Effet du chlorure de sodium sur la composition lipidique de la feuille de colza (Brassica napus)

摘要

The effect of increasing NaCl concentrations up to 170ensp;mM on the lipid composition of leaf membranes was studied on rape (Brassica napusL. var.oleiferaMetzg) in hydroponic culture for one month. At NaCl concentrations lower than 102ensp;mM, the polar glycerolipid biosynthesis was stimulated. NaCl concentrations higher than 102ensp;mM reduced the contents in total lipids, monogalactosyldiacylglycerol, digalactosyldiacylglycerol, and phospholipids. In contrast, the neutral lipid contents increased with increasing NaCl concentration. An increase in NaCl induced a decrease in linolenic and hexadecatrienoic acid contents and an increase in linoleic and palmitic acid contents in all lipid groups.Key words: rape, lipids, sodium chloride.