A new coccidian, Isospora parnaitatiaiensis n. sp (Apicomplexa, Eimeriidae), from the white-shouldered fire-eye Pyriglena leucoptera (Passeriformes, Thamnophilidae) from South America

作者：da Silva Lidiane Maria; Rodrigues Mariana Borges; Lopes Bruno do Bomfim; Berto Bruno Pereira^*; Luz Hermes Ribeiro; Ferreira Ildemar; Gomes Lopes Carlos Wilson

来源：Parasitology Research, 2016, 115(2): 745-749.

DOI：10.1007/s00436-015-4798-z

• Oocysts
• Coccidia
• Morphology
• Passerines
• Parque Nacional do Itatiaia
• Conservation
• Brazil

A new coccidian species (Protozoa: Apicomplexa: Isospora) parasitizing the white-shouldered fire-eye Pyriglena leucoptera (Vieillot, 1818) is described in the Parque Nacional do Itatiaia. This park is a protected area in southeastern Brazil with a high degree of vulnerability, representing a " conservation island" of biodiversity. Isospora parnaitatiaiensis n. sp. has oocysts that are ellipsoidal, 23.8x19.4 mu m, with smooth, bilayered wall, similar to 1.1 mu m thick. Micropyle and oocyst residuum are absent, but one or two polar granules are present. Sporocysts are ellipsoidal, 14.6x9.3 mu m. The Stieda body is nipple-to knob-like and sub-Stieda body rounded to rectangular. Sporocyst residuum is present, usually as a cluster of numerous granules. Sporozoites are vermiform with two refractile bodies and a nucleus. This is the second isosporoid coccidian described from antbirds (Thamnophilidae).

• 出版日期2016-2