WRKY5 — Capsicum annuum

Summary

CaWRKY6 (T459_19960, also known as WRKY5, WRKY6, or WRKY31) on pepper chromosome 7 encodes a WRKY transcription factor 6 with sequence-specific DNA binding, promoter-specific chromatin binding, protein homodimerization activity, and ATP binding. It localizes to the nucleus. This gene is associated with regulation of defense responses, including regulation of antifungal innate immune response, inhibition of defense response to bacteria, and responses to chitin, bacterial and fungal molecules, salicylate, and stress. It is linked to abscisic acid-mediated signaling in stomatal movement, gibberellin metabolism and signaling, positive regulation of leaf senescence, protein oxidation, detoxification, and virus-induced PTGS. Associations with proline content and salt response have been noted. Studies of related genes in other species link the family to drought tolerance, leaf water potential, leaf temperature, stomatal resistance, and chlorophyll content.