Isolation and characterization of a bacterial wilt disease resistance-inducing substance from tobacco

Abstract

In warm regions of the world, bacterial wilt disease caused by the plant pathogen Ralstonia solanacearum affects many crops, including solanaceous species, but no effective protection against this disease has been developed. A R. solanacearum resistance-inducing substance was isolated from tobacco. The substance was found to be a previously reported substance. When applied to tobacco, tomato, and Arabidopsis plants, it induced resistance to infection with a pathogenic strain of R. solanacearum without exhibiting any antimicrobial activity. These results suggested that the substance we islated can be used as agrochemicals against bacterial wilt disease.