Pseudomonas fulva & parafulva
Cultural characteristics
Biochemical characters
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae, Genus Pseudomonas,
- Pseudomonas fulva  Iizuka and Komagata 1963.
- Pseudomonas parafulva Uchino et al. 2002.
Gram-negative, 0.6-0.8 x 1.2-1.8, motile by 1 to 3 polar flagellum, rods with rounded
ends. Endospores are not formed. Granules of poly-beta-hydroxybutyrate are not
accumulated in the cells.
Nonfluorescent, yellowish-brown colonies. Strictly aerobic, optimal growth at 28 ºC,
can grow at 4 ºC, poor growth at 37 ºC, no growth at 41 ºC. Media: Nutritive agar,
Trypticase Soy Agar, King’s medium B agar, Pseudomonas agar P, Glutamate agar.
Isolated from rice and other plants (cereals). One isolate from human cerebrospinal fluid.
One report of meningitis in humans caused by Pseudomonas fulva.
  1. Iizuka H. & Komagata K.: New species of Pseudomonas belonged to fluorescent group (Studies on the microorganisms of cereal
    grains. Part V). Journal of the Agricultural Chemical Society of Japan, 1963, 37, 137-141.
  2. Masataka Uchino, Osamu Shida, Tai Uchimura & Kazuo Komagata: Recharacterization of Pseudomonas fulva Iizuka and
    Komagata 1963, and proposals of Pseudomonas parafulva sp. nov. and Pseudomonas cremoricolorata sp. nov. J. Gen. Appl.
    Microbiol., 47, 247–261 (2001).
  3. Marisa N. Almuzara, Miryam Vazquez, Naoto Tanaka, Marisa Turco, Maria S. Ramirez, Eduardo L. Lopez, Fernando Pasteran,
    Melina Rapoport, Adriana Procopio & Carlos A. Vay: First Case of Human Infection Due to Pseudomonas fulva, an Environmental
    Bacterium Isolated from Cerebrospinal Fluid. Journal of Clinical Microbiology, February 2010, p. 660-664, Vol. 48, No. 2.
Arginine dihydrolase, catalase and oxidase are produced.
Acid is produced from glucose.
Can utilize: D-glucose, D-ribose, L-arabinose, D-fructose, gluconate, acetate, propionate, caprate, isovalerate, succinate, fumarate,
itaconate, mucate, glycerate, L-lactate, D-malate, citrate, propylene glycol, inosine, glycine, beta-alanine, L-valine, L-leucine,
L-isoleucine, L-serine, L-lysine, L-ornithine, mannose and ethanol.

Acid is not produced from glycerol, xylose, sucrose, lactose and starch. Nitrates not reduced, H
2S is not produced, starch is not
No utilization of: D-arabinose, D-xylose, D-galactose, L-rhamnose, L-fucose, sucrose, maltose, cellobiose, trehalose,
alpha-D-melibiose, lactose, raffinose, starch, inulin, adonitol, D-arabitol, L-arabitol, D-xylitol, sorbitol, mannitol, inositol,
5-keto-D-gluconate, glucosamine, malonate, adipate, azelate, sebacate, citraconate, glycolate, hydroxybutyrate, tartrate,
DL-2-aminobutyrate, PHB, n-butanol, geraniol, phenol, benzoate, salicylate, m-hydroxybenzoate,  protocatechuate, gentisate,
mandelate, xylene, p-aminobenzoate, naphthalene, taurocholate, testosterone, D-aspartate, tryptophan, DL-norvaline, creatine,
anthranilate, hippurate, pantothenate, glutathione, acetamide, tryptamine, meso-erythritol and benzylamine.

Variable results for utilization of: isobutyrate, D-galactonolactone, isobutanol, 1-hexanol, benzylformate, phenyl acetate, L-threonine,
L-phenylalanine, L-tyrosine, L-histidine, amylamine and dodecane.

P. fulva can be differentiated from P. parafulva by the assimilation of Tween 80, levulinate, itaconate, L-citrulline & nicotinate and  
non-assimilation of  p-hydroxybenzoate, butyrate and valerate.
(c) Costin Stoica
Culture media
Biochemical tests
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