Ultrastructural study of the spermatozoon of Heterolebes maculosus (Digenea,Opistholebetidae), a parasite of the porcupinefish Diodon hystrix (Pisces,Teleostei) |
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| Authors: | Y Quilichini J Foata JL Justine RA Bray B Marchand |
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| Institution: | 1. CNRS UMR 6134, University of Corsica, “Parasites and Mediterranean Ecosystems” Laboratory, BP 52, 20250 Corte, France;2. UMR 7138 Systématique, Adaptation, Évolution, Muséum National d''Histoire Naturelle, Case postale 52, 57, rue Cuvier, 75231 Paris cedex 05, France;3. Aquarium des Lagons, B.P. 8185, 98807 Nouméa, Nouvelle-Calédonie, France;4. Department of Zoology, Natural History Museum, Cromwell Road, London SW7 5BD, UK;1. W. Stefański Institute of Parasitology, Polish Academy of Sciences, 00-818 Warsaw, Poland;2. Department of General Biology and Parasitology, Medical University of Warsaw, 5 Cha?ubińskiego Street, Warsaw, Poland;3. I.D. Papanin Institute for the Biology of Inland Waters, Russian Academy of Sciences, 152742 Borok, Yaroslavl Province, Russia;4. Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, sn, E08028 Barcelona, Spain;5. Institut de Recerca de la Biodiversitat, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 645, E08028 Barcelona, Spain;6. Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK;1. Laboratoire Hubert Curien, UMR CNRS 5516, University of Lyon, Saint-Etienne 42000, France;2. TTTech Automotive GmbH, Vienna A-1040, Austria;3. LIRMM, UMR CNRS 5506, University of Montpellier, Montpellier 34095, France;4. Lab-STICC, UMR CNRS 6285, University of South Britanny, Lorient 56321, France;1. Instituto de Química-Física Rocasolano, Consejo Superior de Investigaciones Científcas, Serrano 119, 28006 Madrid, Spain;2. Nanophotonics Technology Center, Universidad Politécnica de Valencia, 46022 Valencia, Spain;1. Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, v.v.i., ?eské Budějovice, Czech Republic;2. Faculty of Agriculture, University of South Bohemia in ?eské Budějovice, Czech Republic;3. Faculty of Economics, University of South Bohemia in ?eské Budějovice, Czech Republic;4. Veterinary and Microbiological Sciences Department, North Dakota State University, Fargo, USA;1. Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal;2. Department of Life Sciences, Natural History Museum, London, SW7 5BD, UK;3. UMR SPE 6134, CNRS – Università di Corsica, SERME Service d’Étude et de Recherche en Microscopie Électronique, 20250 Corte, France |
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| Abstract: | This paper describes the ultrastructure of the mature spermatozoon of Heterolebes maculosus. It is the first study of this kind concerning the Opistholebetidae (Platyhelminthes, Digenea). The ultrastructural elements observed in the spermatozoon are: two axonemes with 9+“1” pattern of Trepaxonemata and their attachment zones, two mitochondria, a nucleus, cortical microtubules, external ornamentation of the plasma membrane and spine-like bodies. The number and the disposition of cortical microtubules, the organisation of 11 cortical microtubules disposed in semi-circle around the first mitochondrion in the external ornamentation region and the organisation of the posterior part of the spermatozoon are discussed. Three principal types of posterior part of digenean spermatozoa are proposed. The similarity between the spermatozoon of the Opistholebetidae H. maculosus and Opecoelidae enables us to confirm that these two families are closely related. |
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