Ultrastructure of the spermatozoon of the proteocephalidean cestode Protheocephalus torulosus (Batsch, 1786)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F03%3A00008610" target="_blank" >RIV/60076658:12310/03:00008610 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Ultrastructure of the spermatozoon of the proteocephalidean cestode Protheocephalus torulosus (Batsch, 1786)
Original language description
The fine structure of the mature spermatozoon of the proteocephalidean tapeworm Proteocephalus torulosus, a parasite of cyprinid fishes, was studied by transmission electron microscopy for the first time. The mature spermatozoon of P. torulosus is filiform and tapered at both extremities. It contains two axonemes of the 9 + "1" type and of unequal length. The anterior extremity of the spermatozoon bears a helicoidal crested body approximately 100 nm thick. Cortical microtubules of two types lie parallelto the spermatozoon axis. The nucleus is a fine cord of condensed chromatin. The slightly electron-dense cytoplasm contains electrondense granules in regions II and III of the spermatozoon. The anterior and posterior extremities of the spermatozoon contain a single axoneme. The mature spermatozoon of P. torulosus differs from that of other Proteocephalus species in the presence of a single crested body and in the morphology of its posterior end.
Czech name
Ultrastruktura spermatozoonu u Protheocephalus torulosus (Batsch, 1786).
Czech description
Ultrastruktura spermatozoonu u Protheocephalus torulosus (Batsch, 1786).

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EG - Zoology
OECD FORD branch
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Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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