Pseudomonas cedrina
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae, Genus Pseudomonas,
-
Pseudomonas cedrina subsp. cedrina Dabboussi et al. 2002 emend. Behrendt et al. 2009.
- Pseudomonas cedrina subsp. fulgida  Behrendt et al. 2009.

Historical synonym:
Pseudomonas cedrella  Dabboussi et al. 2002.
Gram-negative rods, 0.8 x 2.5-4.2 μm, motile by means of one or two polar flagella.
Colonies on nutrient agar are circular, smooth, and non-pigmented. Fluorescent
pigment is produced on King B agar. No hemolysis on blood agar.
Optimum
temperature 21-28 ºC. Growth occurs at 4 ºC, but not at 41ºC. Growth media: King B
agar, Trypticase Soy Broth Agar, Nutrient Agar, Caso Agar. No growth occurs with 5%
NaCl in the medium.
Aerobic.
Isolated from spring water in Lebanon (subsp. cedrina) & from phyllosphere of grasses (subsp. fulgida).
Unknown.
  1. Fouad Dabboussi, Monzer Hamze, Malika Elomari, Sophie Verhille, Nader Baida, Daniel Izard,  and Henri Leclerc. Taxonomic
    study of bacteria isolated from Lebanese spring waters: proposal for Pseudomonas cedrella sp. nov. and P. orientalis sp. nov.
    Research in Microbiology Volume 150, Issue 5, June 1999, Pages 303-316.
  2. Behrendt (U.), Schumann (P.), Meyer (J.M.) and Ulrich (A.): Pseudomonas cedrina subsp. fulgida subsp. nov., a fluorescent
    bacterium isolated from the phyllosphere of grasses; emended description of Pseudomonas cedrina and description of
    Pseudomonas cedrina subsp. cedrina subsp. nov. Int. J. Syst. Evol. Microbiol., 2009, 59, 1331-1335.
  3. George M. Garrity, Julia A. Bell & Timothy Lilburn: Order IX Pseudomonadales Orla-Jensen 1921 In: Bergey’s Manual of
    Systematic Bacteriology, Second edition,Vol two, part B, George M. Garrity (Editor-in-Chief), 2005, pp. 323-442.
Positive results for catalase & oxidase. Levan is produced from sucrose. Various carbon sources, particularly carbohydrates and
derivatives, and various enzymatic activities are reported. Can utilize: N-acetyl-D-glucosamine, L-arabinose, D-arabitol, caprate,
citrate, D-fructose, D-galactose, alpha-D-glucose,
gluconate, D-mannitol, D-mannose, methyl pyruvate, monomethyl succinate, acetic
acid, cis-aconitic acid, citric acid, formic acid, D-galactonic acid lactone, D-galacturonic acid, D-gluconic acid, D-glucosaminic acid, D-
glucuronic acid, alpha-hydroxybutyric acid, beta-hydroxybutyric acid, alpha-ketobutyric acid, alpha-ketoglutaric acid, DL-lactic acid,
malate, malonic acid, propionic acid, D-saccharic acid, succinic acid, bromosuccinic acid, succinamic acid, glucuronamide, D-
alanine, L-alanine, L-alanyl glycine, L-asparagine, L-aspartic acid, L-glutamic acid, L-histidine, hydroxy L-proline, L-leucine, L-proline,
L-pyroglutamic acid, L-serine,
L-threonine, gamma-aminobutyric acid, urocanic acid, inosine, 2-aminoethanol & glycerol.

Negative results for DNase,
esculin hydrolysis, beta-galactosidase, indole production, tyrosine hydrolysis & urease.
No utilization of: adipate, alpha-cyclodextrin, dextrin, glycogen, Tweens 40 or 80, N-acetyl-D-galactosamine, cellobiose, L-fucose,
gentiobiose, a
lpha-lactose, alpha-D-lactose, lactulose, maltose, D-melibiose, methyl beta-D-glucoside, phenylacetate, D-raffinose,
turanose, gamma-hydroxybutyric acid, itaconic acid, sebacic acid, glycyl L-aspartic acid, L-phenylalanine, DL-carnitine, thymidine,
phenylethylamine, 2,3-butanediol, glucose 1-phosphate &
glucose 6-phosphate.

Subspecies differential characters:
(c) Costin Stoica
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Levan formation from
sucrose
Nitrates
reduction
Gelatin
hydrolysis
Arginine
dihydrolase
subsp. cedrina
+
+
+
+
subsp. fulgida
-
-
-
-
Substrate utilization
Adonitol
Alaninamide
i-Erythritol
DL-alpha-Glycerol
phosphate
myo-Inositol
L-Rhamnose
D-Sorbitol
Sucrose
D-Trehalose
Xylitol
subsp. cedrina
+
-
+
-
-
+
+
+
+
+
subsp. fulgida
-
+
-
+
+
-
-
-
-
-