"Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies"@en . "Spermiogenesis of the tapeworm Parabothriocephalus gracilis is characterized by the formation of a zone of differentiation with two centrioles associated with striated rootlets, and an intercentriolar body between them. The two flagella undergo a rotation of 90 until they become parallel to the median cytoplasmic extension with which they fuse. Electron-dense material is present in the apical region of the zone of differentiation in the early stages of spermiogenesis. The mature spermatozoon contains two axonemes of the 9 + '1' trepaxonematan pattern, nucleus, parallel cortical microtubules and electron-dense granules of glycogen. The anterior extremity of the spermatozoon exhibits a single helical electron-dense crested body 130 nm thick. One of the most interesting features is the presence of a ring of cortical microtubules surrounding the axoneme. This character has been reported only for species of the order Bothriocephalidea and may be unique in this cestode group."@en . . "Freeman, M." . "289205" . . . "[EAB67BE9EA62]" . . "Eucestoda; Bothriocephalidea; Parabothriocephalus gracilis; spermiogenesis; spermatozoon; ultrastructure"@en . . . . . "000274236600009" . . . . "RIV/60077344:_____/10:00342872!RIV11-GA0-60077344" . . . "Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies" . "PL - Polsk\u00E1 republika" . . "Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies" . "\u0160\u00EDpkov\u00E1, Lenka" . "Scholz, Tom\u00E1\u0161" . . . "RIV/60077344:_____/10:00342872" . . "Levron, C\u00E9line" . . . "3"^^ . "Acta Parasitologica" . "Levron, C\u00E9line" . "1230-2821" . . . . "I, P(GA524/08/0885), P(GP524/07/P039), P(LC522), S, V, Z(AV0Z60220518)" . "1" . "Spermiogenesis of the tapeworm Parabothriocephalus gracilis is characterized by the formation of a zone of differentiation with two centrioles associated with striated rootlets, and an intercentriolar body between them. The two flagella undergo a rotation of 90 until they become parallel to the median cytoplasmic extension with which they fuse. Electron-dense material is present in the apical region of the zone of differentiation in the early stages of spermiogenesis. The mature spermatozoon contains two axonemes of the 9 + '1' trepaxonematan pattern, nucleus, parallel cortical microtubules and electron-dense granules of glycogen. The anterior extremity of the spermatozoon exhibits a single helical electron-dense crested body 130 nm thick. One of the most interesting features is the presence of a ring of cortical microtubules surrounding the axoneme. This character has been reported only for species of the order Bothriocephalidea and may be unique in this cestode group." . . . "4"^^ . . "Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies"@en . "8"^^ . "55" . .