Boying Cai

Conservation of PTI-ETI interactions in other species While the PTI-ETI interplay were mostly studied in the model plant Arabidopsis thaliana so far, an important question is whether the same principle applies to other plant species.

Highlights • P. syringae infection induces ABA responses and stomatal closure in the plant leaf • P. syringae effector AvrE targets TOPP proteins in Arabidopsis to alter ABA signaling • AvrE induces ABA accumulation and stomatal closure for water soaking • ABA pathway is indispensable for P. syringae-induced water soaking and disease Summary Phytopathogens like Pseudomonas syringae induce “water soaking” in the apoplastic space of plant leaf tissue as a key virulence mechanism.