Aouina Faouzi, Kacem Hichem, Martín-Carrillo Natalia, Foronda Pilar, Miquel Jordi
Laboratoire Écologie et Environement, Faculté des Sciences de Gabès, Université de Gabès Zrig, Gabès 6072, Tunisia.
Département des Sciences de la Vie, Faculté des Sciences de Sfax, Université de Sfax, Sfax 3000, Tunisia.
Animals (Basel). 2023 Dec 19;14(1):12. doi: 10.3390/ani14010012.
Ultrastructural characters of spermiogenesis and the mature spermatozoon of the cestode (Cyclophyllidea: Catenotaeniidae), a parasite of the Lesser Egyptian gerbil () and the North African gerbil () (Rodentia: Muridae) in the Djebel Dahar (South of Tunisia), were studied using transmission electron microscopy. The spermiogenesis of is of Bâ and Marchand's type III, which is mainly characterized by a proximodistal fusion of a single flagellum with a cytoplasmic extension. In this catenotaeniid, the proximal fusion is preceded by a 90° rotation of the flagellum. The spermatozoon is a Levron et al. type VI, which presents a single axoneme with the 9 + '1' trepaxonematan pattern, a periaxonemal sheath, two crest-like bodies, twisted cortical microtubules, and a spiraled nucleus. The obtained results show similarities with the remaining studied catenotaeniids, namely and . The results are compared and discussed according to several characteristics found in the catenotaeniids and other studied cyclophyllideans.
利用透射电子显微镜对突尼斯南部杰贝勒达哈地区的小埃及沙鼠(Meriones shawi)和北非沙鼠(Meriones libycus)(啮齿目:鼠科)体内的一种绦虫(圆叶目:链尾科)精子发生及成熟精子的超微结构特征进行了研究。该链尾科绦虫的精子发生属于Bâ和马尔尚的III型,其主要特征是单根鞭毛与细胞质延伸部进行近远端融合。在这种链尾科绦虫中,近端融合之前鞭毛会进行90°旋转。精子属于勒夫龙等人的VI型,具有单根轴丝,呈9 + '1' 三鞭毛模式,有轴丝周围鞘、两个嵴状体、扭曲的皮质微管和螺旋状细胞核。所得结果与其余已研究的链尾科绦虫,即[具体名称1]和[具体名称2]相似。根据链尾科绦虫和其他已研究的圆叶目绦虫中发现的几个特征对结果进行了比较和讨论。