Plant Derived Bio-Fungicide against Soybean Rust Disease
Domestic soybean cultivars used in the U.S. are highlysusceptible to soybean rust disease caused by Phakopsora pachyrhizi. The rapid spread of the disease and its abilityto cause significant yield losses (ranging from 13 to 80% of total yield) canresult in major economic losses for soybean producers. Synthetic fungicides areheavily used (~74 million acres in US in 2007) to prevent rust disease buttheir effect on human health and the ecosystem is unknown. In addition, theeffectiveness of synthetic fungicides is limited for both early and late seasoninfections and there is a high probability of future fungicide resistance.
Researchers at the University of Illinois Departments ofPlant Biology, Crop Sciences, and Entomology have developed a new bio-fungicidederived from natural plant compounds. The team has identified the naturalcompound produced by Glycine tomentella,a naturally-resistant soybean variety that is responsible for its resistance tosoybean rust. This compound can be applied to sensitive strains to provideresistance.