Spermatozoon ultrastructure of Aponurus laguncula (Digenea: Lecithasteridae), a parasite of Aluterus monoceros (Pisces: Teleostei). - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Parasitology International Année : 2010

Spermatozoon ultrastructure of Aponurus laguncula (Digenea: Lecithasteridae), a parasite of Aluterus monoceros (Pisces: Teleostei).

Jean-Lou Justine
Rodney A. Bray
  • Fonction : Auteur
Bernard Marchand

Résumé

The mature spermatozoon of Aponurus laguncula, a parasite of the unicorn leatherjacket Aluterus monoceros, was studied by transmission electron microscopy. The spermatozoon possesses 2 axonemes of the 9+"1" trepaxonematan pattern, attachment zones, a nucleus, a mitochondrion, external ornamentation of the plasma membrane and cortical microtubules. The major features are the presence of: 1) external ornamentation in the anterior part of the spermatozoon not associated with cortical microtubules; 2) one mitochondrion; and 3) cortical microtubules arranged as a single field in the ventral side. The maximum number of microtubules is in the nuclear region. The extremities of the axonemes are characterized by the disappearance of the central core and the presence of microtubule doublets or singlets. This study is the first undertaken with a member of the Lecithasteridae and exemplifies the sperm ultrastructure for the superfamily Hemiuroidea.

Domaines

Parasitologie

Dates et versions

hal-00595888 , version 1 (25-05-2011)

Identifiants

Citer

Yann Quilichini, Joséphine Foata, Jean-Lou Justine, Rodney A. Bray, Bernard Marchand. Spermatozoon ultrastructure of Aponurus laguncula (Digenea: Lecithasteridae), a parasite of Aluterus monoceros (Pisces: Teleostei).. Parasitology International, 2010, 59 (1), pp.22-8. ⟨10.1016/j.parint.2009.06.007⟩. ⟨hal-00595888⟩
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