Plant non-specific lipid-transfer proteins transfer phospholipids as well as galactolipids across membranes. May play a role in wax or cutin deposition in the cell walls of expanding epidermal cells and certain secretory tissues. Expressed in roots, mesocotyls and devoloping leaves. By abscisic acid (ABA) and salicylic acid (SA). Down-regulated by salt treatment. Belongs to the plant LTP family.