A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections
Abstract Since the ban of malachite green in the fish farming industry, finding alternative ways of controlling Saprolegnia infections has become of utmost importance. Much effort has been made to elucidate the mechanisms by which Saprolegnia invades fish eggs. Little is known about the defence mech...
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Online Access: | http://dx.doi.org/10.1111/jfd.12421 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12421 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12421 |
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crwiley:10.1111/jfd.12421 2024-09-30T14:32:26+00:00 A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections Songe, M M Willems, A Sarowar, M N Rajan, K Evensen, Ø Drynan, K Skaar, I van West, P University of Aberdeen Biotechnology and Biological Sciences Research Council Natural Environment Research Council Commonwealth Scholarship Commission 2015 http://dx.doi.org/10.1111/jfd.12421 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12421 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12421 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 39, issue 7, page 879-888 ISSN 0140-7775 1365-2761 journal-article 2015 crwiley https://doi.org/10.1111/jfd.12421 2024-09-05T05:03:16Z Abstract Since the ban of malachite green in the fish farming industry, finding alternative ways of controlling Saprolegnia infections has become of utmost importance. Much effort has been made to elucidate the mechanisms by which Saprolegnia invades fish eggs. Little is known about the defence mechanisms of the hosts, making some eggs more prone to infection than others. One clue might lie in the composition of the eggs. As the immune system in the embryos is not developed yet, the difference in infection levels could be explained by factors influenced by the mother herself, by either transferring passive immunity, influencing the physical aspects of the eggs or both. One of the physical aspects that could be influenced by the female is the chorion, the extracellular coat surrounding the fish egg, which is in fact the first major barrier to be overcome by Saprolegnia spp. Our results suggest that a thicker chorion in eggs from Atlantic salmon gives a better protection against Saprolegnia spp. In addition to the identification of differences in sensitivity of eggs in a fish farm set‐up, we were able to confirm these results in a laboratory‐controlled challenge experiment. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Diseases 39 7 879 888 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Since the ban of malachite green in the fish farming industry, finding alternative ways of controlling Saprolegnia infections has become of utmost importance. Much effort has been made to elucidate the mechanisms by which Saprolegnia invades fish eggs. Little is known about the defence mechanisms of the hosts, making some eggs more prone to infection than others. One clue might lie in the composition of the eggs. As the immune system in the embryos is not developed yet, the difference in infection levels could be explained by factors influenced by the mother herself, by either transferring passive immunity, influencing the physical aspects of the eggs or both. One of the physical aspects that could be influenced by the female is the chorion, the extracellular coat surrounding the fish egg, which is in fact the first major barrier to be overcome by Saprolegnia spp. Our results suggest that a thicker chorion in eggs from Atlantic salmon gives a better protection against Saprolegnia spp. In addition to the identification of differences in sensitivity of eggs in a fish farm set‐up, we were able to confirm these results in a laboratory‐controlled challenge experiment. |
author2 |
University of Aberdeen Biotechnology and Biological Sciences Research Council Natural Environment Research Council Commonwealth Scholarship Commission |
format |
Article in Journal/Newspaper |
author |
Songe, M M Willems, A Sarowar, M N Rajan, K Evensen, Ø Drynan, K Skaar, I van West, P |
spellingShingle |
Songe, M M Willems, A Sarowar, M N Rajan, K Evensen, Ø Drynan, K Skaar, I van West, P A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections |
author_facet |
Songe, M M Willems, A Sarowar, M N Rajan, K Evensen, Ø Drynan, K Skaar, I van West, P |
author_sort |
Songe, M M |
title |
A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections |
title_short |
A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections |
title_full |
A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections |
title_fullStr |
A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections |
title_full_unstemmed |
A thicker chorion gives ova of Atlantic salmon ( Salmo salar L.) the upper hand against Saprolegnia infections |
title_sort |
thicker chorion gives ova of atlantic salmon ( salmo salar l.) the upper hand against saprolegnia infections |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/jfd.12421 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12421 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12421 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Diseases volume 39, issue 7, page 879-888 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfd.12421 |
container_title |
Journal of Fish Diseases |
container_volume |
39 |
container_issue |
7 |
container_start_page |
879 |
op_container_end_page |
888 |
_version_ |
1811636596772962304 |