PRXR1 — Cicer arietinum

Summary

LOC101500893 (CaPRXR1) on chickpea chromosome 7 encodes a secretory peroxidase with haem and calcium ion binding, annotated with lactoperoxidase and peroxidase activities. The gene is associated with hydrogen peroxide catabolism, cell wall modification, metabolic burst, ER stress response, protein secretion, and phloem transport. It is linked to leaf vascular tissue pattern formation, root and shoot morphogenesis, meristem size and organisation, and immune and stress responses including salt tolerance. Associations extend to seed set, flowering time, floral organ development, seedling growth, and disease tolerance. The product localises to the secretory vesicle, vacuole, plant-type cell wall, ER, plasmodesma, and extracellular space. Related genes in other species link the family to leaf venation and vascular development, thermotolerance, ER stress resistance, and salt and drought tolerance.