PEPR1 — Arabidopsis thaliana

Summary

AT1G73080 (PEPR1) on Arabidopsis thaliana chromosome 1 encodes a leucine-rich repeat receptor-like serine/threonine kinase with guanylyl cyclase activity and peptide receptor activity. PEPR1 is associated with pattern-triggered immunity, defence responses to bacteria, salicylic acid biosynthesis, and the regulation of stomatal closure. It has been connected to innate immunity, systemic immunity, and resistance to herbivores. The gene is linked to leaf necrosis, chlorosis, root development traits including root length and lateral root number, seed dormancy, anthocyanin content, lignin content, and brassinosteroid sensitivity. PEPR1 localises to the plasma membrane, endosomes, plasmodesmata, and the nucleus. Studies of related genes in other species link the family to PAMP-triggered immunity, calcium signalling, and phosphate uptake.