%0 Journal Article
%T First isolation and characterization of Chryseobacterium shigense from rainbow trout
%A Leydis Zamora
%A Ana I Vela
%A Ma Angel Palacios
%A Lucas Dom¨ªnguez
%A Jos¨¦ Fern¨¢ndez-Garayz¨¢bal
%J BMC Veterinary Research
%D 2012
%I BioMed Central
%R 10.1186/1746-6148-8-77
%X Chryseobacterium shigense was isolated from the liver, kidney and gills of diseased rainbow trout in different disease episodes that occurred in a fish farm between May 2008 and June 2009. Identity of the isolates was confirmed by 16£¿S rRNA gene sequencing and phenotypic characterization. Isolates represented a single strain as determined by random amplified polymorphic DNA analysis.This is the first description of the recovery of C. shigense from clinical specimens in trout, a very different habitat to fresh lactic acid beverage where it was initially isolated.Members the genus Chryseobacterium are widely distributed microorganisms that can be recovered from a wide variety of environments, such as fresh water, sewage and wastewater, soil or food sources, such as milk, poultry and meat and dairy products [1]. Some species of Chryseobacterium have been involved in human infections, acting as sporadic but severe opportunistic nosocomial pathogens [2,3]. In veterinary medicine, chryseobacteria are not relevant pathogens for domestic animals, but they are widely distributed in aquatic environments and fish farms [1,4]. Until recently members of the genus Chryseobacterium were not commonly associated with fish infections. However, there has been an increase in the frequency of clinical cases in which Chryseobacterium sp. strains have been isolated from different fish species. Thus, Chryseobacterium balustinumChryseobacterium scophtalmum and Chryseobacterium joostei have been isolated from diseased fish [4-6]. More recently, Chryseobacterium piscicola has been reported to produce mortalities in farmed Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) in Chile and Finland [7-9], Chryseobacterium arothri was isolated from the kidneys of the pufferfish Arothron hispidus in Hawaii [10] and Chryseobacterium chaponense from diseased farmed Atlantic salmon in Chile [11]. In fact, some Chryseobacterium species are considered potentially emerging pathogens in f
%U http://www.biomedcentral.com/1746-6148/8/77