Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia
Arctic char Salvelinus alpinus farmed in different places in Austria and free of the viral diseases viral haemorrhagic septcaemia (VHS), infectious haematopoietic necrosis (IHN) and infectious pancreatic necrosis (IPN) experienced disease and mortality. Diseased fish showed skin ulceration and patho...
Published in: | Diseases of Aquatic Organisms |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Inter-Research
2009
|
Subjects: | |
Online Access: | https://boris.unibe.ch/38223/ |
id |
ftunivbern:oai:boris.unibe.ch:38223 |
---|---|
record_format |
openpolar |
spelling |
ftunivbern:oai:boris.unibe.ch:38223 2023-08-20T04:02:58+02:00 Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia Goldschmidt-Clermont, E. Hochwartner, O. Demarta, A. Caminada, A.P. Frey, J. 2009 https://boris.unibe.ch/38223/ eng eng Inter-Research https://boris.unibe.ch/38223/ info:eu-repo/semantics/restrictedAccess Goldschmidt-Clermont, E.; Hochwartner, O.; Demarta, A.; Caminada, A.P.; Frey, J. (2009). Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia. Diseases of aquatic organisms, 86(1), pp. 81-6. Oldendorf (Luhe) (D): Inter-Research 10.3354/dao02110 <http://dx.doi.org/10.3354/dao02110> info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion NonPeerReviewed 2009 ftunivbern https://doi.org/10.3354/dao02110 2023-07-31T21:00:16Z Arctic char Salvelinus alpinus farmed in different places in Austria and free of the viral diseases viral haemorrhagic septcaemia (VHS), infectious haematopoietic necrosis (IHN) and infectious pancreatic necrosis (IPN) experienced disease and mortality. Diseased fish showed skin ulceration and pathological signs of sepsis. Aeromonas sp. was isolated as pure culture from the kidney of freshly euthanized diseased fish. Three independent isolates from outbreaks that occurred on 2 of the affected farms were analyzed phylogenetically by DNA sequence analysis of the rrs and gyrB genes and phenotypically with biochemical reactions. All 3 isolates were identified as Aeromonas salmonicida subsp. smithia. Analysis of virulence genes in these isolates revealed the presence of a Type III secretion system as well as several related virulence effector genes including aexT, encoding the Aeromonas exotoxin AexT, aopP and aopH. These genes are characteristic for virulent strains of typical and atypical subspecies of A. salmonicida. Article in Journal/Newspaper Arctic Arctic Salvelinus alpinus BORIS (Bern Open Repository and Information System, University of Bern) Arctic Diseases of Aquatic Organisms 86 81 86 |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
description |
Arctic char Salvelinus alpinus farmed in different places in Austria and free of the viral diseases viral haemorrhagic septcaemia (VHS), infectious haematopoietic necrosis (IHN) and infectious pancreatic necrosis (IPN) experienced disease and mortality. Diseased fish showed skin ulceration and pathological signs of sepsis. Aeromonas sp. was isolated as pure culture from the kidney of freshly euthanized diseased fish. Three independent isolates from outbreaks that occurred on 2 of the affected farms were analyzed phylogenetically by DNA sequence analysis of the rrs and gyrB genes and phenotypically with biochemical reactions. All 3 isolates were identified as Aeromonas salmonicida subsp. smithia. Analysis of virulence genes in these isolates revealed the presence of a Type III secretion system as well as several related virulence effector genes including aexT, encoding the Aeromonas exotoxin AexT, aopP and aopH. These genes are characteristic for virulent strains of typical and atypical subspecies of A. salmonicida. |
format |
Article in Journal/Newspaper |
author |
Goldschmidt-Clermont, E. Hochwartner, O. Demarta, A. Caminada, A.P. Frey, J. |
spellingShingle |
Goldschmidt-Clermont, E. Hochwartner, O. Demarta, A. Caminada, A.P. Frey, J. Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia |
author_facet |
Goldschmidt-Clermont, E. Hochwartner, O. Demarta, A. Caminada, A.P. Frey, J. |
author_sort |
Goldschmidt-Clermont, E. |
title |
Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia |
title_short |
Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia |
title_full |
Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia |
title_fullStr |
Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia |
title_full_unstemmed |
Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia |
title_sort |
outbreaks of an ulcerative and haemorrhagic disease in arctic char salvelinus alpinus caused by aeromonas salmonicida subsp. smithia |
publisher |
Inter-Research |
publishDate |
2009 |
url |
https://boris.unibe.ch/38223/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Salvelinus alpinus |
genre_facet |
Arctic Arctic Salvelinus alpinus |
op_source |
Goldschmidt-Clermont, E.; Hochwartner, O.; Demarta, A.; Caminada, A.P.; Frey, J. (2009). Outbreaks of an ulcerative and haemorrhagic disease in Arctic char Salvelinus alpinus caused by Aeromonas salmonicida subsp. smithia. Diseases of aquatic organisms, 86(1), pp. 81-6. Oldendorf (Luhe) (D): Inter-Research 10.3354/dao02110 <http://dx.doi.org/10.3354/dao02110> |
op_relation |
https://boris.unibe.ch/38223/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3354/dao02110 |
container_title |
Diseases of Aquatic Organisms |
container_volume |
86 |
container_start_page |
81 |
op_container_end_page |
86 |
_version_ |
1774713473115095040 |