| Microbacterium lacticum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Micrococcales, Family Microbacteriaceae, Genus Microbacterium, Microbacterium
lacticum Orla-Jensen 1919.
lacticum Orla-Jensen 1919.
Gram-positive, short, irregularly rods, arranged singly or in pairs, in angles, forming V
shapes. Non-motile. Non-spore-forming.
shapes. Non-motile. Non-spore-forming.
Colonies are convex with entire edges, opaque, moist, 1-3 mm in diameter; colour
varies from gray-white to yellow. Aerobic growth. Optimum growth temperature is 30 ºC.
Cannot grow at 37 ºC.
varies from gray-white to yellow. Aerobic growth. Optimum growth temperature is 30 ºC.
Cannot grow at 37 ºC.
Isolated from milk, dairy products and from dairy equipment.
Undetermined.
- Suzuki K.I. and Hamada M., 2012. Genus I. Microbacterium Orla-Jensen 1919, emend. Takeuchi and Hatano 1998. In: Goodfellow
M., Kampfer P. et al. (Editors), Bergey’s Manual of Systematic Bacteriology, Second Edition, Vol. Five, The Actinobacteria, Part A, p.
814-852. - Goodfellow, M., T.M. Embley and B. Austin. 1985. Numerical taxonomy and emended description of Renibacterium salmoninarum.
J. Gen. Microbiol. 131: 2739-2752.
Positive results for acid phosphatase, catalase, esterase C8, beta-galactosidase, nitrate reduction, starch hydrolysis, valine
arylamidase, acid production from: N-acetylglucosamine, arbutin, cellobiose, dextrin, esculin, fructose, galactose, glucose, lactose,
maltose, mannitol, mannose, salicin, and starch.
Negative results for alkaline phosphatase, arginine decarboxylase, chymotrypsin, cystine arylamidase, esterase C4, alpha-fucosidase,
alpha-galactosidase, gelatin hydrolysis, alpha- and beta-glucosidase,beta-glucuronidase, H2S production, alpha-mannosidase,
trypsin,Tweens 20, 40, 60, 80 hydrolysis, tyrosine, urease, acid production from: adonitol, L-arabinose, dulcitol, erythritol, glycerol,
inositol, inulin, raffinose, rhamnose, ribose, sorbitol, sorbose, sucrose, trehalose, and xylose.
Variable results for oxidase and casein hydrolysis.
arylamidase, acid production from: N-acetylglucosamine, arbutin, cellobiose, dextrin, esculin, fructose, galactose, glucose, lactose,
maltose, mannitol, mannose, salicin, and starch.
Negative results for alkaline phosphatase, arginine decarboxylase, chymotrypsin, cystine arylamidase, esterase C4, alpha-fucosidase,
alpha-galactosidase, gelatin hydrolysis, alpha- and beta-glucosidase,beta-glucuronidase, H2S production, alpha-mannosidase,
trypsin,Tweens 20, 40, 60, 80 hydrolysis, tyrosine, urease, acid production from: adonitol, L-arabinose, dulcitol, erythritol, glycerol,
inositol, inulin, raffinose, rhamnose, ribose, sorbitol, sorbose, sucrose, trehalose, and xylose.
Variable results for oxidase and casein hydrolysis.
(c) Costin Stoica
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