AM25 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0751150 (HvAM25) on barley chromosome 7H encodes an aquaporin-like protein belonging to the MIP (major intrinsic protein) family, with transmembrane transporter activities for lactate, arsenite, silicate, glycerol, borate, urea and water, as well as channel activity. The gene is associated with transport and responses to boron, arsenic, hypoxia, glucose and defense, and with detoxification and nodulation processes. It localises to the plasma membrane, lateral plasma membrane, Casparian strip and ER. HvAM25 is linked to boron uptake and deficiency tolerance, arsenite tolerance and uptake, aluminum tolerance and translocation, urea uptake, and root-to-shoot translocation. Related genes in other species are associated with silicon transport, salt stress, reproductive development, grain traits, and biomass and yield components including grain number, seed weight and harvest index.