TABLE 2.
Pathways of identified metabolites differentially accumulated locally or systemically upon OG treatment in leaves or roots
| Response | Leaves | Roots |
|---|---|---|
| Local | (2%) | (5.8%) |
| Flavonoid biosynthesis (3) | Flavonoid biosynthesis (4) | |
| Porphyrin and chlorophyll metabolism (2) | Lignan (3) | |
| Alkaloids biosynthesis (3) | ||
| Auxin degradation (2) | ||
| Biotin metabolism (2) | ||
| Terpenoids‐quinone biosynthesis (2) | ||
| Lysine biosynthesis (2) | ||
| Systemic (LT) | (1.8%) | (3.4%) |
| Flavonoid biosynthesis (3) | Amino acid metabolism (7) | |
| Purine metabolism (2) | Dipeptide (3) | |
| Amino acid metabolism (2) | Lignan (2) | |
| Fatty acid biosynthesis (2) | ||
| Systemic (RT) | (2.2%) | |
| Alkaloids biosynthesis (3) | ||
| Amino acid metabolism (3) |
Notes: The percentage of signals showing significantly higher accumulation from the total identified signals for a given treatment is shown in brackets. Identified metabolites were assigned to their corresponding metabolic pathways, and the number in the right refers to the identified compounds within that pathway. The signals corresponding to different treatments were compared using the non‐parametric Kruskal–Wallis test, and only data with a p‐value < .01 between groups were used for subsequent identification.