Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease
The interbranchial lymphoid tissue (ILT) was recently described in the gills of salmonids. This study examined changes in the ILT during a parasitic infection in marine environment, using amoebic gill disease (AGD) as a model. Atlantic salmon ( Salmo salar ) experimentally infected with Neoparamoeba...
Published in: | Fish & Shellfish Immunology |
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Academic Press Ltd Elsevier Science Ltd
2014
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Online Access: | https://doi.org/10.1016/j.fsi.2014.10.003 http://www.ncbi.nlm.nih.gov/pubmed/25451002 http://ecite.utas.edu.au/96883 |
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ftunivtasecite:oai:ecite.utas.edu.au:96883 2023-05-15T15:31:22+02:00 Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease Norte dos Santos, CC Adams, MB Leef, MJ Nowak, BF 2014 https://doi.org/10.1016/j.fsi.2014.10.003 http://www.ncbi.nlm.nih.gov/pubmed/25451002 http://ecite.utas.edu.au/96883 en eng Academic Press Ltd Elsevier Science Ltd http://dx.doi.org/10.1016/j.fsi.2014.10.003 Norte dos Santos, CC and Adams, MB and Leef, MJ and Nowak, BF, Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease, Fish and Shellfish Immunology, 41, (2) pp. 600-607. ISSN 1050-4648 (2014) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/25451002 http://ecite.utas.edu.au/96883 Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Refereed Article PeerReviewed 2014 ftunivtasecite https://doi.org/10.1016/j.fsi.2014.10.003 2019-12-13T21:59:08Z The interbranchial lymphoid tissue (ILT) was recently described in the gills of salmonids. This study examined changes in the ILT during a parasitic infection in marine environment, using amoebic gill disease (AGD) as a model. Atlantic salmon ( Salmo salar ) experimentally infected with Neoparamoeba perurans were sampled at 0, 3, 7, 14 and 28 days post challenge. Transversal sections of three areas of the gills (dorsal, medial and ventral) were histologically assessed for morphological and cellular changes. AGD induced morphological changes and a cellular response in the ILT of affected fish. These changes included a significant increase in the ILT surface area in fish 28 days after AGD challenge, compared to control fish at the same time point. The length of the ILT increased significantly 28 days post exposure in the dorsal area of the gill arch in the fish affected by AGD. The lymphocyte density of the ILT increased after AGD challenge, peaking at 7 days post exposure; however, by 28 days post exposure, a reduction of lymphocyte density to values close to pre-infection levels was observed. PCNA immunostaining revealed that epithelial hyperplasia was the most likely factor contributing to the ILT enlargement in the affected fish. Article in Journal/Newspaper Atlantic salmon Salmo salar eCite UTAS (University of Tasmania) Fish & Shellfish Immunology 41 2 600 607 |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
spellingShingle |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Norte dos Santos, CC Adams, MB Leef, MJ Nowak, BF Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease |
topic_facet |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
description |
The interbranchial lymphoid tissue (ILT) was recently described in the gills of salmonids. This study examined changes in the ILT during a parasitic infection in marine environment, using amoebic gill disease (AGD) as a model. Atlantic salmon ( Salmo salar ) experimentally infected with Neoparamoeba perurans were sampled at 0, 3, 7, 14 and 28 days post challenge. Transversal sections of three areas of the gills (dorsal, medial and ventral) were histologically assessed for morphological and cellular changes. AGD induced morphological changes and a cellular response in the ILT of affected fish. These changes included a significant increase in the ILT surface area in fish 28 days after AGD challenge, compared to control fish at the same time point. The length of the ILT increased significantly 28 days post exposure in the dorsal area of the gill arch in the fish affected by AGD. The lymphocyte density of the ILT increased after AGD challenge, peaking at 7 days post exposure; however, by 28 days post exposure, a reduction of lymphocyte density to values close to pre-infection levels was observed. PCNA immunostaining revealed that epithelial hyperplasia was the most likely factor contributing to the ILT enlargement in the affected fish. |
format |
Article in Journal/Newspaper |
author |
Norte dos Santos, CC Adams, MB Leef, MJ Nowak, BF |
author_facet |
Norte dos Santos, CC Adams, MB Leef, MJ Nowak, BF |
author_sort |
Norte dos Santos, CC |
title |
Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease |
title_short |
Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease |
title_full |
Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease |
title_fullStr |
Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease |
title_full_unstemmed |
Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease |
title_sort |
changes in the interbranchial lymphoid tissue of atlantic salmon ( salmo salar ) affected by amoebic gill disease |
publisher |
Academic Press Ltd Elsevier Science Ltd |
publishDate |
2014 |
url |
https://doi.org/10.1016/j.fsi.2014.10.003 http://www.ncbi.nlm.nih.gov/pubmed/25451002 http://ecite.utas.edu.au/96883 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://dx.doi.org/10.1016/j.fsi.2014.10.003 Norte dos Santos, CC and Adams, MB and Leef, MJ and Nowak, BF, Changes in the interbranchial lymphoid tissue of Atlantic salmon ( Salmo salar ) affected by amoebic gill disease, Fish and Shellfish Immunology, 41, (2) pp. 600-607. ISSN 1050-4648 (2014) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/25451002 http://ecite.utas.edu.au/96883 |
op_doi |
https://doi.org/10.1016/j.fsi.2014.10.003 |
container_title |
Fish & Shellfish Immunology |
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41 |
container_issue |
2 |
container_start_page |
600 |
op_container_end_page |
607 |
_version_ |
1766361872123035648 |