Plant cell walls have the remarkable property of combining extreme tensile strength with
extensibility. The maintenance of such an exoskeleton creates nontrivial challenges for the
plant cell: How can it control cell wall assembly and remodeling during growth while
maintaining mechanical integrity? How can it deal with cell wall damage inflicted by
herbivores, pathogens, or abiotic stresses? These processes likely require mechanisms to
keep the cell informed about the status of the cell wall. In yeast, a cell wall integrity (CWI) …