Chistiakova L V, Berdieva M A, Frolov A O, Gudkov A V
Tsitologiia. 2014;56(10):770-8.
Morphology of a pelobiont Pelomyxa paradoxa Penard, 1902 was investigated at light- and electron-microscopical levels. Locomoting cells are cigar-shaped. The cells produce many hyaline pseudopodia of digital and conical form at lateral sides of the body. The organism has a pronounced hyaline bulbous uroid with broad peripheral zone of hyaloplasm and many conical hyaline villi. There is a thin layer of amorphous glycocalix at the cell surface. "Structure" and food vacuoles of different size are very abundant in the endoplasm. Two different species of prokaryote endocytobionts are peculiar for P. paradoxa. Uninucleate stage dominates in the life cycle of P. paradoxa. Usually there are no more than 10-12 nuclei in multinucleate forms of P. paradoxa. Pelomyxae nuclei are closely surrounded by thick multilaminar layer and additionally by one more layer, which is formed by small vesicles with electron-dense content. Several irregular-shaped nucleoli are situated at the nucleus periphery. Inside the nucleoli, and sometimes directly in nucleoplasm the small round bodies are revealed, these bodies being formed by tightly packed electron-dense fibrils. Many non-motile flagellae are located mainly in the uroidal zone of the cell. Pronounced lateral root and 50-60 radial microtubules originate from the electrone-dense muft around the kinetosome. All elements of the rootlet system of flagella are limited by peripheral layers of cytoplasm. P. paradoxa occupy an intermediate position between two groups of species of Pelomyxa genus--P. gruberi + P. prima and P. palustris + P. stagnalis + P. belewski, which differ greatly by the organization of their flagella basal apparatus.
对1902年佩纳德发现的奇异多核变形虫（Pelomyxa paradoxa Penard）的形态进行了光学显微镜和电子显微镜水平的研究。运动的细胞呈雪茄形。细胞在身体侧面产生许多指状和锥形的透明伪足。该生物体有一个明显的透明球状尾状部，有宽阔的透明质外周区和许多锥形透明绒毛。细胞表面有一层薄薄的无定形糖萼。内质中“结构”和不同大小的食物泡非常丰富。奇异多核变形虫有两种不同的原核内共生菌。单核阶段在奇异多核变形虫的生命周期中占主导。通常，奇异多核变形虫的多核形式中细胞核不超过10 - 12个。奇异多核变形虫的细胞核被厚厚的多层膜紧密包围，此外还有一层由含有电子致密物质的小泡形成的膜。几个不规则形状的核仁位于细胞核周边。在核仁内部，有时直接在核质中可以看到小的圆形体，这些体由紧密堆积的电子致密纤维组成。许多不活动的鞭毛主要位于细胞的尾状区。明显的侧根和50 - 60条径向微管起源于动基体周围的电子致密套。鞭毛的小根系统的所有元件都被细胞质的外周层所限制。奇异多核变形虫在多核变形虫属的两组物种——格鲁贝多核变形虫（P. gruberi）+ 原多核变形虫（P. prima）和沼泽多核变形虫（P. palustris）+ 停滞多核变形虫（P. stagnalis）+ 贝列夫斯基多核变形虫（P. belewski）之间占据中间位置，这两组物种的鞭毛基部装置组织差异很大。
