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

Abstract

Two 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.

Isospora bertoi n. sp. of the saffron finch, Sicalis flaveola (Aves: Passeriformes) from Brazil

“…To date, two species of Isospora have been described in S. flaveola in captivity in the Municipality of Seropedica in the State of Rio de Janeiro, Brazil, and identified as Isospora cetasiensis (Coelho et al, 2011) and Isospora sicalisi (Coelho et al, 2011). The present study describes a new species of Isospora found in free-ranging S. flaveola with habitat in the Municipality of Eugenopolis in the State of Minas Gerais (MG), Brazil.…”

“…Among the diseases that affect birds, coccidiosis is considered an important cause of enteritis and death of the species (Freitas et al, 2003;Coelho et al, 2011).…”

Gastric coccidiosis in Thoracocharax stellatus caused by Goussia guamaensis n. sp. (Apicomplexa: Eimeriidae) from the Amazon region

“…The class Coccidia is widely considered to be one of the principal groups of parasites of aquatic organisms and is known to impact the bodily condition and natural stocks of a wide range of fish species (Abollo, Calvo, & Pascual, ; Azevedo, Matos, & Matos, ; Lovy & Friend, ; Morrison & Marryatt, ). Despite their ample geographic distribution, the coccidiosis of the fish of the tropical Amazon region represents a neglected disease, due to the reduced number of studies on the diversity and dynamics of these parasitic organisms (Clark et al, ; Coelho et al, ; Molnár, Shaharom‐Harrison, & Székely, ; Székely, Borkhanuddin, Shaharom, Embong, & Molnár, ; Votypka, Modry, Obornik, Slapeta, & Lukes, ; Whipps et al, ).…”

Diversity and distribution of coccidia of wild birds in an Atlantic forest fragment area in southeastern Brazil

“…Half of the saffron finches Sicalis flaveola (Linnaeus, 1766) that were caught were positive for a coccidian species identified as Isospora cetasiensis Coelho, Berto, Neves, Oliveira, Flausino, Lopes, 2011. Sicalis flaveola is a very common bird species in Brazil and the original description of I. cetasiensis was from saffron finches that had been recovered from illegal trade and were being kept at the Center for Wild Animal Screening (Centro de Triagem de Animais Silvestres, CETAS) of the municipality of Seropédica, in the state of Rio de Janeiro, for rehabilitation and reintroduction into the wild (COELHO et al, 2011).…”

“…Sicalis flaveola is a very common bird species in Brazil and the original description of I. cetasiensis was from saffron finches that had been recovered from illegal trade and were being kept at the Center for Wild Animal Screening (Centro de Triagem de Animais Silvestres, CETAS) of the municipality of Seropédica, in the state of Rio de Janeiro, for rehabilitation and reintroduction into the wild (COELHO et al, 2011).…”