Patterns of Lipid Distribution and Utilisation in Insects

Abstract

During the course of insect evolution lipids have assumed a significant role in facilitating several important morphogenetic and physiological strategies. Stored glycerides provide a convenient reservoir of metabolic energy for periods of prolonged energy demand, while cuticular lipids are of profound importance in enabling terrestrial insects to resist dessication. The present review identifies the lipid classes of fat body, haemolymph and cuticle, and summarises the contribution of lipids to insect development, migration, diapause, protection, reproduction and flight. The release, transport and uptake of lipid during flight isdiscussed.