3-HYDROXYACETOPHENONE IN CARNATIONS IS A PHYTOANTICIPIN ACTIVE AGAINST FUSARIUM-OXYSPORUM F SP DIANTHI

Among other constitutive phenols, 3-hydroxyacetophenone has been detec ted in an uninfected carnation cultivar totally resistant to Fusarium oxysporum f. sp. dianthi, a fungus known to cause the main disease aff ecting this plant species. In both in vivo and in vitro experiments, t he isolated compound proved very active in restricting parasite develo pment. Thus, 3-hydroxyacetophenone, as a preformed and constitutive co mponent of the uninfected cultivar, can be considered as a carnation p hytoanticipin.