Biochemical and Physiological Studies of Certain Ticks (Ixodoidea). Phospholipid classes in eggs, larvae, and hemolymph of Argas (Persicargas) arboreus (Argasidae) and Dermacentor andersoni (Ixodidae)12

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Abstract
The changing patterns of the phospholipid (PL) classes of Dermacentor andersoni (Stiles) (Ixodidae) and Argas (Persicargus) arboreus Kaiser, Hoogstraal & Kohls (Argasidae) were qualitatively and quantitatively studied during embryogenesis and oogenesis. Seven PL classes were determined in thin-layer chromatographic (TLC) analysis of extractable lipids of different physiological states of these 2 tick species. During the ticks' developmental cycles, and in the blood of their hosts, the major phosphatides, in decreasing order of relative concentration, were phosphatidylcholine (PC), phosphatidylethanolamine (PE), sphingomyclin (SM), and lysophosphatidylcholine (LPC). Minor classes (trace-5%) were phosphatidylinositol (PI), diphosphatidylglycerol (DPG), and phosphatidic acid (PA). Minor classes were not detected in lipid extracts of rabbit and pigeon host blood chromatographed under the same conditions.