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Abstract
Phospholipids were isolated from tea pollen. Phosphatidylcholine (PC), phosphatidylethanol-amine (PE), phosphatidylinositol (PI), and phosphatidylglycerol accounted for 54, 34, 6, and 1% of total phospholipids, respectively. Major fatty acid constituents of these lipids were 16:0 and 18:3, Fatty acid compositions of PE and PI changed during pollen germination, with an increase in 16:0 and a decrease in 18:3. Major molecular species of PC isolated from ungerminated pollen were 1-16:0-2-18: 3-PC (60%) and 1-18: 3-2-18: 3-PC (25%). PE had a molecular species quite similar to PC. These chemical compositions of phospholipids seem to be related to a feature of tea plant pollination at low temperatures.