The present invention relates to novel antipathogenic peptides, to DNA sequences encoding said peptides, to vectors comprising said DNA sequences, to transgenic plants comprising a DNA sequence encoding said peptides, to compositions containing anti-pathogenic peptides and to the use of said peptides and compositions for controlling plant pathogens, Also comprised are methods of preparing antipathogenic peptides or compositions containing same and transgenic plants able to synthesize anti-pathogenically effective amounts of said peptides.