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New isosporoid coccidian parasites of sayaca tanager, Thraupis sayaca, from South America

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Abstract

Three new coccidian (Apicomplexa, Eimeriidae) species from the sayaca tanager, Thraupis sayaca, from Brazil, are reported in the current study. Isospora sanhaci sp. nov. oocysts are spherical to subspherical, 22.1 × 21.0 μm, with smooth, bilayered wall, ∼1.0 μm. Micropyle, oocyst residuum and polar granule are absent, while Stieda and substieda bodies are present. Sporocysts are elongated, 17.0 × 9.9 μm. Sporocyst residuum is present, sporozoites have one refractile body and a nucleus. Isospora sayacae sp. nov. are spherical to subspherical, 28.9 × 27.4 μm, with smooth, bilayered wall, ∼1.3 μm. Micropyle, oocyst residuum and polar granule are absent, while Stieda and substieda bodies are present. Sporocysts are bottle-shaped, 23.4 × 11.8 μm and containing a sporocyst residuum and sporozoites with one refractile body and a nucleus. Isospora silvasouzai sp. nov. are spherical to subspherical, 25.5 × 22.6 μm, with a smooth, bilayered wall, ∼1.0 μm. Micropyle and oocyst residuum are absent, but one polar granule is present. Sporocysts are pyriform ellipsoidal, 17.6 × 10.5 μm. Stieda and substieda bodies and sporocyst residuum are present and sporozoites have one refractile body and a nucleus.

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Authors and Affiliations

  1. Curso de Pós-Graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro (UFRRJ) — REUNI scholarship, Rio de Janeiro, Brazil

    Bruno Pereira Berto

  2. Clínica Veterinária São Francisco, Rua São Francisco, 411, 25950-000, Teresópolis, RJ, Brasil

    Lianna M. C. Balthazar

  3. Departamento de Parasitologia Animal, Instituto de Veterinária, UFRRJ, BR-465 km 7, 23890-000, Seropédica, RJ, Brasil

    Walter Flausino & Carlos Wilson Gomes Lopes

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  1. Bruno Pereira Berto
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  2. Lianna M. C. Balthazar
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  3. Walter Flausino
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  4. Carlos Wilson Gomes Lopes
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Correspondence to Bruno Pereira Berto.

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Berto, B.P., Balthazar, L.M.C., Flausino, W. et al. New isosporoid coccidian parasites of sayaca tanager, Thraupis sayaca, from South America. Acta Parasit. 54, 90–94 (2009). https://doi.org/10.2478/s11686-009-0014-6

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  • DOI: https://doi.org/10.2478/s11686-009-0014-6

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