IRT1 — Brassica napus

Summary

BnIRT1 (DARMORV10_A01P11640.1) on chromosome A01 of oilseed rape encodes a ZIP family metal transporter with iron channel activity and transmembrane transporter activities for copper, manganese, zinc, and cadmium ions. The gene is associated with metal homeostasis, iron deficiency response and tolerance, and metal ion transport including cadmium, zinc, and nickel. It has been linked to photosynthetic rate, chlorophyll content, leaf chlorosis, carotenoid content, stomatal resistance, germination rate, and plant growth and development traits. Additional associations include pollen germination, cellular response to hypoxia, response to bacteria, signal transduction, and downregulation of abscisic acid mediated signaling. The encoded protein localizes to the plasmalemma, endosome, late endosome membrane, and ESCRT I complex. Related genes in other species link the family to iron uptake and transport, plant growth, and metal accumulation.