Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy
Background information . Available data concerning the sperm morphology of teleost fishes demonstrate wide variation. In the present study, the spermatozoa of Siberian sturgeon ( Acipenser baerii Brandt, 1869), a chondrostean fish, was investigated. In contrast with teleost fish, chondrostean sperma...
Published in: | Biology of the Cell |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2007
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1042/bc20060060 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1042%2FBC20060060 https://onlinelibrary.wiley.com/doi/pdf/10.1042/BC20060060 |
id |
crwiley:10.1042/bc20060060 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1042/bc20060060 2024-06-23T07:44:53+00:00 Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy Psenicka, Martin Alavi, S.M. Hadi Rodina, Marek Gela, David Nebesarova, Jana Linhart, Otomar 2007 http://dx.doi.org/10.1042/bc20060060 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1042%2FBC20060060 https://onlinelibrary.wiley.com/doi/pdf/10.1042/BC20060060 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Biology of the Cell volume 99, issue 2, page 103-115 ISSN 0248-4900 1768-322X journal-article 2007 crwiley https://doi.org/10.1042/bc20060060 2024-05-31T08:12:38Z Background information . Available data concerning the sperm morphology of teleost fishes demonstrate wide variation. In the present study, the spermatozoa of Siberian sturgeon ( Acipenser baerii Brandt, 1869), a chondrostean fish, was investigated. In contrast with teleost fish, chondrostean spermatozoa have a head with a distinct acrosome, whereas other structures, such as a midpiece and a single flagellum, are present in spermatozoa of most species. Results . The average length of the head including the acrosome and the midpiece was 7.01±0.83 μm. Ten posterolateral projections derived from the acrosome were present on a subacrosomal region, with mean lengths of 0.94±0.15 μm and widths of 0.93±0.11 μm. The nucleus consisted of electrodense homogeneous nuclear chromatin. Three intertwining endonuclear canals, bound by membranes, traversed the nucleus longitudinally from the acrosomal end to the basal nuclear fossa region. There were between three and six mitochondria, two types of centrioles (proximal and distal) in the midpiece and two vacuoles composed of lipid droplets. The flagellum (44.75±4.93 μm in length), originating from the centriolar apparatus, had a typical 9+2 eukaryotic flagellar organization. In addition, there was an extracellular cytoplasm canal between the cytoplasmic sheath and the flagellum. Conclusions . A principal components analysis explained the individual morphological variation fairly well. Of the total accumulated variance, 41.45% was accounted for by parameters related to the head and midpiece of the sperm and the length of the flagellum. Comparing the present study with previous studies of morphology of sturgeon spermatozoa, there were large inter‐ or intra‐specific differences that could be valuable taxonomically. Article in Journal/Newspaper Acipenser baerii Siberian sturgeon Wiley Online Library Fossa ENVELOPE(9.795,9.795,62.990,62.990) Biology of the Cell 99 2 103 115 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Background information . Available data concerning the sperm morphology of teleost fishes demonstrate wide variation. In the present study, the spermatozoa of Siberian sturgeon ( Acipenser baerii Brandt, 1869), a chondrostean fish, was investigated. In contrast with teleost fish, chondrostean spermatozoa have a head with a distinct acrosome, whereas other structures, such as a midpiece and a single flagellum, are present in spermatozoa of most species. Results . The average length of the head including the acrosome and the midpiece was 7.01±0.83 μm. Ten posterolateral projections derived from the acrosome were present on a subacrosomal region, with mean lengths of 0.94±0.15 μm and widths of 0.93±0.11 μm. The nucleus consisted of electrodense homogeneous nuclear chromatin. Three intertwining endonuclear canals, bound by membranes, traversed the nucleus longitudinally from the acrosomal end to the basal nuclear fossa region. There were between three and six mitochondria, two types of centrioles (proximal and distal) in the midpiece and two vacuoles composed of lipid droplets. The flagellum (44.75±4.93 μm in length), originating from the centriolar apparatus, had a typical 9+2 eukaryotic flagellar organization. In addition, there was an extracellular cytoplasm canal between the cytoplasmic sheath and the flagellum. Conclusions . A principal components analysis explained the individual morphological variation fairly well. Of the total accumulated variance, 41.45% was accounted for by parameters related to the head and midpiece of the sperm and the length of the flagellum. Comparing the present study with previous studies of morphology of sturgeon spermatozoa, there were large inter‐ or intra‐specific differences that could be valuable taxonomically. |
format |
Article in Journal/Newspaper |
author |
Psenicka, Martin Alavi, S.M. Hadi Rodina, Marek Gela, David Nebesarova, Jana Linhart, Otomar |
spellingShingle |
Psenicka, Martin Alavi, S.M. Hadi Rodina, Marek Gela, David Nebesarova, Jana Linhart, Otomar Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy |
author_facet |
Psenicka, Martin Alavi, S.M. Hadi Rodina, Marek Gela, David Nebesarova, Jana Linhart, Otomar |
author_sort |
Psenicka, Martin |
title |
Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy |
title_short |
Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy |
title_full |
Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy |
title_fullStr |
Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy |
title_full_unstemmed |
Morphology and ultrastructure of Siberian sturgeon ( Acipenser baerii) spermatozoa using scanning and transmission electron microscopy |
title_sort |
morphology and ultrastructure of siberian sturgeon ( acipenser baerii) spermatozoa using scanning and transmission electron microscopy |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1042/bc20060060 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1042%2FBC20060060 https://onlinelibrary.wiley.com/doi/pdf/10.1042/BC20060060 |
long_lat |
ENVELOPE(9.795,9.795,62.990,62.990) |
geographic |
Fossa |
geographic_facet |
Fossa |
genre |
Acipenser baerii Siberian sturgeon |
genre_facet |
Acipenser baerii Siberian sturgeon |
op_source |
Biology of the Cell volume 99, issue 2, page 103-115 ISSN 0248-4900 1768-322X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1042/bc20060060 |
container_title |
Biology of the Cell |
container_volume |
99 |
container_issue |
2 |
container_start_page |
103 |
op_container_end_page |
115 |
_version_ |
1802638376894988288 |