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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Bacteria => Proteobacteria => Gammaproteobacteria => Pseudomonadales => Pseudomonadaceae => Pseudomonas =>
Pseudomonas oryzihabitans Kodama et al. 1985.
Synonyms: Flavimonas oryzihabitans Holmes et al. 1987; CDC group Ve-2
Pseudomonas oryzihabitans Kodama et al. 1985.
Synonyms: Flavimonas oryzihabitans Holmes et al. 1987; CDC group Ve-2
Gram negative, 0.5-0.8 by 1.5-3 μm rods with polar monotrichous flagella.
No diffusible fluorescent pigments produced. A water-insoluble yellow pigment is
produced. No haemolysis on blood agar. S-type (sometimes R), 1-2 mm diameter
after 24-48 h, yellow colonies. A pellicle is formed on the surface of 0.5% glucose
nutrient broth.
Strictly aerobic, optimal temperature 30 - 37 ºC, no growth at 5 and 41 ºC.
Can grow on: Trypticase Soy Agar ± 5% sheep blood, Trypticase Soy Broth,
Mueller-Hinton agar, Mac Conkey agar, Glucose nutrient agar, Simmons citrate agar.
produced. No haemolysis on blood agar. S-type (sometimes R), 1-2 mm diameter
after 24-48 h, yellow colonies. A pellicle is formed on the surface of 0.5% glucose
nutrient broth.
Strictly aerobic, optimal temperature 30 - 37 ºC, no growth at 5 and 41 ºC.
Can grow on: Trypticase Soy Agar ± 5% sheep blood, Trypticase Soy Broth,
Mueller-Hinton agar, Mac Conkey agar, Glucose nutrient agar, Simmons citrate agar.
Isolated from soil, water , plants & clinical specimens.
Associated with the entomopathogenic nematode Steinernema abbasi.
Associated with the entomopathogenic nematode Steinernema abbasi.
Can cause peritonitis, endophtalmitis, septicemia, bacteremia; particularly in immunocompromised patients. Infection is frequently
linked to implanted or indwelling materials or to invasive procedures.
Pathogen for rice (Oryza sativa).Reported as possible biological agent towards some plant root pathogens (Fusarium oxysporum f.
sp. lycopersici, Rhizoctonia solani) & the plant-parasitic nematodes Meloidogyne spp. and Globodera rostochiensis.
linked to implanted or indwelling materials or to invasive procedures.
Pathogen for rice (Oryza sativa).Reported as possible biological agent towards some plant root pathogens (Fusarium oxysporum f.
sp. lycopersici, Rhizoctonia solani) & the plant-parasitic nematodes Meloidogyne spp. and Globodera rostochiensis.
- Anzay Y., Kudo Y. & Oyaizu H.: The phylogeny of the genera Chryseomonas, Flavimonas, and Pseudomonas supports
synonymy of these three genera. Int. J. Syst. Bacteriol., 1997, 47, 249-251. - W Bendig, P J Mayes, D E Eyers, B Holmes, and T T Chin: Flavimonas oryzihabitans (Pseudomonas oryzihabitans; CDC
group Ve-2): an emerging pathogen in peritonitis related to continuous ambulatory peritoneal dialysis? J Clin Microbiol. 1989
January; 27(1): 217–218. - A Vilas Iglesias & J Suárez Martínez: Bronchiectasis Due to Flavimonas Oryzihabitans in an Immunocompetent Patient. Arch
Bronconeumol 2004; 40: 384 – 385.
Acid is produced from L-arabinose, D-xylose, Dglucose, D-fructose, D-mannose,
D-galactose, maltose, trehalose, mannitol, sorbitol & inositol.
Acid is not produced from L-rhamnose, sucrose, lactose, cellobiose, adonitol, salicin & inulin.
Can utilize L-Arabinose, D-xylose, D-ribose, D-glucose, D-fructose, D-mannose, D-galactose, maltose, trehalose, mannitol,
glycerol, acetate, pyruvate, malonate,
DL-P-n-hydroxybutyrate, fumarate, gluconate, 2-ketogluconate, succinate, p-hydroxybenzoate & glutamate.
D-galactose, maltose, trehalose, mannitol, sorbitol & inositol.
Acid is not produced from L-rhamnose, sucrose, lactose, cellobiose, adonitol, salicin & inulin.
Can utilize L-Arabinose, D-xylose, D-ribose, D-glucose, D-fructose, D-mannose, D-galactose, maltose, trehalose, mannitol,
glycerol, acetate, pyruvate, malonate,
DL-P-n-hydroxybutyrate, fumarate, gluconate, 2-ketogluconate, succinate, p-hydroxybenzoate & glutamate.
Sucrose, lactose, raffinose, inulin, starch, phenol, o-hydroxybenzoate & m-hydroxybenzoate are not utilized.
Catalase is produced. Oxidase is not produced. Nitrate is reduced to nitrite (succinate-nitrate medium). Urease is produced. Indole
and hydrogen sulfide are not produced. Starch, Tween 80, esculin, and ONPG are not hydrolyzed. Gelatin is not hydrolyzed. Acid and
alkaline phosphatases, lysine and ornithine decarboxylases, phenylalanine deaminase & arginine dihydrolase are not produced.
Gluconate is not oxidized.
Catalase is produced. Oxidase is not produced. Nitrate is reduced to nitrite (succinate-nitrate medium). Urease is produced. Indole
and hydrogen sulfide are not produced. Starch, Tween 80, esculin, and ONPG are not hydrolyzed. Gelatin is not hydrolyzed. Acid and
alkaline phosphatases, lysine and ornithine decarboxylases, phenylalanine deaminase & arginine dihydrolase are not produced.
Gluconate is not oxidized.
(c) Costin Stoica
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