Flavobacterium columnare
Flavobacterium columnare is a thin Gram-negative rod bacterium of the genus Flavobacterium. The name derives from the way in which the organism grows in rhizoid columnar formations.[2]
| Flavobacterium columnare | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | Bacteroidetes |
| Class: | |
| Order: | |
| Family: | Flavobacteriaceae |
| Genus: | |
| Species: | F. columnare |
| Binomial name | |
| Flavobacterium columnare (Bernardet and Grimont 1989) Bernardet et al. 1996[1] | |
The species was first described by Davis (1922), and the name was validated by Bernardet and Grimont (1989).[3]
F. columnare can be identified in the laboratory by a five-step method that demonstrates:
- the ability to grow on a medium containing neomycin and polymyxin B
- production of yellow pigmented rhizoid (root-like in appearance) colonies
- production of a gelatin-degrading enzyme
- binding of Congo red dye to the colony
- production of a chondroitin sulfate-degrading enzyme[4]
The species has been known previously as Flexibacter columnaris, Bacillus columnaris, and Cytophaga columnaris.
F. columnare is one of the oldest known diseases among warm-water fish, and manifests itself as an infection commonly known as columnaris. Infections are the second leading cause of mortality in pond raised catfish in the southeastern United States.[4]
References
- Parte, A.C. "Flavobacterium". LPSN.
- Declercq, Annelies Maria; Haesebrouck, Freddy; Van Den Broeck, Wim; Bossier, Peter; Decostere, Annemie (2013). "Columnaris disease in fish: A review with emphasis on bacterium-host interactions". Veterinary Research. 44: 27. doi:10.1186/1297-9716-44-27. PMC 3648355. PMID 23617544.
- Bertolini, J. M.; Rohovec, J.S. (1992). "Electrophoretic detection of proteases from different Flexibacter columnaris strains and assessment of their variability". Diseases of Aquatic Organisms. 12: 121–128. doi:10.3354/dao012121.
- Durborrow, RM; Thune, RL; Hawke, JP; Camus, AC (1988). "Columnaris Disease - A Bacterial Infection Caused by Flavobacterium columnare" (PDF). SRAC Publication (479). Retrieved 10 July 2016.
External links
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