Spermiogenesis and sperm ultrastructure of two species of Duthiersia, parasites of monitors, with a review of spermatological characters in the Diphyllobothriidea (Cestoda)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F13%3A00397494" target="_blank" >RIV/60077344:_____/13:00397494 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jcz.2013.01.002" target="_blank" >http://dx.doi.org/10.1016/j.jcz.2013.01.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcz.2013.01.002" target="_blank" >10.1016/j.jcz.2013.01.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spermiogenesis and sperm ultrastructure of two species of Duthiersia, parasites of monitors, with a review of spermatological characters in the Diphyllobothriidea (Cestoda)

Popis výsledku v původním jazyce

The present study compares the spermiogenesis of two species of the diphyllobothriidean cestodes (family Scyphocephalidae), Duthiersia expanse and Duthiersia fimbriata, parasites of Asian and African monitors (Varanus spp.), and establishes the ultrastructural organization of the spermatozoon of D. fimbriata. The spermatids of both species are similar and exhibit a differentiation zone containing two centrioles and electron-dense material in the apical region. The centrioles are separated from one another by an inter-centriolar body and each is associated with a striated root. During the early stage of spermiogenesis, the centrioles form two flagella that grow orthogonally to the median cytoplasmic process. The orthogonal development is followed by a flagellar rotation and proximodistal fusion with median cytoplasmic process. The mature spermatozoon of D. fimbriata is characterized by the presence of two axonemes presenting the type 9+ "1" trepaxonematan pattern, parallel cortical micr

Název v anglickém jazyce

Spermiogenesis and sperm ultrastructure of two species of Duthiersia, parasites of monitors, with a review of spermatological characters in the Diphyllobothriidea (Cestoda)

Popis výsledku anglicky

The present study compares the spermiogenesis of two species of the diphyllobothriidean cestodes (family Scyphocephalidae), Duthiersia expanse and Duthiersia fimbriata, parasites of Asian and African monitors (Varanus spp.), and establishes the ultrastructural organization of the spermatozoon of D. fimbriata. The spermatids of both species are similar and exhibit a differentiation zone containing two centrioles and electron-dense material in the apical region. The centrioles are separated from one another by an inter-centriolar body and each is associated with a striated root. During the early stage of spermiogenesis, the centrioles form two flagella that grow orthogonally to the median cytoplasmic process. The orthogonal development is followed by a flagellar rotation and proximodistal fusion with median cytoplasmic process. The mature spermatozoon of D. fimbriata is characterized by the presence of two axonemes presenting the type 9+ "1" trepaxonematan pattern, parallel cortical micr

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

<a href="/cs/project/GAP506%2F12%2F1632" target="_blank" >GAP506/12/1632: Od ryby k člověku a z vody na zem: evoluce tasemnic tetrapodů (Cestoda: Diphyllobothriidea)</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Zoologischer Anzeiger

ISSN

0044-5231

e-ISSN

—

Svazek periodika

252

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

486-494

Kód UT WoS článku

000322803400007

EID výsledku v databázi Scopus

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