Distribution of glycerogly colipids in marine algae and grasses

摘要

The distribution of monogalactosyldiacylglyceride (MGDG),digalactosyldiacylglyceride (DGDG),and sulfoquinovosyldiacylglyceride (SQDG) in red,brown,and greenalgae and marine grasses was studied.Domination of SQGD among the glycolipids is typical of brownalgae of the order Fucales.Low SQDG content with high MGDG and DGDG is typical of marine grasses.Marine algae and grasses are characterized by common trends in the distriubtion of fatty acids (FA)among the glycolipids.Polyunsaturated FA of the (n-3) series are concentrated primarily in galactolipids.The highest unsaturationin red and green algae occurs in MGDG;in brown algae and marine grasses,in DGDG.SQDG has a high content of saturated FA.