Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon
The microstructure and tissue composition of the dentary bone in Atlantic salmon salmo salar parr were examined using a variety of histological and whole‐mount techniques. Proximally, the dentary is composed of typical cellular lamellar bone with Sharpey's fibres extending dorsally, proximally...
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crwiley:10.1111/j.0022-1112.2006.00998.x 2024-09-15T17:55:49+00:00 Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon Gillis, J. A. Witten, P. E. Hall, B. K. 2006 http://dx.doi.org/10.1111/j.0022-1112.2006.00998.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-1112.2006.00998.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-1112.2006.00998.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 68, issue 4, page 1133-1143 ISSN 0022-1112 1095-8649 journal-article 2006 crwiley https://doi.org/10.1111/j.0022-1112.2006.00998.x 2024-07-11T04:35:14Z The microstructure and tissue composition of the dentary bone in Atlantic salmon salmo salar parr were examined using a variety of histological and whole‐mount techniques. Proximally, the dentary is composed of typical cellular lamellar bone with Sharpey's fibres extending dorsally, proximally and ventrally. Meckel's cartilage is located medially through the entire length of the dentary, and degrades distally resulting in a short transitional zone between hyaline cartilage and connective tissue. At the distal tip of the dentary, isogenic clusters of chondrocytes of periosteal origin were observed secreting small amounts of pericellular cartilage matrix within the bone matrix. These characteristics are highly indicative of secondary chondrogenesis, and suggest that the apical part of the dentary bone in Atlantic salmon does not grow via ‘pure’ intramembranous ossification, but rather via a modified mode of periosteal ossification involving secondary cartilage and chondroid bone. Furthermore, the unusual mode of gender‐related dentary growth (kype formation) in adult male Atlantic salmon could be the continuation of a general mode of salmonid apical dentary growth. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 68 4 1133 1143 |
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Wiley Online Library |
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language |
English |
description |
The microstructure and tissue composition of the dentary bone in Atlantic salmon salmo salar parr were examined using a variety of histological and whole‐mount techniques. Proximally, the dentary is composed of typical cellular lamellar bone with Sharpey's fibres extending dorsally, proximally and ventrally. Meckel's cartilage is located medially through the entire length of the dentary, and degrades distally resulting in a short transitional zone between hyaline cartilage and connective tissue. At the distal tip of the dentary, isogenic clusters of chondrocytes of periosteal origin were observed secreting small amounts of pericellular cartilage matrix within the bone matrix. These characteristics are highly indicative of secondary chondrogenesis, and suggest that the apical part of the dentary bone in Atlantic salmon does not grow via ‘pure’ intramembranous ossification, but rather via a modified mode of periosteal ossification involving secondary cartilage and chondroid bone. Furthermore, the unusual mode of gender‐related dentary growth (kype formation) in adult male Atlantic salmon could be the continuation of a general mode of salmonid apical dentary growth. |
format |
Article in Journal/Newspaper |
author |
Gillis, J. A. Witten, P. E. Hall, B. K. |
spellingShingle |
Gillis, J. A. Witten, P. E. Hall, B. K. Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon |
author_facet |
Gillis, J. A. Witten, P. E. Hall, B. K. |
author_sort |
Gillis, J. A. |
title |
Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon |
title_short |
Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon |
title_full |
Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon |
title_fullStr |
Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon |
title_full_unstemmed |
Chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile Atlantic salmon |
title_sort |
chondroid bone and secondary cartilage contribute to apical dentary growth in juvenile atlantic salmon |
publisher |
Wiley |
publishDate |
2006 |
url |
http://dx.doi.org/10.1111/j.0022-1112.2006.00998.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-1112.2006.00998.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-1112.2006.00998.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 68, issue 4, page 1133-1143 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0022-1112.2006.00998.x |
container_title |
Journal of Fish Biology |
container_volume |
68 |
container_issue |
4 |
container_start_page |
1133 |
op_container_end_page |
1143 |
_version_ |
1810432047173337088 |