Ultrastructural analysis of the spermatozoa of three antarctic fish species
Male gametes of two icefishes, Chionodraco hamatus and Champsocephalus gunnari, family Channichthyidae were studied (with transmission and scanning electron microscopy), and a preliminary study was undertaken with scanning electron microscopy on Notothenia coriiceps, family Nototheniidae. Both famil...
Main Authors: | , , , , , , , |
---|---|
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
1999
|
Subjects: | |
Online Access: | http://hdl.handle.net/11365/7383 |
id |
ftunivsiena:oai:usiena-air.unisi.it:11365/7383 |
---|---|
record_format |
openpolar |
spelling |
ftunivsiena:oai:usiena-air.unisi.it:11365/7383 2024-04-21T07:50:14+00:00 Ultrastructural analysis of the spermatozoa of three antarctic fish species FALUGI, C. BACCETTI, B. RENIERI, T. MORETTI, E. CAMPANELLA, C. ANGELINI, C. PISANO, E. PIOMBONI, P. Falugi, C. Baccetti, B. Renieri, T. Moretti, E. Campanella, C. Angelini, C. Pisano, E. Piomboni, P. 1999 STAMPA http://hdl.handle.net/11365/7383 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000083119200004 volume:31 issue:2 firstpage:197 lastpage:202 numberofpages:6 journal:JOURNAL OF SUBMICROSCOPIC CYTOLOGY AND PATHOLOGY http://hdl.handle.net/11365/7383 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0043283365 Antarctic Sperm Ultrastructure info:eu-repo/semantics/article 1999 ftunivsiena 2024-03-28T00:42:44Z Male gametes of two icefishes, Chionodraco hamatus and Champsocephalus gunnari, family Channichthyidae were studied (with transmission and scanning electron microscopy), and a preliminary study was undertaken with scanning electron microscopy on Notothenia coriiceps, family Nototheniidae. Both families belong to the suborder Notorthenioidei, the perciform fish group endemic to Antarctic waters. At scanning electron microscopy level, all the three species show a rather similar morphology, common to most perciform species. At transmission electron microscopy, C. hamatus shows some differences: two nuclear fossae, and abundant membranous ornamentations of the head. While most Perciformes show anacrosomal spermatozoa, the portions of membrane of C. hamatus spermatozoa resemble acrosomoid vesicles, indicating a possible role in fertilization. In both C. gunnari and C. hamatus, the head membranes are bound, with different distribution, by PSA (Pisum sativum agglutinin), that generally presents affinity sites in acrosome membranes of mammalian spermatozoa. Article in Journal/Newspaper Antarc* Antarctic Università degli Studi di Siena: USiena air |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
Antarctic Sperm Ultrastructure |
spellingShingle |
Antarctic Sperm Ultrastructure FALUGI, C. BACCETTI, B. RENIERI, T. MORETTI, E. CAMPANELLA, C. ANGELINI, C. PISANO, E. PIOMBONI, P. Ultrastructural analysis of the spermatozoa of three antarctic fish species |
topic_facet |
Antarctic Sperm Ultrastructure |
description |
Male gametes of two icefishes, Chionodraco hamatus and Champsocephalus gunnari, family Channichthyidae were studied (with transmission and scanning electron microscopy), and a preliminary study was undertaken with scanning electron microscopy on Notothenia coriiceps, family Nototheniidae. Both families belong to the suborder Notorthenioidei, the perciform fish group endemic to Antarctic waters. At scanning electron microscopy level, all the three species show a rather similar morphology, common to most perciform species. At transmission electron microscopy, C. hamatus shows some differences: two nuclear fossae, and abundant membranous ornamentations of the head. While most Perciformes show anacrosomal spermatozoa, the portions of membrane of C. hamatus spermatozoa resemble acrosomoid vesicles, indicating a possible role in fertilization. In both C. gunnari and C. hamatus, the head membranes are bound, with different distribution, by PSA (Pisum sativum agglutinin), that generally presents affinity sites in acrosome membranes of mammalian spermatozoa. |
author2 |
Falugi, C. Baccetti, B. Renieri, T. Moretti, E. Campanella, C. Angelini, C. Pisano, E. Piomboni, P. |
format |
Article in Journal/Newspaper |
author |
FALUGI, C. BACCETTI, B. RENIERI, T. MORETTI, E. CAMPANELLA, C. ANGELINI, C. PISANO, E. PIOMBONI, P. |
author_facet |
FALUGI, C. BACCETTI, B. RENIERI, T. MORETTI, E. CAMPANELLA, C. ANGELINI, C. PISANO, E. PIOMBONI, P. |
author_sort |
FALUGI, C. |
title |
Ultrastructural analysis of the spermatozoa of three antarctic fish species |
title_short |
Ultrastructural analysis of the spermatozoa of three antarctic fish species |
title_full |
Ultrastructural analysis of the spermatozoa of three antarctic fish species |
title_fullStr |
Ultrastructural analysis of the spermatozoa of three antarctic fish species |
title_full_unstemmed |
Ultrastructural analysis of the spermatozoa of three antarctic fish species |
title_sort |
ultrastructural analysis of the spermatozoa of three antarctic fish species |
publishDate |
1999 |
url |
http://hdl.handle.net/11365/7383 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000083119200004 volume:31 issue:2 firstpage:197 lastpage:202 numberofpages:6 journal:JOURNAL OF SUBMICROSCOPIC CYTOLOGY AND PATHOLOGY http://hdl.handle.net/11365/7383 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0043283365 |
_version_ |
1796934037559836672 |