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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 100, No. 2, 2005, pp. 151-154
Bioline Code: oc05062
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 100, No. 2, 2005, pp. 151-154

 en Three new species of Isospora check for this species in other resources Schneider, 1881 (Apicomplexa: Eimeriidae) from the double-collared seed eater, Sporophila caerulescens check for this species in other resources (Passeriformes: Emberizidae), from Eastern Brazil
Paulo Roberto de Carvalho Filho; Gisele Santos de Meireles; Carlos Torres Ribeiro & Carlos Wilson Gomes Lopes

Abstract

Three isosporan species are described from the double-collared seedeater, Sporophila caerulescens check for this species in other resources from Eastern Brazil. Isospora check for this species in other resources n. sp. oocysts spherical to subspherical; oocyst wall bi-layered, smooth, inner layer colorless to pale yellowish, 21.6 χ 20.9 (19.20-23.20 χ 18.40-22.60) μm, shape-index 1.03 ± 0.02 (1-1.10), with no micropyle or oocyst residuum. Polar bodies splinter-like or comma-like. Sporocysts ovoidal, 15.2 χ 10.6 (17.40-12.80 χ 12.60-8.40) μm, shape-index 1.43 ± 0.14 (1.17-1.81), with knob-like Stieda body and residuum. Large crystalloid body in the center of the sporocyst. Isospora flausinoi check for this species in other resources n. sp. oocysts spherical to subspherical, oocyst wall bi-layered, smooth, colorless, 17.30 x 16.53 (14-20 χ 13.60-20) μm, shape-index 1.05 ± 0.04 (1-1.21). Micropyle and oocyst residuum absent; presence of a large polar body. Sporocyst piriform, 14.88 x 10.70 (11.80-18 χ 8-12.40) μm, shape-index 1.40 ± 0.18 (1.07-1.77), with smooth, thin, single-layered wall. Sporocyst with rounded Stieda body with no substieda body, and residuum composed of granular material. Isospora teixeirafilhoi check for this species in other resources n. sp. oocysts spherical to subspherical, oocyst wall bi-layered, smooth, colorless, 17.41 x 16.81 (15.60 19.40 χ 14.20-18.80) μm. Shape-index 1.04 ± 0.08 (1-1.12). Micropyle and oocyst residuum absent; presence of a small double-lobuled polar body. Sporocyst ovoid, 11.74 χ 8.12 (9-14.20 χ 6.20-9.40) μm. Shape-index 1.46 ± 0.23 (1.06-1.88). Sporocyst with knob-like Stieda body, no sub-Stieda body and residuum composed of granular material.

Keywords
Isospora sporophilae sp. n. - Isospora flausinoi sp. n. - Isospora teixeirafilhoi sp. n. - Sporophila caerulescens - double-collared seedeater - Brazil

 
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