WRKY22 — Capsicum annuum

Summary

CaWRKY22 (T459_25186) on pepper chromosome 10 encodes a WRKY transcription factor 29, a nuclear-localised protein with sequence-specific DNA binding and transcription factor activity. It is associated with the regulation of antifungal innate immune responses, abscisic acid-mediated signalling in stomatal movement, positive regulation of leaf senescence, and responses to chitin, salicylate, gibberellin, hypoxia, bacteria, and fungi. The gene has been linked to disease resistance, bacterial wilt resistance, pathogen resistance, heat tolerance, cryo-stress tolerance, ethylene sensitivity and production, senescence, defence responses, and root and hypocotyl development. Studies of related genes in other species connect the family to innate immunity, leaf senescence, submergence stress tolerance, ethylene biosynthesis, and resistance to Fusarium graminearum, as well as heading date and Fusarium head blight resistance.