Figure 1
From: Bacterial pathogens encode suppressors of RNA-mediated silencing
Multiple lines of plant defenses against bacterial pathogens. Recognition of pathogen-associated molecular patterns (PAMPs) by the plant cell induces PAMP-triggered immunity (PTI; green arrow), which involves the coordinated expression and repression of plant-cell genes to combat pathogen growth. Bacterial pathogens such as Pseudomonas syringae inject effector proteins (orange shapes) into the host cell to reprogram the proteome and transcriptome for susceptibility (orange arrow). Recognition of effector proteins by host proteins (purple hexagon) induces a second line of defense, effector-triggered immunity (ETI; purple arrow).