LP2 — Lactuca sativa

Summary

LsLP2 (LP2) on chromosome 1 of garden lettuce encodes a non-specific lipid-transfer protein (nsLTP) belonging to the bifunctional inhibitor/LTP/seed storage superfamily. The protein exhibits lipid carrier activity, lipid binding, and IgE binding, and is associated with phospholipid transfer to membranes, lipid transport, cutin anabolism and cuticle development, plant epidermal cell differentiation, programmed cell death, defense response, and digestion. It localizes to the plant-type cell wall, plasmodesmata, plasma membrane, Golgi, endosome, trans-Golgi network, cytosol, and extracellular space. The gene is associated with photosynthetic rate, drought tolerance, cold tolerance, osmotic stress tolerance, flowering time, shoot development and branching, hypocotyl elongation, gravitropism, cuticle permeability and integrity, flower development, pollen tube growth, seed set, root development, and longitudinal cell elongation. Studies of related genes in other species connect the family to pathogen resistance, salt stress tolerance, yield, and nitrogen use efficiency.