A composition for controlling disease symptoms caused by plant pathogenic fungi exemplified by Fusarium spp., Sclerotinia spp., Rhizoctonia spp., Pithium spp., and the like. The composition is provided with a polypeptide molecule comprising an amino acid sequence sharing at least 80% sequence identity with SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO 6, or SEQ ID NO: 7. The composition may be one of a seed treatment, a plant treatment or a soil treatment. A transformed plant cell expressing a polypeptide molecule comprising an amino acid sequence sharing at least 80% sequence identity with SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, or SEQ ID NO:7 whereby said plant cell is resistant to infection by plant pathogenic fungi. A transformed microbial cell expressing a polypeptide molecule comprising an amino acid sequence sharing at least 80% sequence identity with SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, or SEQ ID NO:7.
