Isospora mionectesi sp. nov. (Apicomplexa, Eimeriidae) from the grey-hooded flycatcher, Mionectes rufiventris in Brazil

2009 ◽  
Vol 54 (4) ◽  
Author(s):  
Bruno Berto ◽  
Walter Flausino ◽  
Hermes Luz ◽  
Ildemar Ferreira ◽  
Carlos Lopes
Keyword(s):  
Refractile Body ◽  
Stieda Body ◽  
Sporocyst Residuum ◽  
Polar Granules ◽  
Oocyst Residuum

AbstractA new isosporoid coccidian (Apicomplexa, Eimeriidae) species from the grey-hooded flycatcher, Mionectes rufiventris, from Brazil, is reported in the current study. Isospora mionectesi sp. nov. oocysts are ellipsoidal, 28.3 × 21.2 µm, with smooth, bilayered wall, ∼1.3 µm. Micropyle and oocyst residuum are absent, but one or two polar granules are present. Sporocysts are elongate ellipsoidal, 19.7 × 11.7 µm. Stieda body rounded and substieda body prominent. Sporocyst residuum is subspherical and compact. Sporozoites are vermiform with one refractile body and a nucleus.

Eimeria psittacarae n. sp. (Apicomplexa: Eimeiriidae) from white-eyed parakeets Psittacara leucophthalmus (Müller, 1776) (Psittaciformes: Psittacidae) kept for rehabilitation and reintroduction in the Parque Nacional da Serra dos Órgãos, Southeastern Brazil

Zootaxa ◽  
2018 ◽  
Vol 4459 (1) ◽  
pp. 164
Author(s):  
PRISCILA TUCUNDUVA ◽  
MARIANA BORGES RODRIGUES ◽  
RAQUEL BATISTA JUNGER DE CARVALHO ◽  
BRUNO PEREIRA BERTO
Keyword(s):  
New Species ◽  
New World ◽  
Refractile Body ◽  
Stieda Body ◽  
Southeastern Brazil ◽  
Sporocyst Residuum ◽  
Polar Granules ◽  
A New Species ◽  
Oocyst Residuum

A new species of coccidia (Protozoa: Apicomplexa: Eimeriidae) found parasitizing the white-eyed parakeet Psittacara leucophthalmus (Müller, 1776) in Brazil is described. Eimeria psittacarae n. sp. has oocysts that are ellipsoidal, 34.8 × 24.3 μm, with smooth, bilayered wall, ~1.7 μm thick. Micropyle present. Oocyst residuum absent, but one or two polar granules are present. Sporocysts are elongate ellipsoidal, 19.2 × 9.7 μm. Stieda body knob-like and sub-Stieda body rounded. Sporocyst residuum is composed of granules that appear to be membrane-bounded. Sporozoites are vermiform with one refractile body and a nucleus. This is the sixth description of an eimeriid coccidium parasitizing a New World psittacine. 

Coccidial dispersion across trans- and cis-Andean antbirds (Passeriformes: Thamnophilidae): Isospora sagittulae (Apicomplexa: Eimeriidae) from nonsympatric hosts

2014 ◽  
Vol 92 (5) ◽  
pp. 383-388 ◽  
Author(s):  
B.P. Berto ◽  
B.doB. Lopes ◽  
R.D. Melinski ◽  
A.H.N. de Souza ◽  
C.C. Ribas ◽  
...  
Keyword(s):  
Brazilian Amazon ◽  
Refractile Body ◽  
Stieda Body ◽  
Amazon Forest ◽  
Sporocyst Residuum ◽  
Polar Granules ◽  
Common Scale ◽  
Hylophylax Naevioides ◽  
Oocyst Residuum

Isospora sagittulae McQuistion and Capparella, 1992 (Protozoa: Apicomplexa: Eimeriidae) is reported from White-throated Antbirds (Gymnopithys salvini (Berlepsch, 1901)) and from Common Scale-backed Antbirds (Willisornis poecilinotus (Cabanis, 1847)), which are thamnophilid birds from the Brazilian Amazon. Its oocysts are ovoidal to ellipsoidal, 28.4 μm × 22.4 μm, with smooth, bilayered wall, 1.1 μm. Micropyle and oocyst residuum are absent, but one to three polar granules are present. Sporocysts are subspherical to ovoidal, 15.0 μm × 12.6 μm. Stieda body thin and flattened and substieda body triangular to round. Sporocyst residuum composed of scattered granules. Sporozoites with refractile body and nucleus. This coccidium was originally described from the Spotted Antbird (Hylophylax naevioides (Lafresnaye, 1847)), a trans-Andean antbird that is not sympatric with G. salvini and W. poecilinotus, which are cis-Andean antbirds from lowland Amazon forest; therefore, this current study presents some assumptions to explain the dispersion of I. sagittulae among antbird species.

scholarly journals Isospora albicollis (Apicomplexa: Eimeriidae) in thrushes Turdus spp. (Passeriformes: Turdidae), in southeastern Brazil

2017 ◽  
Vol 26 (2) ◽  
pp. 231-234 ◽  
Author(s):  
Irlane Faria de Pinho ◽  
Lidiane Maria da Silva ◽  
Mariana Borges Rodrigues ◽  
Mariana de Souza Oliveira ◽  
Bruno do Bomfim Lopes ◽  
...  
Keyword(s):  
National Park ◽  
Polar Granule ◽  
Refractile Body ◽  
Wide Distribution ◽  
Stieda Body ◽  
Southeastern Brazil ◽  
New Host ◽  
Sporocyst Residuum ◽  
New Localities ◽  
Oocyst Residuum

Abstract The aim of the present study was to report and describe Isospora albicollis Lainson and Shaw, 1989 parasitizing a white-necked thrush Turdus albicollis Vieillot, 1818 and a pale-breasted thrush Turdus leucomelas Vieillot, 1818 in two different localities: the Itatiaia National Park and Cacaria, in southeastern Brazil. The oocysts identified were ovoidal, 24.4 × 19.7 μm, with a smooth, bilayered wall, around 1.4 μm thick. Oocyst residuum was absent, but a micropyle and a polar granule were present. The sporocysts were ellipsoidal, 15.4 × 10.1 μm. The Stieda body was knob-like to rounded and the sub-Stieda body was prominent and wide. Sporocyst residuum was present, usually as a cluster of granules that appear to be membrane-bounded. The sporozoites were vermiform with one posterior refractile body and a centrally located nucleus. Besides recording the new host T. leucomelas, the identification of I. albicollis in the Itatiaia National Park and Cacaria, in southeastern Brazil, provide records of new localities for its parasitism, and reveals the wide distribution and dispersion of this coccidium in Brazil.

scholarly journals Isospora machadoae sp. nov. (Protozoa: Apicomplexa: Eimeriidae), a new coccidian species from white-necked thrushes Turdus albicolis (Passeriformes: Turdidae) of South America

2018 ◽  
Vol 35 ◽  
pp. 1-4 ◽  
Author(s):  
Irlane F. de Pinho ◽  
Lidiane M. da Silva ◽  
Mariana B. Rodrigues ◽  
Bruno do B. Lopes ◽  
Mariana S. Oliveira ◽  
...  
Keyword(s):  
South America ◽  
Clinical Signs ◽  
Refractile Body ◽  
Southeastern Brazil ◽  
Ecological Niches ◽  
Sporocyst Residuum ◽  
Polar Granules ◽  
Parque Nacional Do Itatiaia ◽  
Coccidian Species ◽  
Oocyst Residuum

A new coccidian species parasitizing white-necked thrushes Turdus albicollis Vieillot, 1818 is described from the Parque Nacional do Itatiaia, in Southeastern Brazil. Isospora machadoae sp. nov. has oocysts that are sub-spherical, 22.2 × 21.2 µm, with bilayered wall, ~1.3 μm thick. Outer layer is rough with micropyle and micropyle cap. Oocyst residuum is absent, but one or two polar granules are present. Sporocysts are ellipsoidal, 13.3 × 9.7 µm. The Stieda body is flattened to half-moon-shaped and substieda body rounded. Sporocyst residuum is present, composed of scattered spherules of different sizes. Sporozoites are vermiform with a refractile body and a nucleus. These parasitized thrushes had no apparent clinical signs of coccidiosis or high densities of oocysts in feces. This condition may be associated with a specific low pathogenicity of I. machadoae sp. nov. and/or with the conserved habitat of these birds, which ensures the ecological niches and thus the immunocompetence to wildlife.

Isospora ramphoceli n. sp. (Apicomplexa: Eimeriidae) from the Brazilian tanager (Aves: Passeriformes: Thraupidae) Ramphocelus bresilius dorsalis Sclater, 1855

Zootaxa ◽  
2010 ◽  
Vol 2650 (1) ◽  
pp. 57 ◽  
Author(s):  
BRUNO PEREIRA BERTO ◽  
WALTER FLAUSINO ◽  
HERMES RIBEIRO LUZ ◽  
ILDEMAR FERREIRA ◽  
CARLOS WILSON GOMES LOPES
Keyword(s):  
Polar Granule ◽  
Refractile Body ◽  
Stieda Body ◽  
Sporocyst Residuum ◽  
Coccidian Species ◽  
Oocyst Residuum

In the current study, a new coccidian species (Protozoa: Apicomplexa: Eimeriidae) collected from the Brazilian tanager Ramphocelus bresilius dorsalis Sclater, 1855 is reported from Brazil. Isospora ramphoceli n. sp. has oocysts which are spherical to sub-spherical, 23.7 × 22.8 μ m, with smooth, bilayered wall, ~1.2 μ m thick. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are ellipsoidal or slightly ovoidal, 16.0 × 11.4 µm. Stieda body knob-like and prominent and substieda body large and homogeneous. Sporocyst residuum is composed of granules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus. This is the sixth description of an isosporoid coccidium infecting R. b. dorsalis and the twelfth description from Thraupidae.

scholarly journals Oocyst shedding by green-winged-saltator (Saltator similis) in the diagnostic of coccidiosis and Isospora similisi n. sp. (Apicomplexa: Eimeriidae)

2013 ◽  
Vol 22 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Cleide Domingues Coelho ◽  
Bruno Pereira Berto ◽  
Daniel Medeiros Neves ◽  
Vinícius Modesto de Oliveira ◽  
Walter Flausino ◽  
...  
Keyword(s):  
Refractile Body ◽  
Wild Birds ◽  
Diurnal Periodicity ◽  
Stieda Body ◽  
Coccidian Parasite ◽  
Sporocyst Residuum ◽  
Fecal Samples ◽  
Late Afternoon ◽  
In Captivity ◽  
Oocyst Residuum

Diurnal periodicity is a phenomenon that has been observed in coccidian of Isospora parasites of passerines, which have been eliminated great number of oocysts at dusk. The objective of this study was to evaluate the occurrence of periodicity of oocysts presence in the green-winged-saltator Saltator similis, and its use in the diagnosis of coccidiosis in wild birds in captivity. A total of 220 fecal samples were collected from birds, apprehended from illegal trading and kept in quarantine in CETAS∕IBAMA, in the morning and late afternoon, from May to November 2010. It was observed that 1.82% of the samples collected in the morning were positive, while 31.36% of samples were positive in the late afternoon. In addition, the number of oocysts shed was greater in the afternoon. Therefore, it was concluded that the sampling in the late afternoon provided greater reliability for the diagnosis of coccidiosis in green-winged-saltators. Moreover, in this study a new isosporoid coccidian parasite from the green-winged-saltator S. similis was observed and is herein described. Isospora similisi n. sp. oocysts are spheroidal to sub-spheroidal, 27.5 × 25.9 µm, with a smooth and bi-layered wall, ∼1.2 mm. Micropyle and oocyst residuum are absent, but splinter-like or comma-like granules are present. Sporocysts are ellipsoidal or slightly ovoidal, 17.4 × 12.2 mm. A stieda body and substieda body are present. The sporocyst residuum is composed of granules of different sizes. Sporozoites are vermiform with a single refractile body and a nucleus. This is the fourth description of an isosporoid coccidium infecting S. similis and the sixth description from Cardinalidae.

The round stingray, Urolophus halleri (Rajiformes: Dasyatidae), as a host for Eimeria chollaensis sp.nov. (Apicomplexa: Eimeriidae)

1988 ◽  
Vol 66 (9) ◽  
pp. 2049-2052 ◽  
Author(s):  
Steve J. Upton ◽  
Scott Lyell Gardner ◽  
Donald W. Duszynski
Keyword(s):  
Gulf Of California ◽  
Polar Granule ◽  
Refractile Body ◽  
Stieda Body ◽  
Sporocyst Residuum ◽  
Spiral Valve ◽  
Spherical Mass ◽  
Oocyst Residuum

Eimeria chollaensis sp.nov. (Apicomplexa: Eimeriidae) is described from the contents of the spiral valve of the round stingray, Urolophus halleri Cooper (Rajiformes: Dasyatidae), from the Gulf of California, Sonora, Mexico. Oocysts are ovoid, 13.3 × 9.7 (11.2–16.0 × 8.0–10.8) μm, with a smooth, thin, single-layered wall. Micropyle, polar granule, and oocyst residuum are absent. Sporocysts are ovoid, 8.9 × 4.9 (8.0–10.0 × 4.2–5.6) μm, and possess a Stieda body but no substieda body. Sporozoites are elongate, with numerous transverse striations anteriorly and a single, ovoid refractile body. The sporocyst residuum consists of a compact spherical mass 2.5 (2.0–3.4) μm in diameter.

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

2011 ◽  
Vol 56 (3) ◽  
Author(s):  
Cleide Coelho ◽  
Bruno Berto ◽  
Daniel Neves ◽  
Vinícius Oliveira ◽  
Walter Flausino ◽  
...  
Keyword(s):  
South America ◽  
Polar Granule ◽  
Common Species ◽  
Refractile Body ◽  
Stieda Body ◽  
Sporocyst Residuum ◽  
Coccidian Species ◽  
Oocyst Residuum

AbstractTwo 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.

scholarly journals Coccidian parasites in the endangered Forest Musk Deer (Moschus berezovskii) in China, with the description of six new species of Eimeria (Apicomplexa: Eimeriidae)

Parasite ◽  
2021 ◽  
Vol 28 ◽  
pp. 70
Author(s):  
Yunyun Gao ◽  
Donald W. Duszynski ◽  
Fulin Yuan ◽  
Defu Hu ◽  
Dong Zhang
Keyword(s):  
New Species ◽  
Stieda Body ◽  
Musk Deer ◽  
Sporocyst Residuum ◽  
Fecal Samples ◽  
Polar Granules ◽  
Coccidian Parasites ◽  
Oocyst Residuum

We examined 674 fresh fecal samples from forest musk deer (Moschus berezovskii Flerov) in Sichuan and Shaanxi Provinces, China, for coccidian oocysts and 65% were infected with Eimeria spp. Previously, only four Eimeria species were known from Moschus spp. Here we describe six new Eimeria species. Eimeria aquae n. sp., in 38% deer, has ovoidal oocysts, 32.0 × 23.0 μm, micropyle (M) and scattered polar granules (PGs) of various sizes are present, sometimes oocyst residuum (OR) is present; ovoidal sporocysts, 14.1 × 7.5 μm, with Stieda body (SB) and sporocyst residuum (SR). Eimeria dolichocystis n. sp., in 11% deer; cylindroidal oocysts, 36.6 × 18.9, with a M, 1 PG and OR; ovoidal sporocysts, 13.9 × 7.7, with SB and SR. Eimeria fengxianensis n. sp., in 7% deer; ovoidal oocysts, 36.3 × 25.2, a M and PGs present but OR absent; ovoidal sporocysts, 13.9 × 7.3, with SB and SR. Eimeria helini n. sp. in 24% deer; subspheroidal oocysts, 27.0 × 24.1, OR and PGs often present, but M absent; ovoidal sporocysts, 13.5 × 7.7, with SB and SR. Eimeria kaii n. sp. in 26% deer; ovoidal oocysts, 33.2 × 20.7, M and PGs present, but OR absent; ovoidal sporocysts, 14.4 × 7.5, with SB and SR. Eimeria oocylindrica n. sp., in 17% deer; cylindroidal oocysts, 36.0 × 21.4, M and 1-2 PGs present but OR absent; ovoidal sporocysts, 13.8 × 7.7, with SB and SR. Eimeria dujiangyanensis n. nom. is proposed to replace E. moschus Sha, Zhang, Cai, Wang & Liu, 1994, a junior homonym of E. moschus Matschoulsky, 1947.

Isospora brasilsatoae n. sp. (Apicomplexa: Eimeriidae) from thrushes Turdus spp. (Passeriformes: Turdidae) from Brazil

Zootaxa ◽  
2019 ◽  
Vol 4555 (3) ◽  
pp. 433 ◽  
Author(s):  
MARIANA S. OLIVEIRA ◽  
JHON LENNON G. OLIVEIRA ◽  
MARIANA B. RODRIGUES ◽  
LIDIANE MARIA SILVA-CARVALHO ◽  
LUCAS DE ASSIS S. ANDRADE ◽  
...  
Keyword(s):  
New Species ◽  
New World ◽  
Stieda Body ◽  
Southeastern Brazil ◽  
Sporocyst Residuum ◽  
Polar Granules ◽  
A New Species ◽  
Oocyst Residuum

A new species of coccidia (Protozoa: Apicomplexa: Eimeriidae) found parasitizing the yellow-legged thrush Turdus flavipes (Vieillot, 1818), the pale-breasted thrush Turdus leucomelas Vieillot, 1818 and the creamy-bellied thrush Turdus amaurochalinus Cabanis, 1850 in Southeastern Brazil is described. Isospora brasilsatoae n. sp. has oocysts that are ovoidal to pyriform, 26.8 × 21.1 μm, with smooth, bilayered wall, ~1.6 μm thick. Micropyle present. Oocyst residuum absent, but one to three polar granules are present. Sporocysts are elongate ovoidal, 18.1 × 10.5 μm. Stieda body knob-like and sub-Stieda body trapezoidal. Sporocyst residuum is composed of granules that appear to be membrane-bounded. Sporozoites are vermiform with refractile bodies and striations. This is the ninth description of an Isospora sp. parasitizing a New World thrush. 

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