Flavobacterium branchiophila sp. nov., a Causative Agent of Bacterial Gill Disease of Freshwater Fishes

1989/07/01 by H. WAKABAYASHI, H. Wakabayashi, G. J. HUH +3 · 87 citations
Environmental Science · Immunology and Microbiology · #Anatomy #Aquaculture disease management and microbiota #Bacteria #Bacteriophages and microbial interactions #Biochemistry #Biology #Cytophaga #Flavobacterium #Fructose #Maltose #Microbial infections and disease research #Microbiology #Pseudomonas #Starch #Strain (injury) #Sucrose #Trehalose

paper · doi:10.1099/00207713-39-3-213

published in International Journal of Systematic Bacteriology 39(3), 213-216 (Microbiology Society)

openalex publication_date 1989/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/26

Abstract

The name Flavobacterium branchiophila is proposed for a group of 16 bacterial strains that were isolated in Japan (5 isolates), Oregon (10 isolates), and Hungary (1 isolate) from cultured salmonids or sheatfish suffering from bacterial gill disease. These bacteria grow in cytophaga medium at temperatures between 10 and 25°C. The isolates are gram-negative, nonmotile, slender rods measuring 0.5 by 5 to 8 μm. They utilize gelatin, casein, starch, glucose, fructose, sucrose, maltose, and trehalose. The mean guanine-plus-cytosine content of the deoxyribonucleic acids of three selected strains was 30 mol %. Strain BGD-7721 (= ATCC 35035) is designated the type strain of the new species.

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• Detection and quantification of Flavobacterium psychrophilum in water and fish tissue samples by quantitative real time PCR. [europepmc]
• Draft Whole-Genome Sequences of 18 Flavobacterium spp. [europepmc]
• Novel insights on microbiome dynamics during a gill disease outbreak in farmed rainbow trout (Oncorhynchus mykiss). [europepmc]

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