Spermiogeneze a ultrastruktura tasemnice Triaenophorus nodulosus (Pallas, 1781) z řádu Pseudophyllidea

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Spermiogenesis and sperm ultrastructure of the pseudophyllidean cestode Triaenophorus nodulosus (Pallas, 1781)

Popis výsledku v původním jazyce

Spermiogenesis and ultrastructure of the spermatozoon of Triaenophorus nodulosus was studied by transmission electron microscopy. Spermiogenesis involves firstly the formation of a zone of differentiation with two centrioles associated with striated roots, and an intercentriolar body between them, subsequent growth of the two flagella of unequal length, and a formation of a median cytoplasmic process. The mature spermatozoon is filiform and contains two axonemes of 9 + ?1? pattern, nucleus, cortical microtubules parallel to the spermatozoon axis, and electron-dense granules. The anterior extremity of the gamete contains a single centriole surrounded by numerous electron-dense tubular structures exhibiting spiral arrangement and giving rise to lateral projections that correspond to the crested body. When the crested body disappears, the spiral pattern of electron-dense tubular structures is changed into a ring. This structure of the crested body is unique among the Eucestoda.

Název v anglickém jazyce

Spermiogenesis and sperm ultrastructure of the pseudophyllidean cestode Triaenophorus nodulosus (Pallas, 1781)

Popis výsledku anglicky

Spermiogenesis and ultrastructure of the spermatozoon of Triaenophorus nodulosus was studied by transmission electron microscopy. Spermiogenesis involves firstly the formation of a zone of differentiation with two centrioles associated with striated roots, and an intercentriolar body between them, subsequent growth of the two flagella of unequal length, and a formation of a median cytoplasmic process. The mature spermatozoon is filiform and contains two axonemes of 9 + ?1? pattern, nucleus, cortical microtubules parallel to the spermatozoon axis, and electron-dense granules. The anterior extremity of the gamete contains a single centriole surrounded by numerous electron-dense tubular structures exhibiting spiral arrangement and giving rise to lateral projections that correspond to the crested body. When the crested body disappears, the spiral pattern of electron-dense tubular structures is changed into a ring. This structure of the crested body is unique among the Eucestoda.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EA - Morfologické obory a cytologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Parasitology Research

ISSN

0932-0113

e-ISSN

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Svazek periodika

98

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

26-33

Kód UT WoS článku

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EID výsledku v databázi Scopus

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