| Halopseudomonas pelagia |
Positive results for acid and alkaline phosphatases, amylase, catalase, esterase (C4), esterase lipase (C8), lipase (C14) leucine
arylamidase, nitrate reduction, oxidase Tweens 20, 40 and 60 hydrolysis.
Can utilize: D-arabitol, mannitol, sorbitol, trehalose, L-alanine, lactic acid, D-glucose, peptone and pyruvate.
Negative results for arginine dihydrolase, aesculin hydrolysis, cystine arylamidase, alpha-chymotrypsin, alpha-fucosidase,
gelatinase, alpha- and beta-galactosidases, alpha- and beta-glucosidases, beta-glucuronidase, glucose fermentation, indole
production, alpha-mannosidase, methyl red test, N-acetyl-beta-glucosaminidase, Tween 80 hydrolysis, trypsin, urease, valine
arylamidase and Voges–Proskauer test.
No utilization of: gluconic acid, L-serine, adipate, caprate, propionic acid, acetate, N-acetyl-D-glucosamine, L-arginine, aspartic acid,
ascorbate, ethanol, citrate, D-fructose, L-glutamate, glycerol, lactose, D-mannose, D-ribose and succinate.
Variable results for naphthol-AS-BI-phosphohydrolase activity, utilization of inositol, D-galactose and sucrose.
arylamidase, nitrate reduction, oxidase Tweens 20, 40 and 60 hydrolysis.
Can utilize: D-arabitol, mannitol, sorbitol, trehalose, L-alanine, lactic acid, D-glucose, peptone and pyruvate.
Negative results for arginine dihydrolase, aesculin hydrolysis, cystine arylamidase, alpha-chymotrypsin, alpha-fucosidase,
gelatinase, alpha- and beta-galactosidases, alpha- and beta-glucosidases, beta-glucuronidase, glucose fermentation, indole
production, alpha-mannosidase, methyl red test, N-acetyl-beta-glucosaminidase, Tween 80 hydrolysis, trypsin, urease, valine
arylamidase and Voges–Proskauer test.
No utilization of: gluconic acid, L-serine, adipate, caprate, propionic acid, acetate, N-acetyl-D-glucosamine, L-arginine, aspartic acid,
ascorbate, ethanol, citrate, D-fructose, L-glutamate, glycerol, lactose, D-mannose, D-ribose and succinate.
Variable results for naphthol-AS-BI-phosphohydrolase activity, utilization of inositol, D-galactose and sucrose.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Halopseudomonas, Halopseudomonas pelagia (Hwang et al. 2009) Rudra and Gupta 2021.
Synonyms: Pseudomonas pelagia Hwang et al. 2009, Neopseudomonas pelagia (Hwang et al. 2009) Saati-Santamaría et al. 2021.
Genus Halopseudomonas, Halopseudomonas pelagia (Hwang et al. 2009) Rudra and Gupta 2021.
Synonyms: Pseudomonas pelagia Hwang et al. 2009, Neopseudomonas pelagia (Hwang et al. 2009) Saati-Santamaría et al. 2021.
Gram-negative, straight rods, 0.4-0.5 x 1.8-2.0 um. Motile by a single polar flagellum.
Non-spore-forming. Poly-beta-hydroxybutyrate granules are not accumulated.
Non-spore-forming. Poly-beta-hydroxybutyrate granules are not accumulated.
After 3 days on LB agar at 25 ºC, colonies are circular, convex and white in colour, and
about 1.5-2 mm in diameter. Cells also grow on MA and tryptic soy agar (TSA; Difco).
Growth occurs at 4-33 ºC (optimum, 25 ºC), at pH 6.5-9.1 (optimum, pH 7.5-8.1) and
in 0.5-8% w/v NaCl (optimum, 1-2 %). No fluorescent pigments are detected. Strictly
aerobic.
about 1.5-2 mm in diameter. Cells also grow on MA and tryptic soy agar (TSA; Difco).
Growth occurs at 4-33 ºC (optimum, 25 ºC), at pH 6.5-9.1 (optimum, pH 7.5-8.1) and
in 0.5-8% w/v NaCl (optimum, 1-2 %). No fluorescent pigments are detected. Strictly
aerobic.
Isolated from a culture of the Antarctic green alga Pyramimonas gelidicola.
Sensitive to: chloramphenicol, gentamicin, kanamycin and polymyxin B. Resistant to ampicillin, cephalexin, erythromycin, mitomycin
C, nalidixic acid, penicillin G, streptomycin, tetracycline and vancomycin.
Sensitive to: chloramphenicol, gentamicin, kanamycin and polymyxin B. Resistant to ampicillin, cephalexin, erythromycin, mitomycin
C, nalidixic acid, penicillin G, streptomycin, tetracycline and vancomycin.
Undetermined.
- Hwang CY, Zhang GI, Kang SH, Kim HJ, Cho BC. Pseudomonas pelagia sp. nov., isolated from a culture of the Antarctic green
alga Pyramimonas gelidicola. Int J Syst Evol Microbiol 2009; 59:3019-3024. - Rudra B, Gupta RS. Phylogenomic and comparative genomic analyses of species of the family Pseudomonadaceae: Proposals
for the genera Halopseudomonas gen. nov. and Atopomonas gen. nov., merger of the genus Oblitimonas with the genus
Thiopseudomonas, and transfer of some misclassified species of the genus Pseudomonas into other genera. Int J Syst Evol
Microbiol 2021; 71:5011. - Pascual J, Lucena T, Ruvira MA, Giordano A, Gambacorta A, Garay E, Arahal DR, Pujalte MJ, Macian MC. Pseudomonas litoralis
sp. nov., isolated from Mediterranean seawater. Int J Syst Evol Microbiol 2012; 62:438-444. - Sun J, Wang W, Ying Y, Zhu X, Liu J, Hao J. Pseudomonas profundi sp. nov., isolated from deep-sea water. Int J Syst Evol
Microbiol 2018; 68:1776-1780. - Zhang XJ, Liu HC, Zhou YG, Wu XL, Nie Y, Li QR, Wang MZ, Zhao L, Cai M, Kang YQ. Pseudomonas Saliphila sp. nov., a Bacterium
Isolated from Oil-Well Production Water in Qinghai Oilfield of China. Curr Microbiol 2020; 77:1924-1931.
(c) Costin Stoica
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