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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Bacteria => Proteobacteria => Gammaproteobacteria => Pseudomonadales => Pseudomonadaceae => Pseudomonas =>
Pseudomonas anguilliseptica Wakabayashi & Egusa 1972.
Pseudomonas anguilliseptica Wakabayashi & Egusa 1972.
Gram negative, motile (more intense at 15 -25 °C) with monotrichous flagella, 0.4 x 2
μm rods. Filamentous forms of 0.8 x 5-10 μm may be formed.
μm rods. Filamentous forms of 0.8 x 5-10 μm may be formed.
On solid medium: small (< 1 mm), round, regular, convex, grayish colonies.
May be haemolytic. Aerobic, growth temperature 4-30 ºC. Do not grow at 37 ºC.
Media:Trypticase Soy Agar; Mueller-Hinton agar; Mac Conkey agar; Cytophaga agar.
May be haemolytic. Aerobic, growth temperature 4-30 ºC. Do not grow at 37 ºC.
Media:Trypticase Soy Agar; Mueller-Hinton agar; Mac Conkey agar; Cytophaga agar.
Isolated from water & fish (Anguilla japonica, Anguilla anguilla).
Causes “red spot disease” in fish (eels) - petechial haemorrhages on the skin and internal organs. Pathogenicity is increased when
water temperature falls below 16 ºC. May be a cause of eye disease in Baltic herring. Pathogenic to japanese eel, ayu, loach
(Misgurnus anguillicaudatus) and blue-gill sunfish (Lepomis macrochirus).
Under laboratory conditions expressed low pathogenicity to rainbow trout, carp (Cyprinus carpio), crucian carp (Carassius carassius),
and goldfish (Carassius auratus).
water temperature falls below 16 ºC. May be a cause of eye disease in Baltic herring. Pathogenic to japanese eel, ayu, loach
(Misgurnus anguillicaudatus) and blue-gill sunfish (Lepomis macrochirus).
Under laboratory conditions expressed low pathogenicity to rainbow trout, carp (Cyprinus carpio), crucian carp (Carassius carassius),
and goldfish (Carassius auratus).
- Wakabayashi H. & Egusa S.: Characteristics of a Pseudomonas sp. from an epizootic of pond-cultured eels (Anguilla
japonica). Bulletin of the Japanese Society of Scientific Fisheries, 1972, 38, 577-587. - Franck C., J. Berthe, Christian Michel, Jean-Franqois Bernardet : Identification of Pseudomonas anguilliseptica isolated from
several fish species in France. DISEASES OF AQUATIC ORGANISMS, vol. 21: 151-155, 1995. - Lars Lonnstrom, Tom Wiklund, Goran Bylund: Pseudomonas anguilliseptica isolated from Baltic herring Clupea harengus
membras with eye lesions. DISEASES OF AQUATIC ORGANISMS, Vol. 18: 143-147.1994
Strains initially capable of hydrolyzing gelatin readily lost this property after
subculture. See table.
subculture. See table.
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Fluorescent dif.
pigments |
Non fluoresc. diffusible pigm. |
Non fluorescent non dif. pigm. |
Growth at 41'C |
Arginine dihydrolase |
Oxidase |
Nitrates |
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- |
- |
- |
- |
= |
+ |
- |
|
Gelatin hydrolysis |
Starch hydrolysis |
Glucose utilization |
Trehalose utilization |
2-Ketogluconate utilization |
meso-Inositol utilization |
Lecithinase |
Urease |
Esculin |
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= |
- |
X |
X |
X |
X |
X |
- |
- |
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