Investigation of Non-Host Resistance in Arabidopsis thalina (Mouse-Ear Cress) Plants To Control Early Blight Pathogen Alternaria solani

This study was conducted to reveal non-host interactions between model plant arabidopsis thaliana and early blight pathogen alternaria solani in time-course experiments. therefore, original ler and col-0 ecotypes that contain pad4, npr1, and eds1 resistance genes and their mutants, pad4-2 and npr1-1 plants were inoculated with mycelial discs and conidial suspension. the inoculated pad4-2 and npr1-1 mutants have shown necrotic symptoms 5 to 10 times higher than original ler and col-0 ecotypes. conidiospor inoculated eds1-3, pad4-2 and npr1-1 mutant plants supported spor germinations, however, neither spor germinations nor spor pentrations were occurred on original ler and col-0 ecotype leaves. these results indicate that wild-type a. thaliana ecotypes carrying pad4, eds1 and npr1 resistance genes govern resistance in non-host manner, the resistance mechanisms are always active to all organisms in the original a. thaliana ecotypes.