LP2 — Asparagus officinalis

Summary

AoLP2 (LP2) on asparagus chromosome 2 encodes a non-specific lipid-transfer protein (nsLTP) belonging to the bifunctional inhibitor/LTP/seed storage superfamily. The product exhibits lipid carrier activity, lipid binding, and IgE binding, and is associated with phospholipid transfer to membranes, lipid transport, cutin-based cuticle development, plant epidermal cell differentiation, programmed cell death, and seed trichome elongation. It localises to the plasmalemma, plant-type cell wall, plasmodesmata, Golgi, endosome, and TGN. The gene is linked to photosynthetic rate, drought tolerance, cuticle permeability, gravitropism, hypocotyl elongation, shoot development and branching, flower development, pollen tube growth, seed set, and cold and osmotic stress tolerance. Studies of related genes in other species connect the family to pathogen resistance, salt stress tolerance, yield, and nitrogen use efficiency.