Polygalactolipids in spinach chloroplasts

Plant Physiol. 1969 Nov;44(11):1523-7. doi: 10.1104/pp.44.11.1523.


Two polygalactolipids, designated as components A and B, were isolated from spinach chloroplasts and were also obtained from glycolipid products synthesized with chloroplast enzymes using uridine diphosphate galactose as a galactose donor. These lipids were purified by column and thin layer chromatography. Chemical analysis of component A indicates that the lipid is trigalactosyl diglyceride, whereas component B behaves like tetragalactosyl diglyceride on a thin layer plate. The major fatty acid in trigalactosyl diglyceride was alpha-linolenic acid. Relative amount (molar ratio) of galactolipids in spinach chloroplasts was monogalactosyl diglyceride:digalactosyl diglyceride:trigalactosyl diglyceride:(tetragalactosyl diglyceride) = 60:30:5:1.

MeSH terms

  • Chloroplasts / analysis*
  • Galactose / analysis
  • Glycerides / analysis
  • Lipids / analysis*
  • Plants, Edible / analysis


  • Glycerides
  • Lipids
  • Galactose