AMT1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.6HG0595580, designated HvAMT1 on barley chromosome 6H, encodes an ammonium transporter family protein with ammonium channel activity and additional peptide hormone binding, receptor, and kinase activities. The gene is associated with ammonium membrane transport, ammonia homeostasis, nitrate import, and responses to nitrate starvation, flooding, osmotic stress, nematodes, and symbiotic fungi. It is linked to lateral root branching and formation, regulation of root and shoot development, stomatal opening, and protein polymerization. The product localizes to the plasma membrane, plasmodesmata, and extracellular regions. Associations with agronomic traits include lateral root number and length, root thickness, leaf morphology, grain yield, grain filling, seed traits, nitrogen content, and disease and salt tolerance. Related genes in other species connect the family to ammonium uptake and lateral root extension.