Effect of lipids from Mortierella hygrophila on plant resistance to phytopathogens

A mixture of fatty acid ethyl esters containing arachidonic acid (ARA) at 30% was isolated from Mortierella hygrophila and applied for a foliar treatment of plants. Field experiments revealed that the lipid preparation used at 0.3-0.5 mg per 100 m(2) of sown area decreased the development of late blight, common scrab, and rhizoctonoise of potato tubers, cercosporose of sugar beet, and powdery mildew of vine plants by 35-70% as compared to the untreated plants and resulted in a significant increase in the yield.