MPMI is now accepting submissions for the next focus issue: Effector-triggered Susceptibility. We invite research and perspective articles that explore all aspects of effector structure, function, and evolution, encompassing the full breadth of plant-associated organisms.Articles highlighting translational research as well as fundamental understanding are welcome. Authors, get the first six pages (plus one figure) FREE for the first 15 accepted papers. Submissions due June 15, 2017.  Learn more.