| It then lays its eggs in the folds of the leaf, which dries up and hampers ripening and lignification. |
| Roots may also be closely associated with other organisms, such as soil biota or symbionts, and differ in their degree of lignification. |
| Symptoms included veinal yellowing, veinal necrosis, dried flower clusters and reduced lignification of canes. |
| Oily lesions 37 mm long are sometimes seen on the involucre and shell before lignification. |
| Moreover, as fruit ripens, the achenes undergo a strong lignification of their thick pericarp. |
| Increased rates of suberization and lignification in the exodermis may lead to a greater resistance to the entry of materials into the root apoplast. |
