Interaction hôte‐parasite Solanum gilo (Raddli) Stemphylium floridanum (Hannon et Weber). Relation entre teneur en acide chlorogénique foliaire et résistance au pathogène

Phenolic profile of Solanum gilo leaves was investigated after incubation with Stemphylium floridanum culture filtrates. The amount of chlorogenic acid, largely dominant, was in correlation with foliar resistance either by a high constitutive level in some leaves (apical leaves of productive plants) or by a fast increase induced in other leaves by fungus elicitors (youngest leaves of plants nursery). An additional role of other identified phenolic compounds was also proposed so that a sufficient resistance level was conferred to S.gilo leaves.