Salgado-Miranda Celene, Pliego-León Grecia Ernestina, Soriano-Vargas Edgardo
Animal Health Research Center, Faculty of Veterinary Medicine and Animal Production, Autonomous University of the State of Mexico, Toluca 50295, Mexico.
Institute for Biodiversity Research, Development & Sustainability (iBIRDS A.C.), Toluca 50000, Mexico.
J Vet Med Sci. 2020 Apr 15;82(4):494-496. doi: 10.1292/jvms.20-0042. Epub 2020 Mar 6.
Up to now, four coccidian species have been identified in Rallidae (Aves: Gruiformes): Eimeria mongolica, E. alakuli, E. paludosa and E. porphyrulae. Here, we described an Eimeria species, E. paludosa, from a common gallinule (Gallinula galeata) in Mexico. Oocysts were ovoid and wall pitted single-layered. A prominent micropyle was present, the oocyst residuum absent and the polar granule was present. On histological examination of tissues, endogenous stages (meronts, microgametocytes and macrogametocytes) were seen in the epithelial cells of the small intestine (upper and lower intestine). In addition to a new locality, this is the first description of E. paludosa from G. galeata and is the third description of a coccidian infecting Rallidae in the Americas.
截至目前，在秧鸡科（鸟类：鹤形目）中已鉴定出四种球虫：蒙古艾美耳球虫、阿拉库利艾美耳球虫、沼泽艾美耳球虫和紫秧鸡艾美耳球虫。在此，我们描述了一种来自墨西哥普通黑水鸡（黑水鸡属）的艾美耳球虫——沼泽艾美耳球虫。卵囊呈卵圆形，壁为单层且有凹坑。有一个明显的卵孔，无卵囊残体，有极粒。对组织进行组织学检查时，在小肠（上肠和下肠）的上皮细胞中发现了内发育阶段（裂殖体、小配子体和大配子体）。除了一个新的产地外，这是首次对来自黑水鸡的沼泽艾美耳球虫进行描述，也是美洲地区对感染秧鸡科的球虫的第三次描述。
