In Arabidopsis, earlier work with strains of non-pathogenic rhizobacteria demonstrated jasmonic acid-and ethylene-dependent induced systemic resistance (ISR) that is effective against different pathogens. In the present work, the mutant analyses showed similarity of the rhizobacteriaand Trichoderma-ISR signaling pathways in which components from the jasmonic acid and ethylene response are engaged to trigger a defense reaction. However, not only jasmonic acid and ethylene but also other phytohormones such as abscisic acid, auxin and gibberellic acid are involved in activating resistance mechanisms in Arabidopsis against Botrytis cinerea.
In Arabidopsis, earlier work with strains of non-pathogenic rhizobacteria demonstrated jasmonic acid-and ethylene-dependent induced systemic resistance (ISR) that is effective against different pathogens. In the present work, the mutant analyses showed similarity of the rhizobacteriaand Trichoderma-ISR signaling pathways in which components from the jasmonic acid and ethylene response are engaged to trigger a defense reaction. However, not only jasmonic acid and ethylene but also other phytohormones such as abscisic acid, auxin and gibberellic acid are involved in activating resistance mechanisms in Arabidopsis against Botrytis cinerea.