HAK1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0656210, designated HvHAK1 or HAK1 on barley chromosome 7H, encodes a transmembrane receptor serine/threonine kinase with leucine-rich repeat domains and histone H2AS1 kinase activity. The gene is associated with potassium uptake in barley and has been connected to sodium uptake, brassinosteroid sensitivity, drought tolerance, and salt stress response. It is linked to the regulation of innate immune response, floral organ development, megasporogenesis, microsporogenesis, anther wall tapetum development, gametophyte development, stomatal complex development, cell growth, response to salt, heat acclimation, and detection of brassinosteroid stimulus. The encoded protein localises to the membrane, plasmodesma, cytosol, nucleus, and extracellular region. Studies of related genes in other species link the family to seed setting rate and pollen development, as well as potassium acquisition and herbivore resistance.