Observations on the lipids ofOochoristica agamae (Cestoda)
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An investigation of the lipids ofOochoristica agamae, an anoplocephalid cestode of theAgama lizard, was undertaken. Total lipids of the parasite accounted for 8.4% of the fresh weight; neutral lipids comprised 82.98% of the total, glycolipids, 5.01%, and phospholipids, 12.03%. The major lipid classes inO. agamae include triglycerides, cholesterol, phosphatidyl choline, and phosphatidyl ethanolamine. The 16-and 18-carbon fatty acids were predominant in the parasite. Hexadecenoic acid, usually found at low concentrations in the lipids of helminth parasites, was the most abundant of the 16-carbon fatty acids ofO. agamae (notably in the neutral lipid fraction). Although octadecatrienoic acid occurred only in trace amounts in the intestinal contents of the host, significant amounts of this fatty acid were detected in the parasite. A lack of 20-carbon fatty acids was determined in the lipids of the host's intestinal contents and the neutral lipid fraction of the parasite.O. agamae is suspected to be capable of modifying fatty acids obtained from dietary sources by chain elongation.
KeywordsLipid Cholesterol Triglyceride Choline Phosphatidyl Choline
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- Aisien SO, Onyeari F (1988) Comparative studies on the lipid composition of some parasitic nematodes of theAgama lizard. Int J Parasitol 18:553–555Google Scholar
- Aisien SO, Opute FI, Ali SN, Obiamiwe BA (1986) Lipid composition of adultFoleyella agamae. Int J Parasitol 16(6):655–657Google Scholar
- Bailey HH, Fairbairn D (1968) Lipid metabolism in helminth parasites: V. Absorption of fatty acids and monoglycerides from micellar solution byHymenolepis diminuta (Cestoda). Comp Biochem Physiol 26:819–836Google Scholar
- Erwin J, Bloch K (1964) Biosynthesis of unsaturated fatty acids in micro-organisms. Science 43:1006–1012Google Scholar
- Fast PG (1970) Insect lipids. In: Holman RT (ed) Progress in the chemistry of fats and other lipids, Vol 11, ch 3. Pergamon Press, Oxford, New York, Toronto, pp 181–242Google Scholar
- Kates M (1972) Techniques of lipidology. North-Holland, ArasterdamGoogle Scholar
- Osagie AU, Kates M (1984) Lipid composition of millet (Pennisetum americanum) seeds. Lipids 19(2):958–965Google Scholar
- Read CP, Simmons JE Jr (1963) Biochemistry and physiology of tapeworms. Physiol Rev 436(2):263–305Google Scholar