Table 2.
List of topmost lipids showing the highest correlation with seed viability (%) and storage time (days) in seeds of rice cv. IR64 stored under EPPO aging treatments.
| Cluster ID | m/z | Retention time (min) | Adduct (H+ or NH4+) | Total formula | Elemental formula + # oxygen atoms added | Putative annotation | IDa | Percentage increase over initial control in EPPO aging treatment | rViability | rStorage time | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14d | 28d | 42d | 56d | ||||||||||
| 63 | 340.2842 | 4.7 | H+ | C20H37NO3 | C20H37NO2 + 1 O | Anandamide + 1 O | LM | 128.7 | 155.6 | 220.4 | 239.0 | -1.00 | 0.98 |
| 24 | 348.2746 | 3.0 | NH4+ | C18H34O5 | C18H34O2 + 3 O | Oleic acid + 3 O | LM | 115.5 | 140.3 | 180.0 | 206.5 | -0.99 | 0.99 |
| 57 | 279.2320 | 4.6 | – | – | – | unknown | – | 128.9 | 177.3 | 290.7 | 303.2 | -0.99 | 0.97 |
| 346 | 804.6718 | 13.1 | NH4+ | C49H86O7 | C49H86O6 + 1 O | TAG 46:4 + 1 O | 7803 | 101.3 | 108.7 | 120.9 | 127.2 | -0.98 | 0.97 |
| 353 | 906.7767 | 13.3 | NH4+ | C55H100O8 | C55H100O6 + 2 O | TAG 52:3 + 2 O | 8487 | 461.7 | 937.0 | 1232.6 | 1854.2 | -0.98 | 0.99 |
| 571 | 738.6757 | 19.5 | H+ | C49H84O3 | C49H84O2 + 1 O | CE 22:2 + 1 O | LM | 189.6 | 260.3 | 340.2 | 483.8 | -0.98 | 0.99 |
| 347 | 930.7766 | 13.1 | NH4+ | C57H100O8 | C57H100O6 + 2 O | TAG 54:5 + 2 O | 8506 | 640.6 | 1527.2 | 2028.5 | 3229.6 | -0.97 | 0.99 |
| 577 | 947.8470 | 19.7 | – | – | – | unknown | – | 284.3 | 391.5 | 529.7 | 805.1 | -0.97 | 0.99 |
| 447 | 888.7655 | 16.1 | NH4+ | C55H98O7 | C55H98O6 + 1 O | TAG 52:4 + 1 O | 7852 | 278.1 | 397.1 | 483.7 | 735.1 | -0.96 | 0.99 |
| 499 | 892.7970 | 18.0 | NH4+ | C55H102O7 | C55H102O6 + 1 O | TAG 52:2 + 1 O | 7838 | 426.2 | 610.6 | 822.3 | 1341.2 | -0.96 | 0.98 |
| 469 | 916.7968 | 17.0 | NH4+ | C57H102O7 | C57H102O6 + 1 O | TAG 54:4 + 1 O | 7855 | 306.1 | 426.5 | 514.1 | 791.3 | -0.96 | 0.98 |
| 410 | 892.7982 | 15.0 | NH4+ | C55H102O7 | C55H102O6 + 1 O | TAG 52:2 + 1 O | 7838 | 261.5 | 383.1 | 451.8 | 697.4 | -0.96 | 0.98 |
| 386 | 911.7534 | 14.3 | – | – | – | unknown | – | 303.9 | 470.9 | 549.1 | 859.1 | -0.96 | 0.98 |
| 194 | 411.3625 | 10.1 | – | – | – | unknown | – | 108.4 | 108.9 | 113.4 | 116.7 | -0.96 | 0.96 |
| 420 | 912.7656 | 15.3 | NH4+ | C57H98O7 | C57H98O6 + 1 O | TAG 54:6 + 1 O | 7867 | 282.5 | 409.8 | 482.8 | 748.6 | -0.96 | 0.98 |
| 519 | 722.6447 | 18.3 | H+ | C40H80O3 | C40H80O2 + 1 O | CE 21:3 + 1 O | LM | 251.5 | 433.2 | 503.5 | 801.4 | -0.96 | 0.98 |
| 453 | 914.7811 | 16.3 | NH4+ | C57H100O7 | C57H100O6 + 1 O | TAG 54:5 + 1 O | 7854 | 303.8 | 432.6 | 514.6 | 807.6 | -0.96 | 0.98 |
| 388 | 919.7368 | 14.4 | – | – | – | unknown | – | 311.9 | 466.3 | 517.7 | 778.7 | -0.96 | 0.98 |
| 129 | 800.5808 | 7.0 | H+ | C51H74O6 | C51H74O2 + 4O | Prenol lipid, unknown | LM | 379.6 | 483.2 | 592.9 | 917.1 | -0.96 | 0.98 |
| 122 | 798.5648 | 6.6 | H+ | C44H80NO7P | C44H80NO5P + 2 O | PC 36:4 + 2 O | LM | 443.6 | 660.1 | 728.2 | 995.1 | -0.96 | 0.98 |
| 382 | 888.7656 | 14.3 | NH4+ | C55H98O7 | C55H98O6 + 1 O | TAG 52:4 + 1 O | 7852 | 279.8 | 422.8 | 490.6 | 789.2 | -0.95 | 0.98 |
| 517 | 918.8124 | 18.2 | NH4+ | C57H104O7 | C57H104O6 + 1 O | TAG 54:3 + 1 O | 7857 | 302.0 | 420.6 | 500.6 | 800.6 | -0.95 | 0.98 |
| 336 | 930.7764 | 12.8 | NH4+ | C57H100O8 | C57H100O6 + 2 O | TAG 54:5 + 2 O | 8506 | 335.1 | 611.3 | 709.2 | 1191.8 | -0.95 | 0.98 |
| 342 | 910.7499 | 13.0 | NH4+ | C57H96O7 | C57H96O6 + 1 O | TAG 54:7 + 1 O | 7864 | 383.4 | 621.8 | 731.8 | 1223.0 | -0.95 | 0.98 |
| 390 | 914.7811 | 14.5 | NH4+ | C57H100O7 | C57H100O6 + 1 O | TAG 54:5 + 1 O | 7854 | 346.8 | 543.1 | 624.5 | 1022.0 | -0.95 | 0.98 |
| 433 | 862.7499 | 15.7 | NH4+ | C53H96O7 | C53H96O6 + 1 O | TAG 50:3 + 1 O | 7828 | 284.5 | 480.1 | 571.0 | 959.2 | -0.95 | 0.98 |
| 423 | 916.7969 | 15.4 | NH4+ | C57H102O7 | C57H102O6 + 1 O | TAG 54:4 + 2 O | 7856 | 323.7 | 485.9 | 578.2 | 960.0 | -0.95 | 0.98 |
| 366 | 912.7656 | 13.6 | NH4+ | C57H98O7 | C57H98O6 + 1 O | TAG 54:6 + 1 O | 7867 | 296.8 | 447.2 | 522.8 | 859.7 | -0.95 | 0.98 |
| 481 | 916.7968 | 17.4 | NH4+ | C57H102O7 | C57H102O6 + 1 O | TAG 54:4 + 1 O | 7855 | 301.2 | 438.6 | 515.3 | 850.5 | -0.95 | 0.98 |
| 425 | 891.7854 | 15.7 | – | – | – | unknown | – | 152.0 | 261.6 | 317.3 | 512.4 | -0.95 | 0.97 |
| 489 | 943.8160 | 17.7 | – | – | – | unknown | – | 433.4 | 717.9 | 813.2 | 1374.9 | -0.95 | 0.98 |
| 413 | 918.8130 | 15.2 | NH4+ | C57H104O7 | C57H104O6 + 1 O | TAG 54:3 + 1 O | 7857 | 577.9 | 843.3 | 949.5 | 1526.4 | -0.95 | 0.98 |
| 415 | 887.7535 | 15.2 | – | – | – | unknown | – | 254.3 | 377.2 | 421.0 | 676.4 | -0.95 | 0.98 |
| 476 | 890.7811 | 17.2 | NH4+ | C55H100O7 | C55H100O6 + 1 O | TAG 52:3 + 1 O | 7835 | 307.2 | 447.0 | 526.4 | 884.2 | -0.95 | 0.97 |
| 524 | 892.7968 | 18.6 | NH4+ | C55H102O7 | C55H102O6 + 1 O | TAG 52:2 + 1 O | 7838 | 399.9 | 529.0 | 745.6 | 1307.1 | -0.95 | 0.97 |
| 439 | 914.7811 | 16.0 | NH4+ | C57H100O7 | C57H100O6 + 1 O | TAG 54:5 + 1 O | 7854 | 300.7 | 420.9 | 487.8 | 806.8 | -0.95 | 0.97 |
| 332 | 909.7162 | 12.5 | – | – | – | unknown | – | 230.7 | 488.1 | 626.4 | 1123.4 | -0.95 | 0.97 |
| 472 | 921.7524 | 17.1 | – | – | – | unknown | – | 654.0 | 796.3 | 938.4 | 1367.3 | -0.95 | 0.97 |
| 434 | 812.6558 | 15.7 | H+ | C54H82O4 | – | Coenzyme Q9 | LM | 90.7 | 77.8 | 70.0 | 79.6 | 0.84 | -0.83 |
| 157 | 955.7575 | 8.9 | H+ | C61H108O6 | – | TAG 58:5 | 7256 | 97.4 | 85.6 | 80.2 | 86.7 | 0.84 | -0.83 |
| 325 | 548.5040 | 12.6 | H+ | C57H98O6 | – | TAG 54:6 | 7236 | 97.7 | 96.9 | 97.0 | 96.4 | 0.85 | -0.88 |
| 143 | 190.1260 | 8.0 | – | – | – | unknown | – | 91.9 | 87.2 | 74.2 | 82.2 | 0.90 | -0.86 |
| 467 | 892.7393 | 17.0 | NH4+ | C57H94O6 | – | TAG 54:8 | 7231 | 95.8 | 91.4 | 77.1 | 84.5 | 0.91 | -0.86 |
The annotation of lipid species belonging to triacylglycerides (TAGs) or diacylglycerides (DAGs) is provided as the total number of carbons in their fatty acid chains, number of unsaturated bonds and the number of oxygen atoms incorporated. The provided annotations are putative, based on the elemental formula deduced from the detected accurate mz values.
a – LM refers to Lipid Maps (https://www.lipidmaps.org); numbers refer to IDs of oxidized lipids from Riewe et al., 2017.