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1Department of Microbiology, Oregon State University, Nash Hall 220, Corvallis, Oregon 97331-3804
2Laboratory for Fish Disease Research, Department of Microbiology, Mark O. Hatfield Marine Science Center, Oregon State University, Newport, Oregon 97365-5296
* Corresponding author.
ABSTRACT
A novel intracellular pathogen morphologically similar to the ehrlichiae has been isolated in cell culture and identified as the cause of an epizootic disease of salmonid fish. Like the ehrlichiae, the salmonid pathogen, designated strain LF-89, replicates within membrane-bound cytoplasmic vacuoles in host cells. This agent is the first with characteristics of this type to be isolated from a fish. Analysis of the LF-89 16S rRNA indicated that, unlike the ehrlichiae, LF-89 is a gamma proteobacterium distantly related to Coxiella burnetii and perhaps Wolbachia persica. A new genus and species (Piscirickettsia salmonis gen. nov., sp. nov.) are proposed for this organism, with ATCC(R) VR 1361 as the type strain.
Oregon Agricultural Experiment Station Technical Paper no. 9622. This article has been cited by other articles:
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