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Parasitology Research

, Volume 114, Issue 1, pp 201–208 | Cite as

Spermatological characteristics of the genus Taenia inferred from the ultrastructural study on Taenia hydatigena

  • Jordi MiquelEmail author
  • Khalid Khallaayoune
  • Samira Azzouz-Maache
  • Anne-Françoise Pétavy
Original Paper

Abstract

The present study attempts to establish the sperm ultrastructure baseline for Taenia hydatigena, which is essential for the future research on the location of specific proteins involved in spermatogenesis in this species. Thus, the ultrastructural organisation of the mature spermatozoon is described by means of transmission electron microscopy. Live tapeworms were obtained from an experimentally infected dog in the Department of Pathology and Public Health of the Agronomic and Veterinary Institute Hassan II of Rabat (Morocco). The spermatozoon of T. hydatigena is a filiform cell, which is tapered at both extremities and lacks mitochondria. It exhibits all the characteristics of type VII spermatozoon of tapeworms, namely a single axoneme, a crested body, spiralled cortical microtubules and nucleus, a periaxonemal sheath and intracytoplasmic walls. Other interesting characteristics are the presence of a 2000 nm long apical cone in its anterior extremity and only the axoneme in its posterior extremity. The ultrastructural characters of the spermatozoon of T. hydatigena are compared with those of other cestodes studied to date, with particular emphasis on representatives of the genus Taenia.

Keywords

Taenia hydatigena Taeniidae Cyclophyllidea Cestoda Spermatozoon Ultrastructure 

Notes

Acknowledgments

This study was financially supported by the European Commission Contract KBBE 2010 1.3-01 265862 (PARAVAC). The authors are grateful to Almudena García from the “Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB)” for her assistance in the preparation of samples. JM is a member of the AGAUR group (2014 SGR 1241).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Jordi Miquel
    • 1
    • 2
    Email author
  • Khalid Khallaayoune
    • 3
  • Samira Azzouz-Maache
    • 4
  • Anne-Françoise Pétavy
    • 4
  1. 1.Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de FarmàciaUniversitat de BarcelonaBarcelonaSpain
  2. 2.Institut de Recerca de la Biodiversitat, Facultat de BiologiaUniversitat de BarcelonaBarcelonaSpain
  3. 3.Département de Pathologie et de Santé Publique, Institut Agronomique et Vétérinaire Hassan IIRabat-InstitutsMorocco
  4. 4.Laboratoire de Parasitologie et Mycologie Médicale, Faculté de PharmacieUniversité Claude Bernard-Lyon 1Lyon Cedex 08France

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