Abstract
Molecular species of the major phospholipids, phosphatidylcholine (PC, 49 % of total phospholipids), phosphatidylethanolamine (PE, 27%), and phosphatidylinositol (PI, 11%), of Lilium longiflomm pollen grains were analyzed. Fatty acid compositions (sn-l/sn-2) of major molecular species of PC, PE, and PI were 18:3/18:3, 18:2/18:3 (and/or 18:3/18:2), 18:2/18:2, 16:0/18:3, and 16:0/18:2. Molecular species compositions were quite similar among PC, PE and PI. Mature pollen grains contained more unsaturated molecular species than immature pollen grains.
