LP1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0198690, designated LP1 (HvLP1) on barley chromosome 2H, encodes a non-specific lipid-transfer protein (nsLTP) belonging to the bifunctional inhibitor/LTP/seed storage superfamily. The product exhibits lipid carrier, chitin-binding, chitosan-binding, calcium ion-binding, calmodulin-binding, and protein serine/threonine kinase activities. LP1 is associated with phospholipid transfer to membranes, cutin-based cuticle development, lipid transport, plant epidermal cell differentiation, somatic embryogenesis, and responses to chitin, mechanical stimulus, and molecules of bacterial or fungal origin. It localises to the apoplast, plant-type cell wall, plasmodesmata, secretory vesicle, Golgi, endosome, and plastid. The gene is linked to traits including abscisic acid and jasmonic acid content, bacterial blight disease resistance, flowering time, leaf senescence, seed growth and development, protein content, and salt tolerance. Studies of related genes in other species connect the family to cuticle integrity, pathogen resistance, and yield.