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Title: Collyricloides massanae (Digenea: Collyriclidae): spermatozoon ultrastructure and phylogenetic importance
Author: Bakhoum, Abdoulaye Jacque Sacodou
Quilichini, Yann
Miquel Colomé, Jordi
Feliu José, Carlos
Bâ, Cheikh Tidiane
Marchand, Bernard
Keywords: Espermatozoides
Malalties dels animals
Ultraestructura (Biologia)
Cèl·lules animals
Animal diseases
Ultrastructure (Biology)
Animal cells
Issue Date: 14-Nov-2014
Publisher: EDP Sciences
Abstract: The spermatological characteristics of Collyricloides massanae (Digenea: Collyriclidae), a parasite of Apodemus sylvaticus caught in France, were studied by means of transmission electron microscopy. The mature sperm of C. massanae presents two axonemes of different lengths with the 9 + ''1'' pattern of the Trepaxonemata, two bundles of parallel cortical microtubules, external ornamentation of the plasma membrane, spine-like bodies, one mitochondrion, a nucleus and granules of glycogen. An analysis of spermatological organisation emphasised some differences between the mature spermatozoon of C. massanae and those reported in the Gorgoderoidea species studied to date, specially belonging to the families Dicrocoeliidae, Paragonimidae and Troglotrematidae. The ultrastructural criteria described in C. massanae such as the morphology of both anterior and posterior spermatozoon extremities, the association ''external ornamentation + cortical microtubules'', the type 2 of external ornamentation and the spine-like bodies would allow us to bring closer the Collyriclidae to Microphalloidea. However, further ultrastructural and molecular studies are needed particularly in the unexplored taxa in order to fully resolve the phylogenetic position of the Collyriclidae.
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It is part of: Parasite, 2014, vol. 21, num. 59, p. 1-11
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ISSN: 1252-607X
Appears in Collections:Articles publicats en revistes (Institut de Recerca de la Biodiversitat (IRBio))
Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)

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