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  • Title: Preliminary studies of lipids of the trematodes Eurytrema pancreaticum, Calicophoron erschowi and the turbellarian Penecurva sibirica.
    Author: Vykhrestyuk NP, Yarygina GV.
    Journal: Mol Biochem Parasitol; 1982 Apr; 5(4):221-9. PubMed ID: 7099203.
    Abstract:
    The amount of total lipids, phospholipids, neutral lipids and fatty acids was determined in cattle parasites, namely the trematodes Eurytrema pancreaticum, Calicophoron erschowi, and in the free-living turbellarian Penecurva sibirica. Neutral lipids of these flatworms contained sterols, sterol esters, triacylglycerols and free fatty acids. P. sibirica also contained diacylglycerols. Parasitic and free-living flatworms differed in phospholipid composition: the turbellarian did not contain phosphatidylserine, and the trematodes had practically no sphingomyelin or lysophosphatidyl choline. E. pancreaticum, C. erschowi and P. sibirica contained high levels of phosphatidylcholine and phosphatidylethanolamine as well as lysophosphatidylethanolamine and cardiolipin. The fatty acid composition of total lipid extracts of flatworms and of the pancreas and rumen of the host animals were determined. The fatty acid composition of the flatworm lipids reflected the fatty acid composition of the host tissue but was not identical to it.
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