Paperna Ilan
Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, Rehovot 76-100, Israel.
Folia Parasitol (Praha). 2003 Jun;50(2):89-96. doi: 10.14411/fp.2003.016.
Eimeria jamescooki sp. n. was recovered from the skink Cryptoblepharus virgatus (Garman) found on the grounds of James Cook University, Townsville (type locality), North Queensland, Australia. Oocysts were 17.5-25.0 (22.1 +/- 1.9) x 15-22.5 (17.7 +/- 1.6) microm and sporocysts 6.25-10.0 (7.9 +/- 1.15) x 3.75-6.25 (5.3 +/- 1.0) microm in size. Endogenous stages are described from histological material examined by light microscope and by transmission electron microscope. Both merogony stages and gamonts were found to develop in the cytoplasm of the anterior gut mucosal epithelium. Meront progeny were comprised of 10 to 21 merozoites. Premature macrogamonts were elongate; some host cells contained two elongate macrogamonts. Unique to the presently described species were the Golgi "plaques" and an enclosure of tubuli. Mature macrogamonts and young oocysts ranged in size from 14 x 7 to 21 x 11 microm and contained two types of wall-forming bodies, canaliculi and amylopectin granules. Differentiating microgamonts conformed in fine structure with that observed in other eimerians. Their sizes increased from 15.4 x 4.2 to 28 x 8.4 microm while dividing to over 70 nuclei, which formed a corresponding yield of microgametes.
新种詹姆斯库克艾美球虫（Eimeria jamescooki sp. n.）是从澳大利亚北昆士兰汤斯维尔市詹姆斯库克大学校园内发现的绿眼壁虎（Cryptoblepharus virgatus (Garman)）体内分离得到的（模式产地）。卵囊大小为17.5 - 25.0（22.1 ± 1.9）× 15 - 22.5（17.7 ± 1.6）微米，孢子囊大小为6.25 - 10.0（7.9 ± 1.15）× 3.75 - 6.25（5.3 ± 1.0）微米。通过光学显微镜和透射电子显微镜对组织学材料进行检查，描述了其内源性发育阶段。裂殖生殖阶段和配子体均在前肠黏膜上皮细胞的细胞质中发育。裂殖体后代由10至21个裂殖子组成。早熟的大配子体呈细长形；一些宿主细胞含有两个细长的大配子体。目前描述的该物种特有的结构是高尔基体“板层”和微管包围结构。成熟的大配子体和幼卵囊大小范围为14×7至21×11微米，含有两种壁形成体，即小管和支链淀粉颗粒。正在分化的小配子体在精细结构上与其他艾美球虫属的观察结果一致。它们在分裂形成70多个细胞核时，大小从15.4×4.2微米增加到28×8.4微米，相应地产生了微配子。
