Abstract
Betaine lipids are detected in the limited species of plants including algae. Three types of betaine lipids have been reported up to now. The structure of DGCC(diacylglyceryl-3-O-carboxyhydroxymethylcholine) was determined in Pavlova lutheri (Haptophyceae). DGCC was found to be one of the common coustituents of Haptophyceae. The aim of the present work was to analyze the fatty acids and polar lipids in CCMP504(Haptophyceae) to clarify the biosynthesis of betaine lipids in Haptophyceae. The principal polar lipid components in CCMP504 were galactolipids (MGDG,DGDG,SQDG) and betaine lipids (DGCC,DGTA). An analysis of the incorporation of 14C-labelled compounds into the algal cells indicated that methionine might be a precursor of polar moieties of DGCC and DGTA. 14C-choline was converted to only DGCC. 14C-DGTS as a intermediate was not detected, suggesting that the biosynthetic pathway of DGTA in CCMP504 was different from that in Ochromonas danica. The biosynthesis of DGCC was seemed to be independent of that of DGTA in CCMP504.
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© 2003 Springer Science+Business Media Dordrecht
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Kato, M., Kobayashi, Y., Torii, A., Yamada, M. (2003). Betaine Lipids in Marine Algae. In: Murata, N., Yamada, M., Nishida, I., Okuyama, H., Sekiya, J., Hajime, W. (eds) Advanced Research on Plant Lipids. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0159-4_3
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DOI: https://doi.org/10.1007/978-94-017-0159-4_3
Publisher Name: Springer, Dordrecht
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