Berto Bruno P, Luz Hermes Ribeiro, Flausino Walter, Ferreira Ildemar, Lopes Carlos W G
Curso de Pós-Graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 km 7, Seropédica, RJ, 23890-000, Brazil.
Syst Parasitol. 2010 Mar;75(3):225-30. doi: 10.1007/s11230-009-9221-7. Epub 2010 Feb 16.
A new coccidian species (Protozoa: Apicomplexa: Eimeriidae) obtained from masked yellowthroat Geothlypis aequinoctialis (Gmelin) is reported from Brazil. Isospora piacobrai n. sp. has oöcysts which are subspheroidal to ovoidal, measure 15.8 x 10.5 microm and have a smooth, bilayered wall c. 1.2 microm thick. A micropyle and oöcyst residuum are absent, but a polar granule is present. Its sporocysts are ovoidal and measure 15.8 x 10.5 microm. The Stieda body is knob-like and prominent, the substieda body large, trapezoidal and homogeneous, and the sporocyst residuum composed of granules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus. This is the first description of an isosporoid coccidian infecting a bird of the family Parulidae.
据报道，在巴西发现了一种从黄喉地莺（Geothlypis aequinoctialis，Gmelin）体内获得的新球虫物种（原生动物：顶复门：艾美耳科）。皮阿科布瑞等孢球虫（Isospora piacobrai n. sp.）的卵囊呈近球形至卵形，大小为15.8×10.5微米，壁光滑，双层，厚约1.2微米。无微孔和卵囊残体，但有极粒。其孢子囊呈卵形，大小为15.8×10.5微米。斯氏体呈瘤状且突出，亚斯氏体大，呈梯形且均匀，孢子囊残体由不同大小的颗粒组成。子孢子呈蠕虫状，有一个折光体和一个细胞核。这是对感染森莺科鸟类的等孢球虫的首次描述。
