| Arthrobacter psychrolactophilus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Micrococcales, Family Micrococcaceae, Genus Arthrobacter, Arthrobacter
psychrolactophilus Loveland-Curtze et al. 2000.
psychrolactophilus Loveland-Curtze et al. 2000.
Gram-positive cells showing a rod-coccus cycle, 0.5-1.4 µm, easily decolorized.
Non-motile. Non-acid-fast. Non-spore-forming.
Non-motile. Non-acid-fast. Non-spore-forming.
Colonies on trypticase soy agar without dextrose are yellow; degree of pigmentation
varies with growth temperature and age of the cells. Growth occurs at 0-30 ºC. Grows
in the presence of 5% (w/v) NaCl. The pH range for growth is 5.7-9.1. Obligately
aerobic. No vitamin requirements; grows in mineral salts medium with ammonium
chloride as sole source of nitrogen.
varies with growth temperature and age of the cells. Growth occurs at 0-30 ºC. Grows
in the presence of 5% (w/v) NaCl. The pH range for growth is 5.7-9.1. Obligately
aerobic. No vitamin requirements; grows in mineral salts medium with ammonium
chloride as sole source of nitrogen.
Isolated from whey-enriched farm soil.
Undetermined.
- Loveland-Curtze J, Sheridan PP, Gutshall KR, Brenchley JE. Biochemical and phylogenetic analyses of psychrophilic isolates
belonging to the Arthrobacter subgroup and description of Arthrobacter psychrolactophilus, sp. nov. Arch Microbiol 1999; 171:355-
363. - Tvrzova L, Schumann P, Sproer C, Sedlacek I, Verbarg S, Kroppenstedt RM, Pacova Z. Polyphasic taxonomic study of strain CCM
2783 resulting in the description of Arthrobacter stackebrandtii sp. nov. Int J Syst Evol Microbiol 2005; 55:805-808. - Margesin R, Schumann P, Zhang DC, Redzic M, Zhou YG, Liu HC, Schinner F. Arthrobacter cryoconiti sp. nov., a psychrophilic
bacterium isolated from alpine glacier cryoconite. Int J Syst Evol Microbiol 2012; 62:397-402.
Positive results for acid phosphatase, catalase, esculin hydrolysis, esterase (C4), esterase lipase (C8), alpha- and beta-glucosidase,
beta-glucuronidase, alpha- and beta-galactosidase, gelatin hydrolysis, and starch hydrolysis.
Can utilize as sole carbon sources lactose, sorbitol, melibiose, cellobiose, glycerol, maltose, raffinose, xylose, galactose,
sucrose, D-glucose, D-mannose, D-mannitol, N-acetylglucosamine, maltose, malic acid and trisodium citrate.
Negative results for alkaline phosphatase (positive in Margesin's study), arginine dihydrolase, DNase, indole production, H2S
production, lipase (C14), nitrate reduction, N-acetyl-betaglucosaminidase, lysine decarboxylase, ornithine decarboxylase,oxidase,
urease, acid production, from amygdalin, L-arabinose, D-glucose, inositol, D-mannitol, L-rhamnose, melibiose, D-sorbitol, and
sucrose.
No utilization of alpha-cyclodextrin, L-arabinose, L-fucose, methyl alpha-D-galactoside, stachyose, L-asparagine, uridine, Tween 40
and 80, capric acid and adipic acid.
beta-glucuronidase, alpha- and beta-galactosidase, gelatin hydrolysis, and starch hydrolysis.
Can utilize as sole carbon sources lactose, sorbitol, melibiose, cellobiose, glycerol, maltose, raffinose, xylose, galactose,
sucrose, D-glucose, D-mannose, D-mannitol, N-acetylglucosamine, maltose, malic acid and trisodium citrate.
Negative results for alkaline phosphatase (positive in Margesin's study), arginine dihydrolase, DNase, indole production, H2S
production, lipase (C14), nitrate reduction, N-acetyl-betaglucosaminidase, lysine decarboxylase, ornithine decarboxylase,oxidase,
urease, acid production, from amygdalin, L-arabinose, D-glucose, inositol, D-mannitol, L-rhamnose, melibiose, D-sorbitol, and
sucrose.
No utilization of alpha-cyclodextrin, L-arabinose, L-fucose, methyl alpha-D-galactoside, stachyose, L-asparagine, uridine, Tween 40
and 80, capric acid and adipic acid.
(c) Costin Stoica
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