Table S3.
LC-MS/MS analysis of whole stem data
| Compound | [M+H]+ | MS/MS fragments of stem tissue, % | MS/MS fragments of standard, % |
| Catharanthine | 337.191054 | 93.07(18), 133.07(2), 144.08(100), 165.09(18), 173.11(10), 337.19(12) | 93.07(18), 133.07(2), 144.08(100), 165.09(17), 173.11(9), 337.19(12) |
| Tabersonine | 337.191054 | 122.10(6), 136.11(18), 168.08(5), 170.10(4), 216.10(6), 228.10(33), 230.12(4), 249.14(3), 277.17(5), 305.17(76), 337.19(100) | 122.10(7), 136.11(17), 168.08(4), 170.10(4), 216.10(6), 228.10(33), 230.12(4), 249.14(3), 277.17(5), 305.17(81), 337.19(100) |
| Serpentine | 349.154668 | 263.08(7), 295.11(2), 317.13(18), 349.16(100) | 263.08(9), 295.11(2), 317.13(28), 349.16(100) |
| Ajmalicine | 353.185968 | 144.08(100), 178.09(4), 210.11(14), 222.11(21), 321.16(21), 335.18(3), 353.19(56) | 144.08(100), 178.09(4), 210.11(14), 222.11(3), 321.16(5), 353.19(43) |
| Demethoxyvindoline | 427.222748 | 158.10(100), 307.18(5), 325.19(2), 335.17(3), 349.19(2), 367.20(41), 409.21(2), 427.22(11) | 143, 158, 367, 409, 427* |
| Vindoline | 457.233312 | 162.09(3), 188.11(100), 222.11(3), 337.19(4), 397.21(23), 457.23(7) | 162.09(2), 188.11(100), 222.11(3), 337.19(4), 397.21(24), 457.23(8) |
| Strictosidine | 531.233706 | 144.08(93), 165.05(43), 170.10(23), 250.09(25), 251.09(46), 274.12(25), 282.11(55), 283.12(35), 302.12(36), 308.13(23), 320.13(38), 334.14(89), 352.15(100), 514.21(40) | 139.04, 144.08, 165.05, 170.09, 181.09, 222.09, 250.09, 282.12, 302.12, 320.13, 334.14, 352.15, 514.21† |