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Spermatological characteristics of Sclerodistomoides pacificus (Digenea, Sclerodistomoididae) a parasite of the flying fish Cheilopogon pinnatibarbatus (Teleostei, Exocoetidae). Tissue Cell 2020; 62:101314. [DOI: 10.1016/j.tice.2019.101314] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 11/05/2019] [Accepted: 11/05/2019] [Indexed: 11/19/2022]
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2
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Kacem H, Giese EG, Miquel J. Sperm characters in the Hemiuridae (Digenea): first data on Aphanurus stossichii (Aphanurinae) and Ectenurus lepidus (Dinurinae). Parasitol Res 2020; 119:991-999. [PMID: 31989239 DOI: 10.1007/s00436-020-06609-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/15/2020] [Indexed: 11/25/2022]
Abstract
The present work provides the first ultrastructural analysis of spermatozoa of two digeneans (Aphanurus stossichii (Monticelli, 1891) and Ectenurus lepidus Looss, 1907) belonging to the unexplored subfamilies of the Hemiuridae, namely, the Aphanurinae and the Dinurinae. In March 2019, these hemiurids were collected respectively from the digestive tract of the bogue Boops boops (Teleostei, Sparidae) and the Atlantic horse mackerel Trachurus trachurus (Teleostei, Carangidae) captured in the coastal zone of the Mediterranean Sea, off La Chebba (Tunisia). The ultrastructural study reveals that both spermatozoa exhibit the Bakhoum et al.'s type II of the digenean sperm cells characterized by the presence of two 9+'1' axonemes, an external ornamentation of the plasma membrane not associated with cortical microtubules and located in the anterior part of the spermatozoon, a single bundle of cortical microtubules, the maximum number of cortical microtubules located in a middle part of the sperm cell, and one mitochondrion. Moreover, they share several ultrastructural features with the studied spermatozoa of Hemiuridae such as the presence of two axonemes with the 9+'1' trepaxonematan pattern, a reduced number of parallel cortical microtubules organized into one field with their maximum number located in the median (A. stossichii) or posterior (E. lepidus) part of the spermatozoon, an external ornamentation of the plasma membrane in the anterior part of the spermatozoon, one mitochondrion, a nucleus, and a small amount of glycogen granules. However, the two studied hemiurids could be distinguished by the morphology of the anterior and posterior spermatozoon extremities and the presence of mitochondrial matrix granules in A. stossichii.
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Affiliation(s)
- Hichem Kacem
- Laboratoire de Biodiversité Marine et Environnement, Département des Sciences de la Vie, Faculté des Sciences de Sfax, Université de Sfax, BP 1171, 3000, Sfax, Tunisia.
| | - Elane G Giese
- Laboratório de Histologia e Embriologia Animal, Instituto da Saúde e Produção Animal, Universidade Federal Rural da Amazônia, Av. Presidente Tancredo Neves, No. 2501 Bairro 66, Belém, 077-830, Brazil.,Secció de Parasitologia, Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII, sn, 08028, Barcelona, Spain
| | - Jordi Miquel
- Secció de Parasitologia, Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII, sn, 08028, Barcelona, Spain.,Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Av. Diagonal, 645, 08028, Barcelona, Spain
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Kacem H, Miquel J. Sperm characters of the bucephalid digenean Prosorhynchoides arcuatus and their phylogenetic significance. ZOOL ANZ 2018. [DOI: 10.1016/j.jcz.2018.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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4
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Sperm characters of the digenean Prosorhynchus aculeatus Odhner, 1905 (Bucephalidae), a parasite of the marine fish Conger conger (Linnaeus, 1758) (Congridae). ZOOMORPHOLOGY 2017. [DOI: 10.1007/s00435-017-0359-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bakhoum AJS, Miquel J, Ndiaye PI, Justine JL, Falchi A, Bâ CT, Marchand B, Quilichini Y. Advances in Spermatological Characters in the Digenea: Review and Proposal of Spermatozoa Models and Their Phylogenetic Importance. ADVANCES IN PARASITOLOGY 2017; 98:111-165. [PMID: 28942768 DOI: 10.1016/bs.apar.2017.04.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The wide biodiversity and economic importance of digeneans have motivated a great deal of research in the last decade, focussing on their phylogenetic positions. Molecular research was instrumental for our understanding of phylogeny in the Digenea, but spermatological studies have also provided many results, which are potentially useful for phylogeny; however, the complete spermatological data set has never been reviewed in a whole phylogenetic perspective. Spermatological data are now available for more than 100 species, belonging to 15 superfamilies and 46 families. In this paper, we try to summarize the current knowledge about sperm structure in the digeneans and propose a classification of digenean spermatozoa into five basic models. The main ultrastructural characters used are (1) the type of axoneme, (2) the lateral expansion, (3) the association 'external ornamentation of the plasma membrane + cortical microtubules', (4) the field of cortical microtubules and its number, (5) the location of the external ornamentation, (6) the location of the maximum number of cortical microtubules and (7) the number of mitochondria. We also outline the most interesting features for phylogenetic inference and their possible value in the context of digenean systematics, phylogeny and evolution. Associations between sperm models and superfamilies were found as follows: Type 1 in the Schistosomatoidea; Type 2 in the Hemiuroidea; Type 3 in the Opecoeloidea, Lepocreadioidea, Haploporoidea and Opisthorchioidea; Type 4 in the Gorgoderoidea, Microphalloidea, Plagiorchioidea and Gymnophalloidea; Type 5 in the Echinostomatoidea, Microscaphidioidea, Paramphistomoidea, Pronocephaloidea and Brachylaimoidea.
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Affiliation(s)
- Abdoulaye J S Bakhoum
- CNRS - Università di Corsica, UMR 6134 - SPE, Corte, France; Cheikh Anta Diop University of Dakar, Dakar, Senegal
| | - Jordi Miquel
- Universitat de Barcelona, Barcelona, Spain; IRBio, Barcelona, Spain
| | - Papa I Ndiaye
- Cheikh Anta Diop University of Dakar, Dakar, Senegal
| | - Jean-Lou Justine
- Institut de Systématique, Évolution, Biodiversité, ISYEB, UMR7205 CNRS, EPHE, MNHN, UPMC, Muséum National d'Histoire Naturelle, Sorbonne Universités, Paris, France
| | | | - Cheikh T Bâ
- Cheikh Anta Diop University of Dakar, Dakar, Senegal
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Bakhoum AJ, Kacem H, Neifar L, Miquel J. The Opecoelidae sperm model and its contribution to phylogeny: Spermatozoon ultrastructural particularities of Allopodocotyle pedicellata (Plagioporinae, Digenea, Platyhelminthes). ZOOL ANZ 2017. [DOI: 10.1016/j.jcz.2016.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Ndiaye PI, Quilichini Y, Marigo AM, Bâ CT, Tkach VV, Marchand B. Ultrastructural characteristics of the mature spermatozoon of the digenean Sclerodistomum italicum (Stossich, 1893) (Hemiuroidea, Sclerodistomidae) intestinal parasite of Hypocanthus amia (Teleostei, Carangidae). Tissue Cell 2016; 49:15-21. [PMID: 28087142 DOI: 10.1016/j.tice.2016.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 12/18/2016] [Accepted: 12/18/2016] [Indexed: 10/20/2022]
Abstract
The mature spermatozoon of Sclerodistomum italicum is filiform, tapered at both ends and shows the following features: 2 axonemes of the 9+"1" pattern of the Trepaxonemata, mitochondrion, nucleus and parallel cortical microtubules. The specific features of the spermatozoon of S. italicum include the simultaneous presence of two types of extramembranous ornamentations, the presence of short cortical microtubules in the anterior part of the spermatozoon and the presence of only one bundle of cortical microtubules in the median part of the spermatozoon. Thus far these structures are known only in the Hemiuroidea. The presence of filamentous ornamentation in the anterior extremity of the spermatozoon has not previously been described in the Sclerodistomidae. Similar to spermatozoa of other hemiuroideans, S. italicum lack spine-like bodies described in spermatozoa of many digenean taxa. The posterior extremity of the spermatozoon exhibits the same ultrastructural characteristics typical of the Hemiuroidea.
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Affiliation(s)
- Papa Ibnou Ndiaye
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal.
| | - Yann Quilichini
- UMR SPE 6134, CNRS - Università di Corsica, SERME Service d'Etude et de Recherche en Microscopie Electronique, Campus Grimaldi, 20250 Corte, Corsica, France
| | - Adji Mama Marigo
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal
| | - Cheikh Tidiane Bâ
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal
| | - Vasyl V Tkach
- Department of Biology, University of North Dakota, Grand Forks, ND, USA
| | - Bernard Marchand
- UMR SPE 6134, CNRS - Università di Corsica, SERME Service d'Etude et de Recherche en Microscopie Electronique, Campus Grimaldi, 20250 Corte, Corsica, France
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Diagne PM, Bâ CT, Ndiaye PI, Bray RA, Marchand B, Quilichini Y. Sperm ultrastructure of Podocotyloides magnatestis (Digenea, Opecoeloidea, Opecoelidae) a parasite of Parapristipoma octolineatum (Pisces, Teleostei). ZOOL ANZ 2016. [DOI: 10.1016/j.jcz.2016.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ultrastructural study of the spermatozoon of Hemiurus appendiculatus (Digenea, Hemiuroidea, Hemiuridae), a parasite of Boops boops (Pisces, Teleostei, Sparidae) off Senegal. Tissue Cell 2016; 48:96-103. [PMID: 26881736 DOI: 10.1016/j.tice.2016.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/22/2016] [Accepted: 01/23/2016] [Indexed: 11/21/2022]
Abstract
The mature spermatozoon of Hemiurus appendiculatus exhibits the general pattern described in most of the digenean namely, two axonemes of the 9 + "1" pattern of the Trepaxonemata, a nucleus, a filiform mitochondrion, external ornamentations of the plasma membrane and parallel cortical microtubules located on one side of the spermatozoon. In this study, we show for the second time in a digenean spermatozoon the presence of microtubules of the second axoneme associated each in a short length with an external ornamentation, seven cortical microtubules, a terminal bulge in the anterior spermatozoon extremity separate from the remainder of the spermatozoon by a transverse constriction and the simultaneous presence of the external ornamentation of the plasma membrane with a filamentous ornamentation. The external ornamentations have a differentiated distribution, cover almost the anterior region of the spermatozoon, are more abundant around the first axoneme and extend backwards over a short distance around the second axoneme. This study also allowed us to reveal for the first time the existence in the Hemiuroidea of an axoneme that begins to disrupt before reaching the front end of the mitochondrion.
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Bakhoum AJS, Quilichini Y, Justine JL, Bray RA, Miquel J, Feliu C, Bâ CT, Marchand B. First spermatological study in the Atractotrematidae (Digenea, Haploporoidea): the case of Atractotrema sigani, intestinal parasite of Siganus lineatus. ACTA ACUST UNITED AC 2015; 22:26. [PMID: 26475645 PMCID: PMC4609001 DOI: 10.1051/parasite/2015026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 09/25/2015] [Indexed: 11/14/2022]
Abstract
The ultrastructural organization of the mature spermatozoon of the digenean Atractotrema sigani (from Siganus lineatus off New Caledonia) was investigated by transmission electron microscopy. The male gamete of A. sigani exhibits the general morphology described in digeneans with the presence of two axonemes of different lengths showing the 9 + “1” pattern of the Trepaxonemata, a nucleus, two mitochondria, two bundles of parallel cortical microtubules, external ornamentation, spine-like bodies and granules of glycogen. However, the mature spermatozoon of A. sigani has some specific characters such as the morphology of its anterior region and the submembranous electron-dense material. Although similar structures have been reported in some digenean species, the presence of a submembranous electron-dense material describing a complete ring is reported here for the first time in the mature spermatozoon of A. sigani. In addition, sperm characteristics are compared between the Haploporoidea and their supposed close superfamilies, and possible phylogenetic implications of these findings for the Digenea are discussed.
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Affiliation(s)
- Abdoulaye J S Bakhoum
- CNRS-Università di Corsica, UMR 6134-SPE, SERME Service d'Étude et de Recherche en Microscopie Électronique, Corte 20250, Corsica, France - Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal
| | - Yann Quilichini
- CNRS-Università di Corsica, UMR 6134-SPE, SERME Service d'Étude et de Recherche en Microscopie Électronique, Corte 20250, Corsica, France
| | - Jean-Lou Justine
- ISYEB, Institut de Systématique, Évolution, Biodiversité (UMR7205 CNRS, EPHE, MNHN, UPMC), Muséum National d'Histoire Naturelle, Sorbonne Universités, CP 51, 55 rue Buffon 75231, Paris cedex 05, France
| | - Rodney A Bray
- Department of Life Sciences, Natural History Museum, Cromwell Road, SW7 5BD London, UK
| | - Jordi Miquel
- Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain - Institut de Recerca de la Biodiversitat, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Carlos Feliu
- Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain - Institut de Recerca de la Biodiversitat, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Cheikh T Bâ
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal
| | - Bernard Marchand
- CNRS-Università di Corsica, UMR 6134-SPE, SERME Service d'Étude et de Recherche en Microscopie Électronique, Corte 20250, Corsica, France
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Diagne P, Quilichini Y, Bâ C, Ndiaye P, Dione A, Marchand B. Ultrastructure of the spermatozoon of Helicometroides atlanticus (Digenea, Monorchiidae), an intestinal parasite of Parapristipoma octolineatum (Pisces, Teleostei) in Senegal. Tissue Cell 2015; 47:198-204. [DOI: 10.1016/j.tice.2014.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 12/17/2014] [Accepted: 12/19/2014] [Indexed: 10/24/2022]
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12
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Bakhoum AJ, Quilichini Y, Miquel J, Feliu C, Bâ CT, Marchand B. Ultrastructure of the male gamete of Brachylecithum eliomydis (Digenea, Dicrocoeliidae)—A parasite of Eliomys quercinus (Rodentia, Gliridae). ZOOL ANZ 2015. [DOI: 10.1016/j.jcz.2015.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bakhoum AJS, Quilichini Y, Justine JL, Bray RA, Bâ CT, Marchand B. Neomultitestis aspidogastriformis Bray and Cribb, 2003 (Digenea, Lepocreadiidae): mature spermatozoon and sperm morphologies in the Lepocreadioidea. Cell Biol Int 2015; 39:799-807. [PMID: 25644308 DOI: 10.1002/cbin.10449] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 01/15/2015] [Indexed: 11/11/2022]
Abstract
Spermatological characteristics are described for the first time in the genus Neomultitestis Machida, 1982, belonging to the family Lepocreadiidae Odhner, 1905. Adult Neomultitestis aspidogastriformis were collected from the digestive tract of Platax teira, caught off New Caledonia. The mature spermatozoon of N. aspidogastriformis is described by transmission electron microscopy (TEM). It includes two axonemes with 9 + "1" pattern of Trepaxonemata, an antero-lateral electron-dense material, attachment zones, two mitochondria, a nucleus, two bundles of parallel cortical microtubules, external ornamentation of the plasma membrane, spine-like bodies, and granules of glycogen. Certain ultrastructural characteristics of the spermatozoon, especially the antero-lateral electron-dense material, are shared by N. aspidogastriformis and all species of the superfamily Lepocreadioidea studied so far. The antero-lateral electron-dense material, present in different families of lepocreadioids, supports the monophyletic status of the superfamily. We also list several ultrastructural characteristics which characterize the mature spermatozoon of the Lepocreadioidea.
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Affiliation(s)
- Abdoulaye J S Bakhoum
- CNRS-University of Corsica, UMR 6134-SPE, SERME Service d'Étude et de Recherche en Microscopie Électronique, Corte, 20250, Corsica, France.,Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Cheikh Anta Diop University of Dakar, BP, 5055, Dakar, Senegal
| | - Yann Quilichini
- CNRS-University of Corsica, UMR 6134-SPE, SERME Service d'Étude et de Recherche en Microscopie Électronique, Corte, 20250, Corsica, France
| | - Jean-Lou Justine
- ISYEB, Institut de Systématique, Évolution, Biodiversité (UMR7205 CNRS, EPHE, MNHN, UPMC), Muséum National d'Histoire Naturelle, CP 51, 55 rue Buffon, 75231, Paris cedex 05, France
| | - Rodney A Bray
- Department of Life Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, UK
| | - Cheikh T Bâ
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Cheikh Anta Diop University of Dakar, BP, 5055, Dakar, Senegal
| | - Bernard Marchand
- CNRS-University of Corsica, UMR 6134-SPE, SERME Service d'Étude et de Recherche en Microscopie Électronique, Corte, 20250, Corsica, France
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Bakhoum AJ, Quilichini Y, Miquel J, Feliu C, Bâ CT, Marchand B. Collyricloides massanae (Digenea, Collyriclidae): spermatozoon ultrastructure and phylogenetic importance. ACTA ACUST UNITED AC 2014; 21:59. [PMID: 25394323 PMCID: PMC4230190 DOI: 10.1051/parasite/2014061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 10/31/2014] [Indexed: 12/05/2022]
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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Affiliation(s)
- Abdoulaye Jacque Bakhoum
- CNRS - University of Corsica, UMR SPE 6134, SERME "Service d'Étude et de Recherche en Microscopie Électronique", 20250 Corte, France - Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal
| | - Yann Quilichini
- CNRS - University of Corsica, UMR SPE 6134, SERME "Service d'Étude et de Recherche en Microscopie Électronique", 20250 Corte, France
| | - Jordi Miquel
- Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain - Institut de Recerca de la Biodiversitat, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Carlos Feliu
- Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain - Institut de Recerca de la Biodiversitat, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Cheikh Tidiane Bâ
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal
| | - Bernard Marchand
- CNRS - University of Corsica, UMR SPE 6134, SERME "Service d'Étude et de Recherche en Microscopie Électronique", 20250 Corte, France
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Ndiaye PI, Quilichini Y, Sène A, Tkach VV, Bâ CT, Marchand B. Ultrastructural characters of the spermatozoa in Digeneans of the genus Lecithochirium Lühe, 1901 (Digenea, Hemiuridae), parasites of fishes: comparative study of L. microstomum and L. musculus. ACTA ACUST UNITED AC 2014; 21:49. [PMID: 25275216 PMCID: PMC4178227 DOI: 10.1051/parasite/2014050] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 09/17/2014] [Indexed: 11/15/2022]
Abstract
This study provides the first ultrastructural data of spermatozoa in the genus Lecithochirium. The spermatozoa of L. microstomum (from Trichiurus lepturus in Senegal) and L. musculus (from Anguilla anguilla in Corsica) exhibit the general pattern described in the great majority of the Digenea, namely two axonemes with the 9 + "1" pattern typical of the Trepaxonemata, one mitochondrion, a nucleus, parallel cortical microtubules and external ornamentation of the plasma membrane. Spermatozoa of L. microstomum and L. musculus have some specific features such as the presence of a reduced number of cortical microtubules arranged on only one side of the spermatozoon, the lack of spine-like bodies and expansion of the plasma membrane. The external ornamentation of the plasma membrane entirely covers the anterior extremity of the spermatozoa. The ultrastructure of the posterior extremity of the spermatozoa corresponds to the pattern previously described in the Hemiuridae, characterized by only singlets of the second axoneme. A particularity of these spermatozoa is the organization of the microtubule doublets of the second axoneme around the nucleus in the posterior part of the spermatozoon.
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Affiliation(s)
- Papa Ibnou Ndiaye
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar Senegal
| | - Yann Quilichini
- CNRS - University of Corsica, UMR 6134, "Service d'Étude et de Recherche en Microscopie Électronique", 20250 Corte, Corsica, France
| | - Aminata Sène
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar Senegal
| | - Vasyl V Tkach
- Department of Biology, University of North Dakota, 10 Cornell street, Grand Forks, ND 58202, USA
| | - Cheikh Tidiane Bâ
- Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar Senegal
| | - Bernard Marchand
- CNRS - University of Corsica, UMR 6134, "Service d'Étude et de Recherche en Microscopie Électronique", 20250 Corte, Corsica, France
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Ultrastructure of spermatozoa in the seminal receptacle of the liver fluke Opisthorchis felineus (Rivolta, 1884). Parasitol Res 2014; 113:1093-101. [DOI: 10.1007/s00436-013-3746-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 12/26/2013] [Indexed: 11/26/2022]
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Miquel J, Vilavella D, Swiderski Z, Shimalov VV, Torres J. Spermatological characteristics of Pleurogenidae (Digenea) inferred from the ultrastructural study of Pleurogenes claviger, Pleurogenoides medians and Prosotocus confusus. ACTA ACUST UNITED AC 2013; 20:28. [PMID: 23985167 PMCID: PMC3756337 DOI: 10.1051/parasite/2013028] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 08/16/2013] [Indexed: 11/24/2022]
Abstract
The present work constitutes the first ultrastructural analysis of the spermatozoon in the Pleurogenidae, with the study of three species belonging to three of the 16 genera included in this family, namely Pleurogenes claviger, Pleurogenoides medians and Prosotocus confusus. The mature spermatozoa of these pleurogenids present two axonemes of the 9+“1” trepaxonematan pattern, a nucleus, two mitochondria, two bundles of parallel cortical microtubules, external ornamentation, spine-like bodies and granules of glycogen. The organization of these characters in the sperm cell is similar in the three species. Thus, the anterior spermatozoon extremity is filiform and a continuous and submembranous layer of parallel cortical microtubules surrounds the axonemes at their anterior end. The posterior spermatozoon extremity exhibits the second axoneme and corresponds to the Cryptogonimidean type of Quilichini et al. (2010). Slight differences were noted between the spermatozoon of P. confusus and those of the two remaining species in the location of mitochondria.
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Affiliation(s)
- Jordi Miquel
- Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain - Institut de Recerca de la Biodiversitat, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain
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Ultrastructure of the spermatozoon of Parahemiurus merus () (Digenea: Hemiuroidea: Hemiuridae), a parasite of Sardinella aurita and S. maderensis () (Teleostei: Clupeidae) in the Senegalese coast. ZOOL ANZ 2013. [DOI: 10.1016/j.jcz.2012.11.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ndiaye PI, Quilichini Y, Sène A, Bray RA, Bâ CT, Marchand B. Prosorchis palinurichthi (Digenea, Sclerodistomidae): Ultrastructure of the mature spermatozoon. ZOOL ANZ 2013. [DOI: 10.1016/j.jcz.2012.11.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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