Pathogenicity and clinical symtoms: The results showed that Flexibacter
columnaris species was pathogenic as clinical signs were observed in the external surface of fingerlings in the different fish ponds and suspected fish held in the aquarium.
Cytophaga psychrophila (= Flexibacter
psychrophilus) (Borg.) histopathology associated with mortalities among farmed rainbow trout, Oncorhynchus mykiss (Walbaum) in the U.K.
En D se muestra un cultivo puro de una bacteria fusiforme deslizante, probablemente un Flexibacter
, aislado del mismo micronicho superficial.
The Antarctic CRC has identified five groups of PUFA-producing bacteria: Shewanella, Colwellia, Flexibacter
and Psychroflexus from Antarctic sea ice, and Moritella from the deep sea.
Although the normal bacterial flora associated with fish larvae can have a probiotic effect, some studies have shown negative effects caused by the presence of opportunistic bacteria, such as, Flexibacter
ovolyticus, Vibrio salmonicida and Vibrio anguilarum (Hansen et al., 1992; Bergh et al., 1994).
(2008) reported the frst record in Brazil of the flamentous bacteria Flexibacter
maritimus (Wakabayashi et al., 1986) from the hatching of Litopenaeus vannamei post-larvae (Boone, 1931).
Las bacterias Gram negativas son las principales causantes de enfermedades en los salmonidos; siendo el grupo de las flavobacterias responsables de cuadros patologicos habituales que afectan la piel, aletas y branquias y son conocidas como la "enfermedad bacteriana de la branquia" o "enfermedad de la columnaris"; pero en algunos casos como las infecciones por Flavobacterium psychrophilum (antes Flexibacter
psychrophilus o Cytophagapsychrophila) (Bernardet et al.
In addition, captive populations of adults have been affected by diseases such as bacterial pericarditis, Flexibacter
It was subsequently called Flexibacter
columnaris (Leadbetter, 1974), but in 1996 it was transferred to the genus Flavobacterium and was validated by publication in the International Journal of Systematic Bacteriology (Bernardet et al., 2002).
The most commonly found genera are Cytophaga sp., Flavobacterium sp., Flexibacter
sp., Leucothrix sp.
Eleven bacterial genera were identified in pre-fattening and fattening tilapia, foremost among them Arthrobacter sp., Enterococcus sp, Staphylococcus sp., Vibrios sp., Micrococcus sp., Streptococcus sp, Aeromonas sp, Pseudomonas sp., Edwardsiella sp., Flexibacter