FIGURE 7 A model for B. cereus AR156 induces systemic resistance against multiple pathogens by priming of phytoalexin synthesis and secretion.
The root colonization of AR156 induces systemic resistance to different pathogens in Arabidopsis . AR156 induces camalexin accumulation by employing the transcription factor WRKY33 to regulate the expression of genes related to camalexin synthesis. On the other hand, AR156 relies on PEN3 and PDR12 to transfer accumulated camalexin outside the cell allowing for protection against multiple pathogens.