A New Species of Eimeria Schneider, 1875 from the Saffron Finch, Sicalis flaveola (Aves: Passeriformes) in Brazil.

Autor: Gallo SSM; Laboratório de Sanidade Animal, Universidade Estadual de Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil., de Oliveira FCR; Laboratório de Sanidade Animal, Universidade Estadual de Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil. foliveira@uenf.br., Elizeu TKS; Laboratório de Sanidade Animal, Universidade Estadual de Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil., Ederli NB; Instituto do Noroeste Fluminense de Educação Superior, Universidade Federal Fluminense, Avenida João Jasbick, Santo Antônio de Pádua, Rio de Janeiro, 28470-000, Brazil.
Jazyk: angličtina
Zdroj: Acta parasitologica [Acta Parasitol] 2022 Sep; Vol. 67 (3), pp. 1199-1205. Date of Electronic Publication: 2022 May 19.
DOI: 10.1007/s11686-022-00566-w
Abstrakt: Purpose: The present study describes a new species of Eimeria found in free-living S. flaveola that inhabit the city of Eugenópolis in the state of Minas Gerais, Brazil.
Methods: Fecal samples from all captured birds were filtered through double gauze, mixed with 2.5% potassium dichromate (K 2 Cr 2 O 7 ), placed in a Petri dish and incubated at 23-28 °C until 70% of the oocysts were sporulated.
Results: Eimeria flaveola n. sp. from the saffron finch, Sicalis flaveola (Aves: Passeriformes), was described in Brazil. Sporulated oocysts are subspherical; 22.67 ± 1.57 (18.47-26.48) × 21.19 ± 1.42 (16.69-24.91) µm; with a shape-index of 1.07 ± 0.05 (1.00-1.25) µm and a smooth, bilayered wall, ~ 1.09 μm. A micropyle and an oocyst residuum are absent, but one polar granule is present. Sporocysts are ovoidal, 14.24 ± 1.71 (9.02-19.33) × 9.98 ± 1.02 (6.80-12.87) μm; with a shape-index of 1.43 ± 0.16 (0.74-2.11). The Stieda body is button-shaped; sub-Stieda body and para-Stieda absent. The sporocyst residuum is formed by a compact rounded mass of granules. The sporozoite is claviform, 11.53 µm in length and 2.84 µm in width, with a refractile body and a nucleus.
Conclusions: Based on its morphological and morphometric characteristics, we consider E. flaveola a newly identified species.
(© 2022. The Author(s) under exclusive licence to Witold Stefański Institute of Parasitology, Polish Academy of Sciences.)
Databáze: MEDLINE
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