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Spermiogenesis and spermatozoon ultrastructure of the digenean Neoapocreadium chabaudi (Apocreadiidae), a parasite of Balistes capriscus (Pisces, Teleostei).
Parasitol Int. 2010 Sep; 59(3):358-66.PI

Abstract

Spermiogenesis and the ultrastructural organization of the spermatozoon of the digenean Neoapocreadium chabaudi are described by means of transmission electron microscopy. Spermiogenesis follows the usual pattern found in the digeneans. It begins with the formation of a zone of differentiation bordered by cortical microtubules, characterized by the presence of an intercentriolar body composed of seven electron-dense plates situated between two striated rootlets and two centrioles. These centrioles give rise to two free flagella. Later, both flagella undergo a rotation of 90 degrees and fuse with the median cytoplasmic process. Spermiogenesis finishes when the ring of arched membranes constricts. The mature spermatozoon of N. chabaudi is characterized by the presence of 2 axonemes of different lengths presenting the 9+"1" trepaxonematan pattern, 2 bundles of parallel cortical microtubules, 2 mitochondria, a nucleus, and granules of glycogen. Nevertheless, several characters such as the morphology of sperm extremities and the presence of spinelike bodies allow us to distinguish N. chabaudi from other digenetic trematodes. The present paper provides the first ultrastructural results of a digenean belonging to the family Apocreadiidae that may be useful for the understanding of digenean relationships and phylogenetic studies.

Authors+Show Affiliations

Laboratoire de Biodiversité et Ecosystèmes Aquatiques, Département des Sciences de la Vie, Faculté des Sciences de Sfax, Sfax, Tunisia.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20460171

Citation

Kacem, H, et al. "Spermiogenesis and Spermatozoon Ultrastructure of the Digenean Neoapocreadium Chabaudi (Apocreadiidae), a Parasite of Balistes Capriscus (Pisces, Teleostei)." Parasitology International, vol. 59, no. 3, 2010, pp. 358-66.
Kacem H, Bakhoum AJ, Neifar L, et al. Spermiogenesis and spermatozoon ultrastructure of the digenean Neoapocreadium chabaudi (Apocreadiidae), a parasite of Balistes capriscus (Pisces, Teleostei). Parasitol Int. 2010;59(3):358-66.
Kacem, H., Bakhoum, A. J., Neifar, L., & Miquel, J. (2010). Spermiogenesis and spermatozoon ultrastructure of the digenean Neoapocreadium chabaudi (Apocreadiidae), a parasite of Balistes capriscus (Pisces, Teleostei). Parasitology International, 59(3), 358-66. https://doi.org/10.1016/j.parint.2010.04.008
Kacem H, et al. Spermiogenesis and Spermatozoon Ultrastructure of the Digenean Neoapocreadium Chabaudi (Apocreadiidae), a Parasite of Balistes Capriscus (Pisces, Teleostei). Parasitol Int. 2010;59(3):358-66. PubMed PMID: 20460171.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spermiogenesis and spermatozoon ultrastructure of the digenean Neoapocreadium chabaudi (Apocreadiidae), a parasite of Balistes capriscus (Pisces, Teleostei). AU - Kacem,H, AU - Bakhoum,A J S, AU - Neifar,L, AU - Miquel,J, Y1 - 2010/05/10/ PY - 2010/03/03/received PY - 2010/04/26/revised PY - 2010/04/28/accepted PY - 2010/5/13/entrez PY - 2010/5/13/pubmed PY - 2010/12/14/medline SP - 358 EP - 66 JF - Parasitology international JO - Parasitol. Int. VL - 59 IS - 3 N2 - Spermiogenesis and the ultrastructural organization of the spermatozoon of the digenean Neoapocreadium chabaudi are described by means of transmission electron microscopy. Spermiogenesis follows the usual pattern found in the digeneans. It begins with the formation of a zone of differentiation bordered by cortical microtubules, characterized by the presence of an intercentriolar body composed of seven electron-dense plates situated between two striated rootlets and two centrioles. These centrioles give rise to two free flagella. Later, both flagella undergo a rotation of 90 degrees and fuse with the median cytoplasmic process. Spermiogenesis finishes when the ring of arched membranes constricts. The mature spermatozoon of N. chabaudi is characterized by the presence of 2 axonemes of different lengths presenting the 9+"1" trepaxonematan pattern, 2 bundles of parallel cortical microtubules, 2 mitochondria, a nucleus, and granules of glycogen. Nevertheless, several characters such as the morphology of sperm extremities and the presence of spinelike bodies allow us to distinguish N. chabaudi from other digenetic trematodes. The present paper provides the first ultrastructural results of a digenean belonging to the family Apocreadiidae that may be useful for the understanding of digenean relationships and phylogenetic studies. SN - 1873-0329 UR - https://www.unboundmedicine.com/medline/citation/20460171/Spermiogenesis_and_spermatozoon_ultrastructure_of_the_digenean_Neoapocreadium_chabaudi__Apocreadiidae__a_parasite_of_Balistes_capriscus__Pisces_Teleostei__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1383-5769(10)00088-7 DB - PRIME DP - Unbound Medicine ER -