Quantitative Analysis of Disease Lesions Induced by Infection with a Compatible Race of M. grisea.
Leaves of the nontransgenic wild type, CA-OsRac1, Os RAR1-RNAi, and double transgenic CA-OsRac1/Os RAR1-RNAi plants were used in three independent experiments (mean ± se; n = 12 to 61). Double transgenic plants were made by introducing the Os RAR1-RNAi construct into the CA-OsRac1 transgenic line. The double transgenic plants were more resistant to race 007 of M. grisea than Os RAR1-RNAi plants and more susceptible than CA-OsRac1 plants.