Abstract
Changes in the contents and compositions of lipid classes and water-soluble components were examined in maturing soybean seed. At the first stage of seed development, trigly-ceride formation was very slow, and considerably large quantity of free fatty acids, phosphatidic acid, monoglyceride, and diglyceride were accumulated. At the second stage triglycerides were produced rapidly and the other components decreased. Glycerophosphate also appeared in the maturing seed. These results suggest that Kennedy's pathway to triglycerides and other side pathway occur in seed. Positional distribution of fatty acids in mono-, di-, and triglycerides was also determined, and synthetic process of glyceride structure was discussed.
