Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Carretera Toluca-Atlacomulco km 15.5, 50200, Toluca, Mexico.
Syst Parasitol. 2023 Dec;100(6):611-616. doi: 10.1007/s11230-023-10110-7. Epub 2023 Aug 30.
A new coccidian species, Isospora gilvusi n. sp. (Apicomplexa: Eimeriidae) collected from the warbling vireo Vireo gilvus, is reported from Morelia, Michoacán State, Mexico. Sporulated oöcysts of the new species are spherical to subspherical, 27-31 × 27-29 (30.1 × 28.4) μm, with a length/width (L/W) ratio of 1.1; one or two polar granules are present, but micropyle and oöcyst residuum are absent. Sporocyts are ovoid to drop-shaped, 16-17 × 11-12 (17.0 × 11.5) μm, with a L/W ratio of 1.7; Stieda and sub-Stieda bodies are both present, but para-Stieda body is absent; sporocyst residuum diffuse. At the histological study, endogenous stages were observed in the epithelial cells of the duodenum. This is the second species of Isospora recorded infecting a bird of the family Vireonidae in the New World.
一种新的球虫种，Isospora gilvusi n. sp.（顶复门：艾美耳科），从墨西哥米却肯州莫雷利亚的鸣禽绿鹃中采集到。新种的孢子化卵囊呈球形至近球形，27-31×27-29（30.1×28.4）μm，长/宽（L/W）比为 1.1；有一个或两个极粒，但无卵囊孔和卵囊残余物。孢子囊呈卵圆体形至滴状，16-17×11-12（17.0×11.5）μm，L/W 比为 1.7；有斯氏和次斯氏体，但无副斯氏体；孢子囊残余物弥散。在组织学研究中，在十二指肠的上皮细胞中观察到内源性阶段。这是在新世界记录到感染绿鹃科鸟类的第二种球虫。
