LP1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.3HG0227420, designated HvLP1 on barley chromosome 3H, encodes a non-specific lipid-transfer protein (nsLTP) belonging to the Plant_nsLTP family. The product exhibits lipid carrier, lipid binding, chitosan binding, chitin binding, calmodulin binding, calcium ion binding, and multiple protein kinase activities, including transmembrane receptor and serine/threonine kinase activity. HvLP1 is associated with phospholipid transfer, cutin-based cuticle development, lipid transport, plant epidermal cell differentiation, somatic embryogenesis, and responses to chitin, mechanical stimulus, and molecules of bacterial and fungal origin. It localizes to the apoplast, plant-type cell wall, plasmodesma, secretory vesicle, Golgi, endosome, and plastid. The gene is linked to abscisic acid and jasmonic acid content, bacterial blight disease resistance, flowering time, leaf senescence, seed growth, protein content, salt tolerance, and stomatal closure. Studies of related genes in other species connect the family to cuticle integrity, pathogen resistance, freezing tolerance, and yield.