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  • Title: Maturation of Theileria sergenti in salivary glands of Haemaphysalis longicornis induced by temperature stimulation.
    Author: Sasaki N, Takahashi K, Kawamoto S, Kurosawa T, Sonoda M, Kawai S.
    Journal: Nihon Juigaku Zasshi; 1990 Jun; 52(3):495-501. PubMed ID: 2117090.
    Abstract:
    The parthenogenetic Haemaphysalis longicornis larvae engorged on cattle naturally infected with Theileria sergenti were reared at 24 degrees C. The resultant nymphal ticks were incubated at 37 degrees C to clear the effect of incubation on the development and maturation of sporozoites. The sporozoites in the salivary glands of the nymphal ticks exposed to 37 degrees C for 16 days were observed by the methyl green pyronin staining method. The ticks exposed to 37 degrees C were ground up in a mortar and the supernatant of the tick suspension in PBS was inoculated into cattle. The cattle showed parasitemia and specific antibody response 18 days after inoculation. Consequently, the parasites in the tick salivary glands became infective to cattle by incubating infected. H. longicornis nymphs at 37 degrees C.
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