HOST-PARASITE INTERACTION SOLANUM-GILO (R ADDLI) STEMPHYLIUM-FLORIDANUM (HANNON-ET-WEBER) - FOLIAR LEVEL OF CHLOROGENIC ACID-RELATED TO PATHOGEN RESISTANCE

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