| Pseudomonas caspiana |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Pseudomonas, Pseudomonas caspiana Busquets et al. 2017.
Genus Pseudomonas, Pseudomonas caspiana Busquets et al. 2017.
Gram-negative rods 0.8-0.9 x 3-4 μm. Motile by a single polar flagellum. Non-spore-
forming.
forming.
Colonies are round, 1-1.5 mm in diameter, flat, translucent and beige coloured, with
regular margins. Fluorescent pigment is produced on King's B medium. Grows at
4-30 ºC, at pH 5-9 and in 0-8% NaCl. Aerobic.
regular margins. Fluorescent pigment is produced on King's B medium. Grows at
4-30 ºC, at pH 5-9 and in 0-8% NaCl. Aerobic.
Isolated from diseased citrus leaves and stems in northern Iran.
Pathogenic to citrus. Potato rot negative. Tobacco hypersensitivity variable.
- Busquets A, Gomila M, Beiki F, Mulet M, Rahimian H, Garcia-Valdes E, Lalucat J. Pseudomonas caspiana sp. nov., a citrus
pathogen in the Pseudomonas syringae phylogenetic group. Syst Appl Microbiol 2017; 40:266-273. - Beiki, F., Busquets, A., Gomila, M., Rahimian, H., Lalucat, J., GarcíaValdés, E. (2016) New Pseudomonas spp. are pathogenic to
citrus. PLoS One. 11(2), e0148796. - Carvalho R, Albu S, Timilsina S, Minsavage GV, Paret ML, Jones JB. Pseudomonas californiensis sp. nov. and Pseudomonas
quasicaspiana sp. nov., isolated from ornamental crops in California. Int J Syst Evol Microbiol 2022; 72:5565. - Tambong JT, Xu R, Gerdis S, Daniels GC, Chabot D, Hubbard K, Harding MW. Corrigendum: Molecular Analysis of Bacterial
Isolates From Necrotic Wheat Leaf Lesions Caused by Xanthomonas translucens, and Description of Three Putative Novel Species,
Sphingomonas albertensis sp. nov., Pseudomonas triticumensis sp. nov. and Pseudomonas foliumensis sp. nov. Front Microbiol
2022; 13:924519. - Lu CH, Han TH, Jiang N, Gai XT, Cao ZH, Zou SY, Chen W, Ma JH, Lin ZL, Li J, et al. Pseudomonas lijiangensis sp. nov., a novel
phytopathogenic bacterium isolated from black spots of tobacco. Int J Syst Evol Microbiol 2022; 72:5591.
Positive results for esculin hydrolysis.
Can assimilate (API 20 NE): L-arabinose, D-mannose, D-mannitol, malate, gluconic acid, capric acid and citric acid.
Can utilize as sole carbon source: L-arginine, D- and L-malic acid, mucic acid, pectin, L-lactate, D-arabitol, L-arabinose,
alpha-D-glucose, alpha-keto glutaric acid, beta-hydroxybutyric acid, bromosuccinic acid, cis-aconitic acid, citric acid, D,L-lactic acid, D-
and L-alanine, D-fructose, D-galactonic acid lactone, D-galactose, D-galacturonic acid, D-gluconic acid, D-glucosaminic acid,
D-glucuronic acid, D,L-alpha-glycerol phosphate, D-mannitol, D-mannose, D-saccharic acid, gamma-aminobutyric acid, glycerol,
inosine, L-alaninamide, L-alanyl-glycine, L-asparagine, L-aspartic acid, L-glutamic Acid, L-leucine, L-proline, L-pyroglutamic acid,
L-serine, malonic acid, methyl pyruvate, propionic acid, quinic acid, succinic acid, Tween 40, Tween 80 and uridine.
Negative results for arginine dihydrolase, acid and alkaline phosphatase, indole production, beta-galactosidase, gelatin hydrolysis,
levan production, nitrate reduction, oxidase, urease and acid production from glucose.
No assimilation of: adipic acid, N-acetyl-D-glucosamine, D-maltose and phenylacetic acid.
No utilization of: D-glucose-6-phosphate, D-fructose-6-phosphate, D-salicin, dextrin, D-turnose, alpha-cyclodextrin,
glucose-1-phosphate, alpha-D-lactose, gamma-hydroxybutyric acid, alpha-ketovaleric acid, 2-aminoethanol, adonitol ,
beta-methyl-D-glucoside, D-cellobiose, dextrin, glucose-6-phosphate, D-melibiose, D-psicose, D-raffinose, D-trehalose, gentiobiose,
glycyl-L-aspartic acid, hydroxy-L-proline, i-erythritol, itaconic acid, lactulose, L-fucose, L-phenylalanine, L-rhamnose, maltose,
m-inositol, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine, phenyethylamine, p-hydroxy phenylacetic acid, putrescine, sebacic
acid, sucrose, thymidine, turanose, xylitol and 2,3-butanediol.
Variable utilization of alpha-hydroxybutyric acid, alpha-ketobutyric acid, acetic acid, D,L-carnitine, D-serine, D-sorbitol, formic acid,
glucuronamide, glycogen, glycyl-L-glutamic acid, L-histidine, L-ornithine, L-threonine, mono-methyl-succinate, succinamic acid and
urocanic acid.
Can assimilate (API 20 NE): L-arabinose, D-mannose, D-mannitol, malate, gluconic acid, capric acid and citric acid.
Can utilize as sole carbon source: L-arginine, D- and L-malic acid, mucic acid, pectin, L-lactate, D-arabitol, L-arabinose,
alpha-D-glucose, alpha-keto glutaric acid, beta-hydroxybutyric acid, bromosuccinic acid, cis-aconitic acid, citric acid, D,L-lactic acid, D-
and L-alanine, D-fructose, D-galactonic acid lactone, D-galactose, D-galacturonic acid, D-gluconic acid, D-glucosaminic acid,
D-glucuronic acid, D,L-alpha-glycerol phosphate, D-mannitol, D-mannose, D-saccharic acid, gamma-aminobutyric acid, glycerol,
inosine, L-alaninamide, L-alanyl-glycine, L-asparagine, L-aspartic acid, L-glutamic Acid, L-leucine, L-proline, L-pyroglutamic acid,
L-serine, malonic acid, methyl pyruvate, propionic acid, quinic acid, succinic acid, Tween 40, Tween 80 and uridine.
Negative results for arginine dihydrolase, acid and alkaline phosphatase, indole production, beta-galactosidase, gelatin hydrolysis,
levan production, nitrate reduction, oxidase, urease and acid production from glucose.
No assimilation of: adipic acid, N-acetyl-D-glucosamine, D-maltose and phenylacetic acid.
No utilization of: D-glucose-6-phosphate, D-fructose-6-phosphate, D-salicin, dextrin, D-turnose, alpha-cyclodextrin,
glucose-1-phosphate, alpha-D-lactose, gamma-hydroxybutyric acid, alpha-ketovaleric acid, 2-aminoethanol, adonitol ,
beta-methyl-D-glucoside, D-cellobiose, dextrin, glucose-6-phosphate, D-melibiose, D-psicose, D-raffinose, D-trehalose, gentiobiose,
glycyl-L-aspartic acid, hydroxy-L-proline, i-erythritol, itaconic acid, lactulose, L-fucose, L-phenylalanine, L-rhamnose, maltose,
m-inositol, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine, phenyethylamine, p-hydroxy phenylacetic acid, putrescine, sebacic
acid, sucrose, thymidine, turanose, xylitol and 2,3-butanediol.
Variable utilization of alpha-hydroxybutyric acid, alpha-ketobutyric acid, acetic acid, D,L-carnitine, D-serine, D-sorbitol, formic acid,
glucuronamide, glycogen, glycyl-L-glutamic acid, L-histidine, L-ornithine, L-threonine, mono-methyl-succinate, succinamic acid and
urocanic acid.
(c) Costin Stoica
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