Fig. 7From: The Pseudomonas syringae effector AvrPtoB targets abscisic acid signaling pathway to promote its virulence in ArabidopsisThe working model. ABA is catalyzed to 8’-hydroxyl ABA by CYP707As, a group of P450-type mono-oxygenases, to maintain ABA signal homeostasis in Arabidopsis plants. During Pst infection, the pathogen-delivered effector AvrPtoB degrades CYP707As via 26S proteasome. As a result, ABA is accumulated, which leads to increased susceptibility to PstBack to article page