MSP3 — Capsicum annuum

Summary

CaMSP3 (T459_20991, also known as CaWRKY34, CaWRKY2, or WRKY34) on pepper chromosome 7 encodes a WRKY transcription factor 34 with sequence-specific DNA binding, transcription cis-regulatory region binding, and protein homodimerization activities. It localises to the nucleus and is associated with pollen germination, positive regulation of leaf senescence, abscisic acid-mediated signalling in stomatal movement, and responses to chitin, fungi, bacteria, salicylate, and gibberellin. The gene is also linked to chemotaxis, nitrogen fixation, biofilm formation, quorum sensing, cell polarization, and lipid metabolism. Associations with disease tolerance, pollen development, flowering time, seed germination, embryo development, zygote polarity, abiotic stress response, and photomorphogenesis have been noted. Related genes in other species are linked to cold tolerance, pathogen resistance, anthocyanin content, root length, plant height, and chlorophyll content.