |
| 24 | 0.07 ± 0.02 | |
| 28 | 0.14 ± 0.03 | |
| 29 | 0.10 ± 0.01 | |
| 30 | 0.40 ± 0.10 | |
| Total | 1.78 ± 0.78 | |
| Fatty acids | ||
| 20 | 0.23 ± 0.04 | |
| 22 | 0.14 ± 0.05 | |
| 24 | 0.11 ± 0.05 | |
| Total | 0.48 ± 0.12 | |
| Total aliphatics | 8.56 ± 2.93 | |
| Triterpenoids | ||
| Taraxerol | 0.95 ± 0.19 | |
| α-Amyrin | 0.27 ± 0.07 | |
| Erythrodiol | 2.60 ± 1.26 | |
| Uvaol | 2.27 ± 0.32 | |
| Oleanolic acid | 48.05 ± 6.18 | |
| Betulinic acid | 2.47 ± 1.09 | |
| Ursolic acid | 102.69 ± 12.73 | |
| Echinocystic acid | 52.56 ± 12.57 | |
| Hederagenin | 2.26 ± 0.60 | |
| Total triterpenoids | 214.12 ± 31.20 | |
| Not identified | 28.72 ± 6.34 | |
| Total wax | 251.41 ± 38.97 | |