A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta)
Gill disease in salmonids is characterized by a multifactorial aetiology. Epitheliocystis of the gill lamellae caused by obligate intracellular bacteria of the order Chlamydiales is one known factor; however, their diversity has greatly complicated analyses to establish a causal relationship. In add...
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2012
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Online Access: | https://doi.org/10.1111/j.1462-2920.2011.02670.x |
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ftunivscoast:usc:13706 2023-05-15T15:32:33+02:00 A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta) Schmidt-Posthaus, H Polkinghorne, A Nufer, L Schifferli, A Zimmermann, D R Segner, H Steiner, P Vaughan, L 2012 https://doi.org/10.1111/j.1462-2920.2011.02670.x eng eng Wiley-Blackwell Publishing Ltd. usc:13706 URN:ISSN: 1462-2912 FoR 0603 (Evolutionary Biology) Journal Article 2012 ftunivscoast https://doi.org/10.1111/j.1462-2920.2011.02670.x 2018-07-29T23:50:04Z Gill disease in salmonids is characterized by a multifactorial aetiology. Epitheliocystis of the gill lamellae caused by obligate intracellular bacteria of the order Chlamydiales is one known factor; however, their diversity has greatly complicated analyses to establish a causal relationship. In addition, tracing infections to a potential environmental source is currently impossible. In this study, we address these questions by investigating a wild brown trout (Salmo trutta) population from seven different sites within a Swiss river system. One age class of fish was followed over 18 months. Epitheliocystis occurred in a site-specific pattern, associated with peak water temperatures during summer months. No evidence of a persistent infection was found within the brown trout population, implying an as yet unknown environmental source. For the first time, we detected 'Candidatus Piscichlamydia salmonis' and 'Candidatus Clavochlamydia salmonicola' infections in the same salmonid population, including dual infections within the same fish. These organisms are strongly implicated in gill disease of caged Atlantic salmon in Norway and Ireland. The absence of aquaculture production within this river system and the distance from the sea, suggests a freshwater origin for both these bacteria and offers new possibilities to explore their ecology free from aquaculture influences. © 2011 Society for Applied Microbiology and Blackwell Publishing Ltd. Article in Journal/Newspaper Atlantic salmon University of the Sunshine Coast, Queensland, Australia: COAST Research Database Norway Environmental Microbiology 14 8 2048 2057 |
institution |
Open Polar |
collection |
University of the Sunshine Coast, Queensland, Australia: COAST Research Database |
op_collection_id |
ftunivscoast |
language |
English |
topic |
FoR 0603 (Evolutionary Biology) |
spellingShingle |
FoR 0603 (Evolutionary Biology) Schmidt-Posthaus, H Polkinghorne, A Nufer, L Schifferli, A Zimmermann, D R Segner, H Steiner, P Vaughan, L A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta) |
topic_facet |
FoR 0603 (Evolutionary Biology) |
description |
Gill disease in salmonids is characterized by a multifactorial aetiology. Epitheliocystis of the gill lamellae caused by obligate intracellular bacteria of the order Chlamydiales is one known factor; however, their diversity has greatly complicated analyses to establish a causal relationship. In addition, tracing infections to a potential environmental source is currently impossible. In this study, we address these questions by investigating a wild brown trout (Salmo trutta) population from seven different sites within a Swiss river system. One age class of fish was followed over 18 months. Epitheliocystis occurred in a site-specific pattern, associated with peak water temperatures during summer months. No evidence of a persistent infection was found within the brown trout population, implying an as yet unknown environmental source. For the first time, we detected 'Candidatus Piscichlamydia salmonis' and 'Candidatus Clavochlamydia salmonicola' infections in the same salmonid population, including dual infections within the same fish. These organisms are strongly implicated in gill disease of caged Atlantic salmon in Norway and Ireland. The absence of aquaculture production within this river system and the distance from the sea, suggests a freshwater origin for both these bacteria and offers new possibilities to explore their ecology free from aquaculture influences. © 2011 Society for Applied Microbiology and Blackwell Publishing Ltd. |
format |
Article in Journal/Newspaper |
author |
Schmidt-Posthaus, H Polkinghorne, A Nufer, L Schifferli, A Zimmermann, D R Segner, H Steiner, P Vaughan, L |
author_facet |
Schmidt-Posthaus, H Polkinghorne, A Nufer, L Schifferli, A Zimmermann, D R Segner, H Steiner, P Vaughan, L |
author_sort |
Schmidt-Posthaus, H |
title |
A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta) |
title_short |
A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta) |
title_full |
A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta) |
title_fullStr |
A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta) |
title_full_unstemmed |
A natural freshwater origin for two chlamydial species, Candidatus Piscichlamydia salmonis and Candidatus Clavochlamydia salmonicola, causing mixed infections in wild brown trout (Salmo trutta) |
title_sort |
natural freshwater origin for two chlamydial species, candidatus piscichlamydia salmonis and candidatus clavochlamydia salmonicola, causing mixed infections in wild brown trout (salmo trutta) |
publisher |
Wiley-Blackwell Publishing Ltd. |
publishDate |
2012 |
url |
https://doi.org/10.1111/j.1462-2920.2011.02670.x |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
usc:13706 URN:ISSN: 1462-2912 |
op_doi |
https://doi.org/10.1111/j.1462-2920.2011.02670.x |
container_title |
Environmental Microbiology |
container_volume |
14 |
container_issue |
8 |
container_start_page |
2048 |
op_container_end_page |
2057 |
_version_ |
1766363039004622848 |