About: Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies

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About: Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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. 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)
Title	Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies (en)
skos:prefLabel	Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies (en)
skos:notation	RIV/60077344:_____/10:00342872!RIV11-GA0-60077344
http://linked.open...avai/riv/aktivita	I P S V Z
http://linked.open...avai/riv/aktivity	I, P(GA524/08/0885), P(GP524/07/P039), P(LC522), S, V, Z(AV0Z60220518)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Scholz, Tomáš Šípková, Lenka Levron, Céline
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	289205
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/10:00342872
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Eucestoda; Bothriocephalidea; Parabothriocephalus gracilis; spermiogenesis; spermatozoon; ultrastructure (en)
http://linked.open.../riv/klicoveSlovo	spermatozoon ultrastructure spermiogenesis Eucestoda Bothriocephalidea Parabothriocephalus gracilis
http://linked.open...odStatuVydavatele	PL - Polská republika
http://linked.open...ontrolniKodProRIV	[EAB67BE9EA62]
http://linked.open...i/riv/nazevZdroje	Acta Parasitologica
http://linked.open...in/vavai/riv/obor	GJ
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Revision of monozoic tapeworms (Cestoda: Caryophyllidea): a key to understanding the evolution of cestodes? Ultrastructure of microtriches and evolution of primitive tapeworms (Cestoda) ICHTHYOPASITOLOGY RESEARCH CENTRE
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	55
http://linked.open...iv/tvurceVysledku	Levron, Céline Scholz, Tomáš Šípková, Lenka Freeman, M.
http://linked.open...ain/vavai/riv/wos	000274236600009
http://linked.open...n/vavai/riv/zamer	Parazitismus a parazito-hostitelské vztahy na organismální, buněčné a molekulové úrovni
issn	1230-2821
number of pages	8 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Spermiogenesis and spermatozoon of the tapeworm Parabothriocephalus gracilis (Bothriocephalidea): Ultrastructural and cytochemical studies

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