Miquel Jordi, Foronda Pilar, Torres Jordi, Swiderski Zdzisław, Feliu Carlos
Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Spain.
Parasitol Res. 2009 Jun;104(6):1477-83. doi: 10.1007/s00436-009-1351-y. Epub 2009 Feb 11.
The ultrastructural characters of the mature spermatozoon of Taenia taeniaeformis are described by means of transmission electron microscopy. Materials were obtained from a naturally infected road-killed cat (Felis catus) from La Palma (Canary Islands, Spain). The mature spermatozoon of T. taeniaeformis is a filiform cell, which is tapered at both extremities and lacks mitochondria. It is characterised by the presence of (1) a single spirallised crested body about 140 nm thick, (2) a single axoneme of the 9+'1' pattern of trepaxonematan Platyhelminthes, (3) a twisted (40 degrees ) layer of submembranous cortical microtubules, (4) a periaxonemal sheath surrounding the axoneme, (5) transverse intracytoplasmic walls and (6) a spirallised nucleus encircling the axoneme. The mature spermatozoon of T. taeniaeformis is also characterised by the presence of an apical cone in its anterior extremity and by the disorganisation of the axoneme in its posterior extremity. The ultrastructural characters of the mature spermatozoon of T. taeniaeformis are compared with those of other cestodes studied to date, with particular emphasis on other representatives of the family Taeniidae.
利用透射电子显微镜描述了带状绦虫成熟精子的超微结构特征。材料取自西班牙加那利群岛拉帕尔马岛一只自然感染的被车撞死的猫（家猫）。带状绦虫的成熟精子是一种丝状细胞，两端逐渐变细且没有线粒体。其特征在于存在：（1）一个约140纳米厚的单螺旋嵴体；（2）一个具有扁形动物三鞭毛模式9 + '1'的单轴丝；（3）一层扭曲（40度）的膜下皮质微管；（4）围绕轴丝的轴丝周鞘；（5）横向胞质壁；（6）围绕轴丝的螺旋状细胞核。带状绦虫的成熟精子还具有前端有顶锥以及后端轴丝紊乱的特征。将带状绦虫成熟精子的超微结构特征与迄今研究的其他绦虫进行了比较，特别强调了带科的其他代表物种。
