Gudmundsdottir B, Skirnisson K
Laboratory of Parasitology, Institute for Experimental Pathology, Keldur, University of Iceland, IS-112 Reykjavik, Iceland.
Parasitol Res. 2006 Nov;99(6):659-62. doi: 10.1007/s00436-006-0210-3. Epub 2006 May 24.
Fecal samples from 56 adult reindeer from eastern Iceland were examined for coccidian parasites. One Eimeria species was found in an 8-year-old male. Prevalence of infection was 1.8%; oocyst per gram (opg) value was 150. The coccidium was identified and described as a new species. The sporulated oocysts are ellipsoidal and average size is 30.0 x 21.1 microm. The oocyst has two distinct walls. Wall thickness is approximately 1.0 microm, and the outer wall, approximately four-fifths of total thickness, is generally smooth and appears bicoloured. The outermost portion is light blue, and the innermost portion, yellow to pale brown. The inner wall is dark brown. Oocysts contain a prominent polar granule but are devoid of a micropyle. Oocysts enclose four spindle-shaped sporocysts with a rounded end opposite to the Stieda body. The average size of sporocysts is 15.3 x 6.5 microm. Sporocysts contain a granular sporocyst residuum that usually forms a cluster between the sporozoites and one large refractile body in each sporozoite.
对来自冰岛东部的56头成年驯鹿的粪便样本进行了球虫寄生虫检测。在一头8岁的雄性驯鹿中发现了一种艾美耳属物种。感染率为1.8%；每克粪便中的卵囊数（opg）为150。该球虫被鉴定并描述为一个新物种。孢子化卵囊呈椭圆形，平均大小为30.0×21.1微米。卵囊有两层明显的壁。壁厚约1.0微米，外壁约占总厚度的五分之四，通常光滑，呈双色。最外层为浅蓝色，最内层为黄色至浅棕色。内壁为深棕色。卵囊含有一个明显的极粒，但没有微孔。卵囊内包有四个纺锤形的子孢子囊，其圆端与斯氏体相对。子孢子囊的平均大小为15.3×6.5微米。子孢子囊含有颗粒状的子孢子囊残体，通常在子孢子之间形成一簇，每个子孢子内有一个大的折光体。
