A thicker chorion gives ova of Atlantic salmon (Salmo salar L.) the upper hand against Saprolegnia infections
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...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2016
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/69428 |
| _version_ | 1855515785255976960 |
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| author | Songe, M.M. Willems, A. Sarowar, M.N. Rajan, K. Evensen, A. Drynan, K. Skaar, I. West, P. van |
| author_browse | Drynan, K. Evensen, A. Rajan, K. Sarowar, M.N. Skaar, I. Songe, M.M. West, P. van Willems, A. |
| author_facet | Songe, M.M. Willems, A. Sarowar, M.N. Rajan, K. Evensen, A. Drynan, K. Skaar, I. West, P. van |
| author_sort | Songe, M.M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Journal Article |
| id | CGSpace69428 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace694282023-09-08T12:33:34Z 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, A. Drynan, K. Skaar, I. West, P. van fish 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. 2016-07 2015-12-30T11:28:52Z 2015-12-30T11:28:52Z Journal Article https://hdl.handle.net/10568/69428 en Limited Access Wiley Songe, M.M., Willems, A., Sarowar, M.N., Rajan, K., Evensen, Ø., Drynan, K., Skaar, I. and West, P. van. 2016. A thicker chorion gives ova of Atlantic salmon (Salmo salar L.) the upper hand against Saprolegnia infections. Journal of Fish Diseases 39(7):879-888. |
| spellingShingle | fish Songe, M.M. Willems, A. Sarowar, M.N. Rajan, K. Evensen, A. Drynan, K. Skaar, I. West, P. van A thicker chorion gives ova of Atlantic salmon (Salmo salar L.) the upper hand against Saprolegnia infections |
| title | 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_short | 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 |
| topic | fish |
| url | https://hdl.handle.net/10568/69428 |
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