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Ultrastructure of the spermatozoon of Anomotaenia quelea (Mettrick,1961) (Cestoda, Cyclophyllidea, Dilepididae) in Senegal

The mature Anomotaenia quelea spermatozoon exhibits an apical cone of electron dense material and two helicoidal crest-like bodies. The apical cone near its base is surrounded by a lucent cytoplasm and a spiraled layer of cortical microtubules. The crest- like bodies are of different lengths, spiraled and make an angle of 30-40° to the hypothetical the spermatozoon axis. The axoneme is of the 9+1 trepaxonematan pattern and is surrounded by a periaxonemal sheath of electron dense material. The cytoplasm contains in regions III and IV numerouses electron-dense granules of glycogen situated between the periaxonemal sheath and the cortical microtubules. The posterior extremity of the spermatozoon of A. quelea exhibits a nucleus and a disorganized axoneme and cortical microtubules. This type of posterior extremity of the mature spermatozoon has never been described previously in the Dilepididae. Similarly, two crested-like bodies have not been previously described in a Dilepidid cestode.


Auteur(s) : Aïssatou Bâ, Papa Ibnou Ndiaye, Cheikh Tidiane Bâ, Jordi Miquel
Pages : 119-125
Année de publication : 2013
Revue : Zoologischer Anzeiger
N° de volume : 253
Type : Article
Statut Editorial : Revue scientifique
Mise en ligne par : BA Aïssatou