Table 1.
The differential metabolites in xylem and phloem sap of Cucumber under different phosphorus stress analyzed by PLS-DA model.
| Xylem | Phloem | ||||
|---|---|---|---|---|---|
| Metabolites | p | VIP | Metabolites | p | VIP |
| Stearic acid | *** | 3.12029 | Galactitol | *** | 3.33729 |
| Palmitic acid | *** | 2.89369 | Palmitic acid | *** | 3.12769 |
| Phenylalanine | *** | 2.51584 | Stearic acid | *** | 2.93922 |
| Ethanolamine | *** | 2.39481 | Galactaric acid | *** | 2.69905 |
| Malic acid | *** | 2.15182 | Pipecolic acid | *** | 2.64936 |
| 2-Monostearin | *** | 1.84387 | Trimethylsilyl ester | *** | 2.44461 |
| Beta-Sitosterol | *** | 1.67496 | Ethanolamine | *** | 2.28112 |
| Citric acid | *** | 1.61834 | D-Fructose | *** | 2.15505 |
| Silane | *** | 1.48680 | γ-aminobutyric acid | *** | 1.76774 |
| Glycerolmonostearate | *** | 1.45735 | Oxalic acid | *** | 1.63812 |
| Galactitol | *** | 1.44325 | 1-Monopalmitin | *** | 1.51261 |
| Phosphoenolpyruvate | *** | 1.34310 | Glycerolmonostearate | *** | 1.49872 |
| 1-Monopalmitin | *** | 1.31531 | Glucose | *** | 1.46972 |
| Glutamate | *** | 1.31233 | Mannitol | *** | 1.27220 |
| Oxalic acid | *** | 1.29589 | Benzene | ** | 1.26719 |
| Benzene | *** | 1.14935 | Sucrose | *** | 1.15488 |
| D-Xylitol | *** | 1.12737 | Homoserine | *** | 1.15416 |
| Trisiloxane | *** | 1.12260 | Malic acid | ** | 1.15056 |
| Galactaric acid | *** | 1.02495 | Dehydroabietic acid | *** | 1.13394 |
| Aminoadipic acid | *** | 1.00987 | Succinic acid | ** | 1.11712 |
| Heptasiloxane | *** | 1.00980 | Citric acid | ** | 1.05460 |
| Ethane | *** | 1.00030 | Pyroglutamic acid | *** | 1.00308 |
Note: *** represents extremely significant (p < 0.001), and ** represents significant (p < 0.05).