IRT1 — Solanum lycopersicum

Summary

SOLYC02G069190.4, designated IRT1 (also known as SlIRT1, SlIRT2, SlZIP10 or ZIP10) on tomato chromosome 2, encodes a member of the ZIP family of metal transporters with zinc, iron, copper, manganese and cadmium ion transmembrane transporter activity, as well as phosphoinositide, ubiquitin and mRNA binding. The gene is associated with metal ion transport, including zinc import, cadmium transport and nickel cation transport, and with cellular and multicellular organismal iron ion homeostasis, response to iron and nitrate, and tropism. Associations with shoot fresh weight, proline, sugar and protein content, root length, and plant growth and development traits have been recorded, along with links to iron deficiency tolerance, photosynthetic efficiency, chlorophyll content, chloroplast development, disease resistance, and cadmium detoxification and accumulation. The protein localises to the plasmalemma, endosome, late endosome membrane and nucleus.