Table 3. Phytotoxic Activity of Metabolites 1–4 Tested by Leaf Puncture at 1 mg/mLa.
| compound | holm oak (Quercus ilex L.) | tomato (Lycopersicon esculentum L.) |
|---|---|---|
| 1 | 2 | 1 |
| 2 | 3 | 2 |
| 3 | 2 | 1 |
| 4 | 2 | 1 |
Toxicity effects were expressed using a visual scale from 0 (no symptoms) to 4 (wide necrosis up to 1 cm in diameter).