Detection of the myxosporean parasite Parvicapsula pseudobranchicola in Atlantic salmon (Salmo salar L.) using in situ hybridization (ISH)

Parvicapsula pseudobranchicola is a marine myxosporean parasite infecting farmed Atlantic salmon (Salmo salar). A major site for the parasite is the pseudobranch, which may be destroyed in heavily infected fish. Parvicapsulosis may be associated with significant mortality, although the main effect o...

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Bibliographic Details
Published in:Parasites & Vectors
Main Authors: Markussen, Turhan, Agusti, Celia, Karlsbakk, Egil, Nylund, Are, Brevik, Øyvind, Hansen, Haakon
Format: Article in Journal/Newspaper
Language:English
Published: BioMed Central 2015
Subjects:
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923
Atlantic salmon
Salmo salar
Online Access:http://hdl.handle.net/11250/281496
https://doi.org/10.1186/s13071-015-0718-4
Description
Summary:Parvicapsula pseudobranchicola is a marine myxosporean parasite infecting farmed Atlantic salmon (Salmo salar). A major site for the parasite is the pseudobranch, which may be destroyed in heavily infected fish. Parvicapsulosis may be associated with significant mortality, although the main effect of infections seems to be runting. In situ hybridization (ISH) is, in the absence of specific antibodies, the preferred method for the detection of cell- and tissue tropisms of myxozoans in the early phases of infection of the host, and provides information about the possible association between the pathogen and pathology. A positive diagnosis of parvicapsulosis is based on histopathology and PCR. The aim of the present work was to develop a specific, sensitive and robust ISH assay for the detection of P. pseudobranchicola in tissues.

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