LP2 — Daucus carota subsp. sativus

Summary

DCAR_023978 (DcLP2) on carrot chromosome 7 encodes a non-specific lipid-transfer protein (nsLTP) belonging to the bifunctional inhibitor/LTP/seed storage superfamily. The product exhibits lipid carrier and lipid binding activities and is associated with phospholipid transfer to membranes, lipid transport, cutin-based cuticle development, and plant epidermal cell differentiation. DcLP2 has been linked to cuticle integrity and permeability, drought tolerance and response, gravitropism, hypocotyl elongation, flower development, and photosynthetic rate. It is also associated with defence responses against fungi, programmed cell death, somatic embryogenesis, and killing of cells of other organisms. The protein localises to the plant-type cell wall, plasmodesmata, plasma membrane, Golgi complex, endosome, and trans-Golgi network. Studies of related genes in other species link the family to cuticle-cell wall interface integrity, pathogen resistance, and salt stress tolerance.