Isospora coerebae n. sp. (Apicomplexa: Eimeriidae) from the bananaquit Coereba flaveola (Passeriformes: Coerebidae) in South America

Berto, Bruno Pereira; Flausino, Walter; Luz, Hermes Ribeiro; Ferreira, Ildemar; Lopes, Carlos Wilson Gomes

doi:10.1590/s1984-29612011000100005

Cited by 5 publications

(6 citation statements)

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“…As observed in the current study, a few variations in SB and SSB (Figure 1b, c) were also observed in sporocysts of I. similisi according to Grulet et al (1982), Berto et al (2009aBerto et al ( , b, c, 2010Berto et al ( , 2011a, Coelho et al (2011a, b) and Pereira et al (2011); however, these variations are not significant enough to separate and describe it as new species. These variations could possibly be the result of the sporulation process, the position of the SZ inside of the sporocyst, or the position of the oocyst and sporocyst under the coverslip.…”

Section: Discussionsupporting

confidence: 70%

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

Coelho

Berto

Neves

et al. 2013

Rev. Bras. Parasitol. Vet.

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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.

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Section: Discussionsupporting

confidence: 70%

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

Coelho

Berto

Neves

et al. 2013

Rev. Bras. Parasitol. Vet.

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“…According to Carvalho (2009), it is possible that cross-transmission to a second genus in the family took place following the introduction of northern cardinals into South America for captive breeding purposes. Levine et al (1980), Wobester & Cawthorn (1985), Upton et al (1985), Upton et al (1985), McQuistion & Wilson (1988;, McQuistion (1990), Ball & Daszak (1997), Berto et al (2008dBerto et al ( , 2011a. Scale-bar: 10 lm b Syst Parasitol (2011) Remarks: This represented the third species described by Carvalho-Filho et al (2005) from double-collared seedeaters held in captivity at CETAS/IBAMA.…”

Section: Host: Family Tyrannidae Vigorsmentioning

confidence: 92%

“…In contrast, the Isospora spp. commonly have uniform oöcyst walls, and consequently it is necessary to observe additional features in order to achieve a confident identification (Grulet et al, 1982;Berto et al, 2008aBerto et al, , 2009aBerto et al, ,b,c, 2010cBerto et al, , 2011a.…”

Section: Morphology and Diagnosismentioning

confidence: 99%

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Coccidia of New World passerine birds (Aves: Passeriformes): a review of Eimeria Schneider, 1875 and Isospora Schneider, 1881 (Apicomplexa: Eimeriidae)

et al. 2011

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In the New World, the avian order Passeriformes comprises 47 families and 2,453 species, yet to date only 21 (45%) of the families and 58 (2%) of the species have been examined for coccidia, and from these only two species of Eimeria Schneider, 1875 and 81 species of Isospora Schneider, 1881 have been described. This review contributes to our understanding of the morphology and systematics of coccidian parasites of passeriforms, providing a scientific basis for the identification of sporulated oöcysts recovered from the faeces of passerine birds from North, Central and South America. To this end, the coccidia were organised and grouped according to the family of the host, following the widely recognised concept of family-specificity and the updated systematics of the class Aves. Details of 83 eimeriid species are presented along with an illustration and tabulated data.

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“…In this context, these variations are likely to be subtle and may possibly be observed in sporocysts of a single oocyst. However, if these variations are evident in distinct oocysts, it is possible that the host contains two different species, as was described by Berto et al (2011c) for Isospora coerebae and Isospora cagasebi from bananaquits Coereba flaveola (BERTO et al, -d, f, 2009a(BERTO et al, -f, 2010b(BERTO et al, , d, 2011b(BERTO et al, , c, 2013aBALTHAZAR et al, 2009b;COELHO et al, 2011aCOELHO et al, , b, 2013PEREIRA et al, 2011). Figure 2 illustrates and provides suggestions for denominations for the main types and shapes of Stieda and substieda bodies that have previously been described in the literature.…”

Section: Complex Of Stieda and Substieda Bodiesmentioning

confidence: 94%

Studies on coccidian oocysts (Apicomplexa: Eucoccidiorida)

Berto

McIntosh

Lopes

2014

Rev. Bras. Parasitol. Vet.

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106

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The oocysts of the coccidia are robust structures, frequently isolated from the feces or urine of their hosts, which provide resistance to mechanical damage and allow the parasites to survive and remain infective for prolonged periods. The diagnosis of coccidiosis, species description and systematics, are all dependent upon characterization of the oocyst. Therefore, this review aimed to the provide a critical overview of the methodologies, advantages and limitations of the currently available morphological, morphometrical and molecular biology based approaches that may be utilized for characterization of these important structures. It has become apparent that no single methodology is sufficient to fully characterize these structures and the majority of researchers favor the use of combinational or polyphasic approaches.

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Isospora coerebae n. sp. (Apicomplexa: Eimeriidae) from the bananaquit Coereba flaveola (Passeriformes: Coerebidae) in South America

Cited by 5 publications

References 4 publications

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

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

Coccidia of New World passerine birds (Aves: Passeriformes): a review of Eimeria Schneider, 1875 and Isospora Schneider, 1881 (Apicomplexa: Eimeriidae)

Studies on coccidian oocysts (Apicomplexa: Eucoccidiorida)

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