Figure 7. Model for the structure and regulation of the basal defense or tolerance response mediated by OsAPX8 through PTI (pathogen-associated molecular pattern triggered immunity) pathway.

Os8N3/Xa13 is induced in the chloroplast inner membrane by PXO99 through the ETI (effector-triggered immunity) pathway, where it interacts with tAPX to reduce its ability to detoxify the H₂O₂. The arrows indicate the positive regulation of the pathway, whereas blunted lines indicate the negative regulation of the pathway.