| Kocuria rhizophila |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Micrococcales, Family Micrococcaceae, Genus Kocuria, Kocuria rhizophila
Kovacs et al. 1999.
Note: Tang and Gillevet, propose to reclassify the Micrococcus luteus ATCC 9341 as Kocuria rhizophila. This strain was previously
designated as a quality-control strain in a number of papers and it is also cited as the standard culture in several official methods and
manuals.
Kovacs et al. 1999.
Note: Tang and Gillevet, propose to reclassify the Micrococcus luteus ATCC 9341 as Kocuria rhizophila. This strain was previously
designated as a quality-control strain in a number of papers and it is also cited as the standard culture in several official methods and
manuals.
Gram-positive cocci, 1.0-1.5 μm in diameter, occuring in pairs, tetrads and clusters.
Endospores are not formed. Nonmotile. Nonencapsulated. Not acid-fast.
Endospores are not formed. Nonmotile. Nonencapsulated. Not acid-fast.
Colonies are 1.5-2.5 mm in diameter, opaque, smooth with irregular edges with
yellow pigmentation. Grows at 30-37 ºC. No growth above 40 ºC. Good growth at
pH 5.7-7.7. Good growth in 10% NaCl media; weak growth in 15% NaCl. Aerobic.
yellow pigmentation. Grows at 30-37 ºC. No growth above 40 ºC. Good growth at
pH 5.7-7.7. Good growth in 10% NaCl media; weak growth in 15% NaCl. Aerobic.
Isolated from the rhizosphere of Typha angustifolia from a floating mat on the Soroksar tributary of the river Danube, Hungary.
Undetermined.
- Hans-Jurgen Busse, 2012. Family I. Micrococcaceae Pribham 1929, 361 AL emend. Stackebrandt, Rainey and Ward-Rainey 1997,
479 in: Bergey’s Manual of Systematic Bacteriology, second edition, Volume Five The Actinobacteria, Part A, Springer, 571-666. - Kovacs G., Burghardt J., Pradella S., Schumann P., Stackebrandt E. and Marialigeti K.: Kocuria palustris sp. nov. and Kocuria
rhizophila sp. nov., isolated from rhizoplane of the narrow-leaved cattail (Typha angustifolia). Int. J. Syst. Bacteriol., 1999, 49, 167-
173. - Tang J.S. and Gillevet P.M.: Reclassification of ATCC 9341from Micrococcus luteus to Kocuria rhizophila. Int. J. Syst. Evol. Microbiol.,
2003, 53, 995-997. - Braun MS, Wang E, Zimmermann S, Wagner H, Wink M. Kocuria tytonis sp. nov., isolated from the uropygial gland of an American
barn owl (Tyto furcata). Int J Syst Evol Microbiol 2019; 69:447-451.
Positive results for alkaline phosphatae, catalase, gelatinase, H2S production (weak), phosphatase, Tween 80 hydrolysis, growth on
Simmons’ citrate, acid production from D-glucose, D-fructose, D-mannose and saccharose.
Can utilize adonitol, L-arabinose, D-fructose, L-fucose, D-glucose, turanose, xylitol, methyl-pyruvate, glucuronamide, dextrin, glycogen,
Tween 40, Tween 80 and N-acetyl-D-glucosamine.
Negative results for arginine dihydrolase, esculin hydrolysis, indole production, nitrate reduction, oxidase, phenylalanine deaminase,
starch hydrolysis, urease, acid production from L-arabinose, arbutin, galactose, glycerol, beta-gentiobiose, lactose, maltose,
mannitol, melezitose, ribose, sorbitol, salicin, starch, trehalose, D-turanose and D-xylose.
No utilization of cellobiose, D-trehalose, N-acetyl-D-galactosamine, m-inositol, maltose, D-mannitol, D-melibiose, sorbitol, inosine,
glycerol, L-glutamic acid or L-alanine.
Simmons’ citrate, acid production from D-glucose, D-fructose, D-mannose and saccharose.
Can utilize adonitol, L-arabinose, D-fructose, L-fucose, D-glucose, turanose, xylitol, methyl-pyruvate, glucuronamide, dextrin, glycogen,
Tween 40, Tween 80 and N-acetyl-D-glucosamine.
Negative results for arginine dihydrolase, esculin hydrolysis, indole production, nitrate reduction, oxidase, phenylalanine deaminase,
starch hydrolysis, urease, acid production from L-arabinose, arbutin, galactose, glycerol, beta-gentiobiose, lactose, maltose,
mannitol, melezitose, ribose, sorbitol, salicin, starch, trehalose, D-turanose and D-xylose.
No utilization of cellobiose, D-trehalose, N-acetyl-D-galactosamine, m-inositol, maltose, D-mannitol, D-melibiose, sorbitol, inosine,
glycerol, L-glutamic acid or L-alanine.
(c) Costin Stoica
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