Positive results for oxidase, catalase and lipase (Tween 80), utilization of acetic acid,
cis-aconitic acid, L-alaninamide, D-alanine, L-alanine, L-arabinose, bromosuccinic
acid, citric acid, glycogen, alpha-hydroxybutyric acid, beta-hydroxybutyric acid, alpha-
ketovaleric acid, DL-lactic acid, L-proline, methyl pyruvate, propionic acid, quinic acid,
sebacic acid, D-serine, monomethyl succinate, succinic acid, Tween 40 & Tween 80, capric acid, trisodium citrate, xylose & ethanol.
Negative results for methyl red reaction, H2S, indole production, acetoin production, urease, amylase, gelatinase, beta-glucosidase,
beta-galactosidase, arginine dihydrolase, lysine decarboxylase, ornithine decarboxylase, tryptophan deaminase, glucose
fermentation, utilization of alpha-cyclodextrin, dextrin, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine, adonitol, D-arabitol,
D-cellobiose, i-erythritol, D-fructose, L-fucose, D-galactose, gentiobiose, alpha-D-glucose, m-inositol, alpha-D-Lactose, lactulose,
maltose, D-mannitol, D-mannose, D-melibiose, beta-methyl-D-glucoside, D-psicose, D-raffinose, L-thamnose, D-sorbitol, sucrose,
D-trehalose, turanose, xylitol, pyruvic acid, succinic acid, formic acid, D-galactonic, acid lactone, D-galacturonic acid, D-gluconic acid,
D-glucosaminic acid, D-glucuronic acid, gamma-hydroxybutyric acid, p-hydroxy phenylacetic acid, itaconic acid, alpha-ketobutyric acid,
alpha-ketoglutaric acid, malonic acid, quinic acid, D-saccharic acid, sebacic acid, succinamic acid, glucuronamide, L-alanylglycine,
L-asparagine, L-aspartic acid, L-glutamic acid, glycyl-L-aspartic acid, glycyl-L-glutamic acid, L-histidine, hydroxy-L-proline, L-leucine,
L-ornithine, L-phenylalanine, L-pyroglutamic acid, L-serine, L-threonine, D,L-carnitine, gamma-aminobutyric acid, urocanic, acid,
inosine, uridine, thymidine, phenyethylamine, putrescine, 2-aminoethanol, 2,3-butanediol, glycerol, D,L-alpha-glycerol phosphate,
alpha-D-glucose-1-phosphate & D-glucose-6-phosphate.
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae, Genus Pseudomonas,
Pseudomonas xiamenensis Lai and Shao 2008.
Gram-negative rods, 0.6-0.8 μm wide x 1.1-1.3 μm long, motile by means of a single
On Luria Bertani agar plates, produces smooth white colonies with regular edges, 1-2
mm in diameter after 72 hours incubation at 30 ºC, non-pigmented and slightly raised
in the centre. Moderately halophilic, growing in 0–8% NaCl broth (optimum 1-3 %).
Grows at 10-45 ºC (optimum 25-30 ºC), but not at 4 or 50 ºC.
Isolated from activated sludge samples collected in China.
Resistant to cefoperazone, cephalexin, cephazolin, clindamycin, furazolidone, lincomycin, metronidazole, oxacillin, penicillin G,
piperacillin, sulfamethoxazole & vancomycin.
- Lai, Qiliang, Shao, Zongze. Pseudomonas xiamenensis sp. nov., a denitrifying bacterium isolated from activated sludge. Int J Syst
Evol Microbiol 2008 58: 1911-1915.
(c) Costin Stoica