| Halopseudomonas phragmitis |
Description is based mostly on API 20NE, API ZYM and Biolog GN2 results.
Positive results for catalase, lipase, leucine arylamidase, naphthol-AS-BI-phosphohydrolase, nitrate reduction and oxidase.
Can utilize as sole carbon source: capric acid, malic acid and trisodium citrate.
Can utilize in Biolog GN2 tests: glycogen, Tween 40 and 80, pyruvic acid methyl ester, succinic acid monomethyl ester, acetic acid,
cisaconitic acid, citric acid, formic acid, alpha-, beta- and gamma-hydroxybutyric acid, alpha-ketobutyric acid, DL-lactic acid, propionic
acid, sebacic acid, succinic acid, bromosuccinic acid, L-alaninamide, D- and L-alanine, L-asparagine, L-aspartic acid, L-glutamic
acid, L-histidine, L-proline, L-leucine (weak), gamma-aminobutyric acid, urocanic acid and putrescine (negative for other tests).
Negative results for acid and alkaline phosphatase, arginine dihydrolase, aesculin hydrolysis, esterase, gelatin hydrolysis,
denitrification to N2, indole production, urease and glucose fermentation.
No utilization of: D-glucose, L-arabinose, D-mannose, D-mannitol, N-acetylglucosamine, maltose, gluconate and phenylacetic acid.
No utilization in Biolog GN2: dextrin, L-arabinose, alpha-D-glucose, lactulose, D-galacturonic acid, itaconic acid, alpha-ketoglutaric
acid, D- and L-serine, thymidine and glucose-6-phosphate.
Positive results for catalase, lipase, leucine arylamidase, naphthol-AS-BI-phosphohydrolase, nitrate reduction and oxidase.
Can utilize as sole carbon source: capric acid, malic acid and trisodium citrate.
Can utilize in Biolog GN2 tests: glycogen, Tween 40 and 80, pyruvic acid methyl ester, succinic acid monomethyl ester, acetic acid,
cisaconitic acid, citric acid, formic acid, alpha-, beta- and gamma-hydroxybutyric acid, alpha-ketobutyric acid, DL-lactic acid, propionic
acid, sebacic acid, succinic acid, bromosuccinic acid, L-alaninamide, D- and L-alanine, L-asparagine, L-aspartic acid, L-glutamic
acid, L-histidine, L-proline, L-leucine (weak), gamma-aminobutyric acid, urocanic acid and putrescine (negative for other tests).
Negative results for acid and alkaline phosphatase, arginine dihydrolase, aesculin hydrolysis, esterase, gelatin hydrolysis,
denitrification to N2, indole production, urease and glucose fermentation.
No utilization of: D-glucose, L-arabinose, D-mannose, D-mannitol, N-acetylglucosamine, maltose, gluconate and phenylacetic acid.
No utilization in Biolog GN2: dextrin, L-arabinose, alpha-D-glucose, lactulose, D-galacturonic acid, itaconic acid, alpha-ketoglutaric
acid, D- and L-serine, thymidine and glucose-6-phosphate.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Halopseudomonas, Halopseudomonas phragmitis (Li et al. 2020) Lalucat et al. 2022.
Synonyms: Pseudomonas phragmitis Li et al. 2020, Neopseudomonas phragmitis (Li et al. 2020) Saati-Santamaria et al. 2021.
Species description is based on a single isolate.
Genus Halopseudomonas, Halopseudomonas phragmitis (Li et al. 2020) Lalucat et al. 2022.
Synonyms: Pseudomonas phragmitis Li et al. 2020, Neopseudomonas phragmitis (Li et al. 2020) Saati-Santamaria et al. 2021.
Species description is based on a single isolate.
Gram-negative rods, 1.0-2.5 x 0.3-0.5 µm. Motile by means of a single polar flagellum.
Non-spore-forming.
Non-spore-forming.
Colonies on LB are smooth, circular and creamy yellow. Growth occurs at 10-41 ºC,
pH 6-10 and in 0-10% (w/v) NaCl. Neither pyocyanin nor fluorescent pigment is
produced on King A or King B agar.
pH 6-10 and in 0-10% (w/v) NaCl. Neither pyocyanin nor fluorescent pigment is
produced on King A or King B agar.
Isolated from petroleum-polluted river sediment, Huangdao, Shandong Province, China.
Undetermined.
- Li J, Wang LH, Xiang FG, Ding WL, Xi LJ, Wang MQ, Xiao ZJ, Liu JG. Pseudomonas phragmitis sp. nov., isolated from petroleum
polluted river sediment. Int J Syst Evol Microbiol 2020; 70:364-372.
(c) Costin Stoica
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