Upton S J, Freed P S, Freed D A, McAllister C T, Goldberg S R
Division of Biology, Kansas State University, Manhattan 66506.
J Wildl Dis. 1992 Apr;28(2):326-9. doi: 10.7589/0090-3558-28.2.326.
Macroscopic cysts measuring less than or equal to 860 x 500 microns were found in the testes of a flat-backed toad, Bufo maculatus, collected in Cameroon, West Africa. On histologic examination, the cysts contained numerous spores of a Myxobolus sp. (Myxozoa: Myxobolidae). Spores in fixed tissues measured 9.2 microns long, 8.9 microns wide, and 4.0 microns thick; the range of values for length, width, and thickness were 8.8 to 9.6 microns, 8.6 to 9.4 microns, 3.6 to 4.4 microns, respectively (n = 20). The shape index (length/width) was 1.03, and ranged from 1.00 to 1.09. Pathology was limited to a slight constriction of adjacent seminiferous tubules by the cysts. No host inflammatory response was noted. This myxozoan is distinct from all other members of the genus infecting anurans and is assigned the name Myxobolus bufonis sp. n.
在西非喀麦隆采集的一只黄斑蟾蜍(Bufo maculatus)的睾丸中发现了大小小于或等于860×500微米的肉眼可见囊肿。组织学检查显示,囊肿内含有大量粘孢子虫属(Myxozoa: Myxobolidae)的孢子。固定组织中的孢子长9.2微米,宽8.9微米,厚4.0微米;长度、宽度和厚度的取值范围分别为8.8至9.6微米、8.6至9.4微米、3.6至4.4微米(n = 20)。形状指数(长度/宽度)为1.03,范围为1.00至1.09。病理学表现仅限于囊肿对相邻生精小管造成轻微压迫。未观察到宿主炎症反应。这种粘孢子虫与感染无尾两栖类的该属所有其他成员不同,被命名为Bufonis粘孢子虫新种(Myxobolus bufonis sp. n.)