Systemic infection in European perch with thermoadapted virulent Aeromonas salmonicida (Perca fluviatilis).

Rupp, Melanie; Pilo, Paola; Müller, Barbara; Knüsel, Ralph; von Siebenthal, Beat; Frey, Joachim; Sindilariu, Paul-Daniel; Schmidt-Posthaus, Heike (2019). Systemic infection in European perch with thermoadapted virulent Aeromonas salmonicida (Perca fluviatilis). Journal of fish diseases, 42(5), pp. 685-691. Wiley 10.1111/jfd.12970

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In non-salmonid fish, Aeromonas salmonicidacan cause local infections with severe skin ulcerations, known as atypical furunculosis. In this study, we present a systemic infection by a virulent A. salmonicidain European perch (Perca fluviatilis).This infection was diagnosed in a Swiss warm water recirculation aquaculture system. The isolate of A.  salmonicida encodes a type three secretion system (TTSS) most likely located on a plasmid similar to pAsa5/pASvirA, which is known to specify one of the main virulence attributes of the species A. salmonicida. However, the genes specifying the TTSS of the perch isolate show a higher temperature tolerance than strains isolated from cold-water fish. The function of the TTSS in virulence was verified in a cytotoxicity test using bluegill fry and epithelioma papulosum cyprinid cells.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Research Foci > Host-Pathogen Interaction
05 Veterinary Medicine > Other Institutions > Emeriti, Vetsuisse Faculty
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Center for Fish and Wildlife Health (FIWI)

UniBE Contributor:

Rupp, Melanie; Pilo, Paola; Müller, Barbara Silvia; von Siebenthal, Beat; Frey, Joachim and Schmidt-Posthaus, Heike

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 630 Agriculture

ISSN:

1365-2761

Publisher:

Wiley

Language:

English

Submitter:

Achim Braun Parham

Date Deposited:

31 Mar 2020 11:38

Last Modified:

31 Mar 2020 11:38

Publisher DOI:

10.1111/jfd.12970

PubMed ID:

30806486

Uncontrolled Keywords:

Aeromonas salmonicida European perch pAsa5/pASvirA temperature selection type three secretion system

BORIS DOI:

10.7892/boris.141724

URI:

https://boris.unibe.ch/id/eprint/141724

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