Pattern of Incorporation of 32P into the Phospholipids of the Rat Tapeworm Hymenolepis diminuta

Abstract

The incorporation of ³²P-orthophosphate into the phospholipids of H. diminuta was followed for up to 4 h in vitro. The rates and patterns of incorporation of ³²P into phosphatidc acid, phosphoinositide, phosphatidylserine, lecithin, lysolecithin, and phosphatidylethanolamine plus cardiolipin indicated that H. diminuta possesses mechanisms for the de novo synthesis of these phospholipids. The major pathway utilized by H. diminuta in fatty acid incorporation was via phosphatidic acid.