Parasitology Research

, Volume 99, Issue 1, pp 37–44 | Cite as

Ultrastructure of the spermatozoon of Dollfusiella spinulifera (Beveridge and Jones, 2000) Beveridge, Neifar and Euzet, 2004 (Trypanorhyncha, Eutetrarhynchidae)

  • Jordi MiquelEmail author
  • Zdzisław Świderski
Original Paper


The ultrastructural organization of the mature spermatozoon of the trypanorhynch cestode Dollfusiella spinulifera is described. The spermatozoon is a long filiform cell, tapered at both ends, which lacks mitochondria. Its cytoplasm contains (1) two axonemes of different lengths of the 9+‘1’ pattern of trepaxonematan Platyhelminthes, (2) two rows of parallel cortical microtubules, each of which is adjacent to the opposite sides of the plasma membrane, (3) the nucleus, and (4) glycogen in the form of both α-glycogen rosettes and β-glycogen particles. Unlike the majority of cestode spermatozoa, the spematozoon of D. spinulifera lacks crested bodies and periaxonemal sheath. In view of the present results, the postulated synapomorphic value of crested bodies for the Eucestoda is questioned.


Sodium Cacodylate Buffer Mature Spermatozoon Cortical Microtubule Posterior Extremity Anterior Extremity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Authors wish to thank Dr. Malcolm K. Jones (Centre for Microscopy and Microanalysis, University of Queensland, Australia) for providing the embedded specimens of D. spinulifera and Dr. Ian Beveridge (Department of Veterinary Science, University of Melbourne, Australia) for confirming the identification of these specimens. We also wish to thank the “Serveis Cientificotècnics” (University of Barcelona, Spain) for their support in the preparation of samples. This study was supported by the “Departament d’Universitats, Recerca i Societat de la Informació, Generalitat de Catalunya” (Spain).


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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de FarmàciaUniversitat de BarcelonaBarcelonaSpain
  2. 2.W. Stefański Institute of ParasitologyPolish Academy of SciencesWarsawPoland
  3. 3.Department of General Biology and ParasitologyWarsaw Medical UniversityWarsawPoland

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