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Scientific classification
Domain: Bacteria
Phylum: Bacteroidetes
Class: Flavobacteriia
Order: Flavobacteriales
Family: Flavobacteriaceae
Genus: Flavobacterium
Bergey, et al. 1923

F. akiainvivens
F. aquatile
F. aureus
F. balustinum
F. branchiophilum
F. breve
F. columnare
F. denitrificans
F. flevense
F. frigidarium
F. gondwanense
F. hydatis
F. johnsoniae
F. multivorum
F. okeanokoites
F. pectinovorum
F. psychrophilum
F. saccharophilum
F. salegens
F. scophthalmum
F. succinans
F. xanthum

Flavobacterium is a genus of Gram-negative, non-motile and motile, rod-shaped bacteria that consists of 130 recognized species[1][2] as well as three newly proposed species (F. gondwanense,[3] F. salegens,[3] and F. scophthalmum[4]). Flavobacteria are found in soil and fresh water in a variety of environments. Several species are known to cause disease in freshwater fish.[5]

Flavobacterium psychrophilum causes the bacterial cold water disease (BCWD) on salmonids and the rainbow trout fry disease (RTFS) on rainbow trouts. Flavobacterium columnare causes the cotton-wool disease on freshwater fishes. Flavobacterium branchiophilum causes the bacterial gill disease (BGD) on trouts.

Nylon-eating bacteria are a strain of Flavobacterium that is capable of digesting certain byproducts of nylon 6 manufacture.


  1. ^ http://www.bacterio.net/flavobacterium.html
  2. ^ Bergey's Manual of Systematic Bacteriology, 2nd ed., vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria) (D.R. Boone and R.W. Castenholz, eds.), Springer-Verlag, New York (2001). pp. 465-466.
  3. ^ a b Dobson; Colwell, RR; McMeekin, TA; Franzmann, PD; et al. (Jan 1993). "Direct sequencing of the polymerase chain reaction-amplified 16S rRNA gene of Flavobacterium gondwanense sp. nov. and Flavobacterium salegens sp nov., two new species from a hypersaline antarctic lake". Int J Syst Bacteriol. 43 (1): 77–83. doi:10.1099/00207713-43-1-77. PMID 7678983. 
  4. ^ Mudarris; Austin, B.; Segers, P.; Vancanneyt, M.; Hoste, B.; Bernardet, J. F.; et al. (Jan 1993). "Flavobacterium scophthalmum sp. nov., a pathogen of turbot (Scophthalmus maximus L.)". Int J Syst Bacteriol. 44 (1): 77–83. doi:10.1099/00207713-44-3-447. PMID 8068540. 
  5. ^ Bernardet; et al. (Jul 1994). "Cutting a Gordian Knot: Emended Classification and Description of the Genus Flavobacterium, Emended Description of the Family Flavobacteriaceae, and Proposal of Flaviobacterium hydatis nom. nov. (Basonym, Cytophaga aquatalis Strohl and Tait 1978)". Int J Syst Bacteriol. 46 (3): 447–53. doi:10.1099/00207713-46-1-128.