Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus

Spermiogenesis in Molluscotaenia crassiscolex begins with the formation of a differentiation zone containing two centrioles. One of the centrioles develops a flagellum directly into the cytoplasmic extension. The nucleus elongates and later migrates along the spermatid body. During advanced stages o...

Descripción completa

Detalles Bibliográficos
Autores: Marigo, Adji Mama, Bâ, Cheikh Tidiane, Miquel Colomé, Jordi
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2011
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/43327
Acceso en línea:https://hdl.handle.net/2445/43327
Access Level:acceso abierto
Palabra clave:Espermatogènesi
Espermatozoides
Ultraestructura (Biologia)
Cestodes
Spermatogenesis
Spermatozoa
Ultrastructure (Biology)
Tapeworms
id ES_87f4bf06cce89c3b686995e96d2e98e3
oai_identifier_str oai:diposit.ub.edu:2445/43327
network_acronym_str ES
network_name_str España
repository_id_str
spelling Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneusMarigo, Adji MamaBâ, Cheikh TidianeMiquel Colomé, JordiEspermatogènesiEspermatozoidesUltraestructura (Biologia)CestodesSpermatogenesisSpermatozoaUltrastructure (Biology)TapewormsSpermiogenesis in Molluscotaenia crassiscolex begins with the formation of a differentiation zone containing two centrioles. One of the centrioles develops a flagellum directly into the cytoplasmic extension. The nucleus elongates and later migrates along the spermatid body. During advanced stages of spermiogenesis, a periaxonemal sheath appears in the spermatid. Spermiogenesis finishes with the appearance of a single helicoidal crested body at the base of the spermatid and, finally, the narrowing of the ring of arched membranes causes the detachment of the fully formed spermatozoon. The mature spermatozoon of M. crassiscolex exhibits a partially detached crested body in the anterior region of the spermatozoon, one axoneme, twisted cortical microtubules, a periaxonemal sheath, and a spiralled nucleus. The anterior spermatozoon extremity is characterized by the presence of an electron-dense apical cone and a single spiralled crested body, which is attached to the sperm cell in the anterior and posterior areas of region I, whereas in the middle area it is partially detached from the cell. This crested body is described for the first time in cestodes. The posterior extremity of the male gamete exhibits only the disorganizing axoneme. Results are discussed and compared particularly with the available ultrastructural data on dilepidids sensu lato.Blackwell2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/43327Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: http://dx.doi.org/10.1111/j.1463-6395.2010.00464.xActa Zoologica, 2011, vol. 92, num. 2, p. 116-125http://dx.doi.org/10.1111/j.1463-6395.2010.00464.x(c) Marigo, Adji Mama et al., 2011info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/433272026-05-27T06:46:51Z
dc.title.none.fl_str_mv Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
title Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
spellingShingle Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
Marigo, Adji Mama
Espermatogènesi
Espermatozoides
Ultraestructura (Biologia)
Cestodes
Spermatogenesis
Spermatozoa
Ultrastructure (Biology)
Tapeworms
title_short Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
title_full Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
title_fullStr Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
title_full_unstemmed Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
title_sort Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
dc.creator.none.fl_str_mv Marigo, Adji Mama
Bâ, Cheikh Tidiane
Miquel Colomé, Jordi
author Marigo, Adji Mama
author_facet Marigo, Adji Mama
Bâ, Cheikh Tidiane
Miquel Colomé, Jordi
author_role author
author2 Bâ, Cheikh Tidiane
Miquel Colomé, Jordi
author2_role author
author
dc.subject.none.fl_str_mv Espermatogènesi
Espermatozoides
Ultraestructura (Biologia)
Cestodes
Spermatogenesis
Spermatozoa
Ultrastructure (Biology)
Tapeworms
topic Espermatogènesi
Espermatozoides
Ultraestructura (Biologia)
Cestodes
Spermatogenesis
Spermatozoa
Ultrastructure (Biology)
Tapeworms
description Spermiogenesis in Molluscotaenia crassiscolex begins with the formation of a differentiation zone containing two centrioles. One of the centrioles develops a flagellum directly into the cytoplasmic extension. The nucleus elongates and later migrates along the spermatid body. During advanced stages of spermiogenesis, a periaxonemal sheath appears in the spermatid. Spermiogenesis finishes with the appearance of a single helicoidal crested body at the base of the spermatid and, finally, the narrowing of the ring of arched membranes causes the detachment of the fully formed spermatozoon. The mature spermatozoon of M. crassiscolex exhibits a partially detached crested body in the anterior region of the spermatozoon, one axoneme, twisted cortical microtubules, a periaxonemal sheath, and a spiralled nucleus. The anterior spermatozoon extremity is characterized by the presence of an electron-dense apical cone and a single spiralled crested body, which is attached to the sperm cell in the anterior and posterior areas of region I, whereas in the middle area it is partially detached from the cell. This crested body is described for the first time in cestodes. The posterior extremity of the male gamete exhibits only the disorganizing axoneme. Results are discussed and compared particularly with the available ultrastructural data on dilepidids sensu lato.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/43327
url https://hdl.handle.net/2445/43327
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1111/j.1463-6395.2010.00464.x
Acta Zoologica, 2011, vol. 92, num. 2, p. 116-125
http://dx.doi.org/10.1111/j.1463-6395.2010.00464.x
dc.rights.none.fl_str_mv (c) Marigo, Adji Mama et al., 2011
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Marigo, Adji Mama et al., 2011
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Blackwell
publisher.none.fl_str_mv Blackwell
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869412514906767360
score 15.300719

Similares en LA Referencia