Separation and characterization of inositol phospholipids from the pulvini of Samanea saman
1989
To supplement current thin-layer chromatographic methods for separation and quantitation of plant phospholipids, an alternative method, high-performance liquid chromatography was developed. The major inositol-containing lipids from the pulvini of Samanea saman Merr. were identified as phosphatidylinositol, phosphatidylinositol phosphate, and phosphatidylinositol bisphosphate based on comigration with authentic standards on high-performance liquid chromatography and on thin-layer chromatography. The patterns of incorporation of radioactivity into the putative phosphatidylinositol and phosphatidylinositol phosphate were consistent with these identifications when pulvini were labeled with [ 3 H]glycerol, [ 3 H]inositol, or [ 32 P]orthophosphate. Analysis of the products of enzymic hydrolysis, of chemical deacylation, and of `fingerprint9 methanolysis of these phospholipids confirmed the identifications.
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