Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the double-collared seed eater, Sporophila caerulescens (Passeriformes: Emberizidae), from Eastern Brazil

Filho, Paulo Roberto de Carvalho; Meireles, Gisele Santos de; Ribeiro, Carlos Torres; Lopes, Carlos Wilson Gomes

doi:10.1590/s0074-02762005000200007

Cited by 12 publications

(14 citation statements)

References 11 publications

(14 reference statements)

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“…• I. tiaris (Ball & Daszak, 1997), described from the sooty grassquit Tiaris fuliginosus Wied in Venezuela, has smaller oöcysts than I. frontalis and I. teresopoliensis, and does not have ellipsoidal sporocysts as occur in I. chanchaoi (see Ball & Daszak, 1997). • I. sporophilae (Carvalho-Filho et al, 2005), I.…”

Section: Discussionmentioning

confidence: 99%

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Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the buffy-fronted seedeater Sporophila frontalis Verreaux (Passeriformes: Emberizidae) in South America

et al. 2009

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Three new coccidian (Apicomplexa: Eimeriidae) species from the buffy-fronted seedeater Sporophila frontalis Verraux in Brazil are reported in the current study. Isospora frontalis n. sp. oöcysts are spherical to sub-spherical, 27.9 x 26.9 mum, with a smooth, bi-layered wall c.1.4 microm thick. A micropyle and an oöcyst residuum are absent, but polar granules are present. Sporocysts are elongate ellipsoidal, 19.6 x 11.1 microm. The Stieda body is knob-like and the substieda body is slight. The sporocyst residuum is composed of scattered granules, and the sporozoites are vermiform with a refractile body and a nucleus. Isospora teresopoliensis n. sp. oöcysts are spherical to sub-spherical, 25.7 x 24.3 microm, with a smooth, bi-layered wall 1.3 microm thick. A micropyle, oöcyst residuum and polar granule are absent. Sporocysts are ovoid, 18.8 x 11.2 microm. The Stieda body is nipple-shaped and the substieda body is large and prominent. The sporocyst residuum is composed of scattered granules, and the sporozoites are large and elongate, with a refractile body and nucleus. Oöcysts of Isospora chanchaoi n. sp. are spherical to sub-spherical or ovoid, 24.2 x 22.0 microm, with a smooth, bi-layered wall c.1.2 microm thick. Both a micropyle and an oöcyst residuum are absent, but one or two polar granules are present. The sporocysts are ellipsoidal, 16.1 x 10.3 microm. The Stieda body is nipple-shaped and the substieda body is small but prominent. The sporocyst residuum forms a compact mass of granules, and the sporozoites are large and elongate, with a refractile body and a nucleus.

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Section: Discussionmentioning

confidence: 99%

“…Coccidiosis caused by species of Isospora Schneider, 1881, described in birds of the genus Sporophila Linnaeus, was first reported by Carvalho-Filho et al (2005), when oöcysts were recovered from faeces of the double-collared seedeater S. caerulescens Vieillot.…”

Section: Introductionmentioning

confidence: 99%

Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the buffy-fronted seedeater Sporophila frontalis Verreaux (Passeriformes: Emberizidae) in South America

et al. 2009

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“…Species of Isospora Schneider, 1881 has been described in birds of the family Emberizidae worldwide; however, those coccidia described in the New World assume greater importance due to the higher probability of transmission between sympatric passerines (McQuistion andWilson 1988, 1989;McQuistion 1990;Carvalho-Filho et al 2005;Berto et al 2009). …”

Section: Discussionmentioning

confidence: 99%

Two new Isospora species from the saffron finch, Sicalis flaveola in Brazil

Coelho

Berto

Neves

et al. 2011

Acta Parasitologica

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Two new coccidian species (Protozoa, Apicomplexa, Eimeriidae) are reported from the saffron finch Sicalis flaveola Linnaeus, 1766, a very common species in South America. Isospora cetasiensis sp. nov. oocysts are subspherical to ellipsoidal, 23.1 × 21.6 µm, with smooth, bilayered wall, ~1.0 μm. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are ovoidal, 15.1 × 10.9 μm. Stieda body is knob-like and substieda body is rounded. Sporocyst residuum is composed of many scattered granules and spherules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus. Isospora sicalisi sp. nov. oocysts are subspherical to ellipsoidal, 27.5 × 25.2 μm, with a smooth, bilayered wall, ~1.1 μm. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are ellipsoidal, 17.2 × 11.7 μm. Stieda body is knob-like and substieda body is trapezoidal. Sporocyst residuum is composed of scattered granules and spherules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus.

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“…To date, there are around 50 species of Isospora described from emberizids birds (http://www.ksu.edu/para- sitology/worldcoccidia/PASSER01?, de Carvalho Filho et al 2005). However, no named species have been reported from the genus Oryzoborus.…”

Section: Discussionmentioning

confidence: 99%

Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the lesser seed-finch, Oryzoborus angolensis (Passeriformes: Emberizidae) from Brazil

Silva

Literák

Koudela

2006

Mem. Inst. Oswaldo Cruz

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Three new coccidian (Apicomplexa: Eimeriidae) species are reported from the lesser seed-finch, Oryzoborus angolensis from Brazil. Sporulated oocysts of Isospora curio n. sp. are spherical to subspherical; subspherical, 17.8 × 16.9 (16-19 × 16-18) The lesser seed-finch Oryzoborus angolensis (Linnaeus, 1766) (Passeriformes: Emberizidae) is a bird distributed in open woodland, savanna, bushes, and shrubs in forest edge of Latin America. They are found from North of the Lesser Antilles through Venezuela, Brazil, and Bolivia to South Argentina (Sick 1993). The lesser seedfinches are highly coveted as pet birds and are considered to be among the noblest singing birds. This feature has made this species one of the most highly prized songbirds in Brazil and many birds are bred in captivity. These finches are also frequently trapped from the wild and, consequently, wild lesser seed-finch populations have declined.No species of Isospora have previously been described in emberizid birds of the genus Oryzoborus. The present study provides descriptions of three new species of Isospora from O. angolensis. MATERIALS AND METHODSA total of 675 O. angolensis were examined in this study. The birds originated from 48 private aviaries localized in the state of Mato Grosso do Sul, Brazil. They were reared in suspended cages and individual faecal samples were collected immediately upon defecation on tinfoil on the bottom of the cages at the different day-time. Faecal material was placed in vials containing 2.5% (w/v) potassium dichromate solution and shipped to the University of Veterinary and Pharmaceutical Sciences in Brno for follow-up examination. Faecal samples were 3-8 weeks old when screened for coccidia using flotation in Sheather's sugar solution (specific gravity 1.30). The sporulated oocysts were examined and photographed with an Olympus AX 70 microscope using Nomarski interference contrast optics (DIC). All measurements were made using a calibrated ocular micrometer and reported as means in micrometers (µm), followed by the range in parentheses. RESULTSDuring the coprological examination of the 675 O. angolensis, we detected the presence of oocysts of genus Isospora in 178 birds. The morphological evaluation of sporulated oocysts revealed three different species of Isospora that are described and discussed bellow.

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Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the double-collared seed eater, Sporophila caerulescens (Passeriformes: Emberizidae), from Eastern Brazil

Cited by 12 publications

References 11 publications

Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the buffy-fronted seedeater Sporophila frontalis Verreaux (Passeriformes: Emberizidae) in South America

Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the buffy-fronted seedeater Sporophila frontalis Verreaux (Passeriformes: Emberizidae) in South America

Two new Isospora species from the saffron finch, Sicalis flaveola in Brazil

Three new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the lesser seed-finch, Oryzoborus angolensis (Passeriformes: Emberizidae) from Brazil

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