A new coccidian, Isospora parnaitatiaiensis n. sp. (Apicomplexa, Eimeriidae), from the white-shouldered fire-eye Pyriglena leucoptera (Passeriformes, Thamnophilidae) from South America.
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, 23.8 × 19.4 μm, with smooth, bilayered wall, ~1.1 μm thick. Micropyle and oocyst residuum are absent, but one or two polar granules are present. Sporocysts are ellipsoidal, 14.6 × 9.3 μm. 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).
Curso de Pós-Graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 km 7, Seropédica, RJ, 23897-970, Brazil.
Lidiane Maria
LM
da Silva
Curso de Pós-Graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 km 7, Seropédica, RJ, 23897-970, Brazil.
Mariana Borges
MB
Rodrigues
Programa de Pós-graduação em Ciência, Tecnologia e Inovação em Agropecuária, UFRRJ, BR-465 km 7, Seropédica, RJ, 23897-970, Brazil.
Bruno do Bomfim
Bdo B
Lopes
Departamento de Biologia Animal, Instituto de Biologia, UFRRJ, BR-465 km 7, Seropédica, RJ, 23897-970, Brazil. bertobp@ufrrj.br.
Bruno Pereira
BP
Berto
Departamento de Parasitologia Animal, Instituto de Veterinária, UFRRJ, BR-465 km 7, Seropédica, RJ, 23897-970, Brazil.
Hermes Ribeiro
HR
Luz
Departamento de Biologia Animal, Instituto de Biologia, UFRRJ, BR-465 km 7, Seropédica, RJ, 23897-970, Brazil.
Ildemar
I
Ferreira
Departamento de Parasitologia Animal, Instituto de Veterinária, UFRRJ, BR-465 km 7, Seropédica, RJ, 23897-970, Brazil.
Carlos Wilson Gomes
CW
Lopes
D000818:Animals; D001715:Bird Diseases / Q000469:parasitology*; D001938:Brazil; D002467:Cell Nucleus / Q000648:ultrastructure; D003048:Coccidiosis / Q000469:parasitology / Q000662:veterinary*; D005243:Feces / Q000469:parasitology; D007549:Isospora / Q000145:classification / Q000166:cytology / Q000302:isolation & purification*; D033661:Oocysts / Q000166:cytology; D046109:Passeriformes / Q000469:parasitology*; D034101:Sporozoites / Q000166:cytology
Brazil; Coccidia; Conservation; Morphology; Oocysts; Parque Nacional do Itatiaia; Passerines