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  • 1
    Electronic Resource
    Electronic Resource
    Experimental Transmission of Trypanosoma numidae Wenyon to Guinea Fowl and Chickens in Tanzania (1973)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 20 (1973), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Trypanosoma numidae Wenyon, 1909 from the peripheral blood of Numida mitrata (guinea fowl) and Gallus domesticus (domestic chicken) underwent change and multiplication in the ornithophilic simuliids, Simulium adersi and a species of the Simulium impukane group, and in the mammalophilic species, Simulium vorax and Simulium nyasalandicum. Trypanosomes appeared in the peripheral blood of guinea fowl and chickens following the experimental transfer of flagellates from these flies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1973.tb00917.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Life Cycles of Leucocytozoon dubreuili Mathis and Leger, 1911 and L. fringillinarum Woodcock, 1910 (Haemosporidia: Leucocytozoidae) (1970)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 17 (1970), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS The development of Leucocytozoon dubreuili and L. fringillinarum was studied on successive days in simuliid and avian hosts. Sporogony of both parasites is completed in at least 5 species of sylvatic Simuliidae in a minimum of 4-5 days at 21 C. The pattern of development of the 2 species is similar but the size of the oocysts and the number of sporozoites differ. Sporozoites of L. dubreuili and L. fringillinarum were injected into uninfected robins (Turdus m. migratorius) and grackles (Quiscalus quiscula versicolor), respectively. Hepatic biopsies were performed on some of the injected birds. These and others were killed at intervals following inoculation and their tissues examined to detect stages of schizogony. Blood and macerated tissues from birds injected with sporozoites were transferred to uninfected birds to determine whether asexual stages would develop in the latter as a result of the inoculations.The 1st asexual cycle of L. dubreuili is completed in hepatic parenchymal cells in a minimum of 84 hr. Merozoites produced by the hepatic schizonts apparently follow one of 3 courses: invade hepatic parenchymal cells to initiate another cycle; penetrate blood cells and become gametocytes; penetrate tubular cells of the kidneys and grow into renal schizonts.The minimum prepatent period in infections with L. fringillinarum is 76 hr. The 1st asexual cycle occurs in hepatic parenchymal cells and in tubular cells of the kidney. A schizogonic cycle is completed in a minimum of 72 hr in the former and 96 hr in the kidney. Merozoites from the primary hepatic schizonts apparently give rise to (a) gametocytes; (b) secondary hepatic schizonts; (c) renal schizonts. Thus the schizogonic cycles of L. dubreuili and L. fringillinarum differ from each other and from those of L. simondi in ducks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1970.tb04742.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Elongate and Round Gametocytes of Leucocytozoon simondi (Mathis & Léger) in Ducks Inoculated with Megaloschizonts (1971)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 18 (1971), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Single megaloschizonts give rise to elongate and round gametocytes, the former outnumbering the latter. Male and female elongate gametocytes develop from merozoites of a single megaloschizont. Elongate gametocytes were seen 2–7 days and round gametocytes 6–11 days after megaloschizonts had been inoculated into ducklings. Experimental evidence indicates that merozoites of megaloschizonts invade blood cells and develop into elongate gametocytes. Other merozoites infect tissue cells and develop into secondary exoerythrocytic schizonts which give rise to round gametocytes. Relapse in Leucocytozoon simondi infections is discussed in relation to megaloschizont-induced exoerythrocytic schizogony.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1971.tb03374.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Haematozoa in Domestic Chickens and Guinea Fowl in Tanzania and Transmission of Leucocytozoon neavei and Leucocytozoon schoutedeni (1973)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 20 (1973), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Leucocytozoon neavei and Leucocytozoon caulleryi were found in guinea fowl in Tanzania and Leucocytozoon schoutedeni in chickens. The minimum time required for sporogony of L. neavei at approximately 20 C was ∼7 days in Simulium adersi and Simulium nyasalandicum. Gametocytes of L. neavei, which appeared mature, were seen in the peripheral blood of guinea fowl chicks 14 days after experimenal inoculation with sporozoites from S. adersi or S. nyasalandicum. Sporogony of L. schoutedeni was followed in “Simulium impukane,” S. adersi, Simulium vorax and S. nyasalandicum. Oocysts were ∼12 μm in diameter. Sporogony of some individuals was completed in 6–7 days at 20 C. Each oocyst produced ∼50–60 sporozoites. Gametocytes were detected in the peripheral blood of a chicken 10–14 days after experimental inoculation with sporozoites of L. schoutedeni from S. adersi and “S. impukane.”
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1973.tb00918.x
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    Paper (German National Licenses)
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