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Phylum Actinobacteria, Class Actinobacteria, Order Micrococcales, Family Microbacteriaceae, Genus Microbacterium, Microbacterium  
aurantiacum
Takeuchi and Hatano 1998.
Gram-positive, short, irregularly rods, arranged singly or in pairs, in angles, forming V
shapes. Non-motile. Non-spore-forming.
Colonies are convex with entire edges, orange, opaque, moist, 2-4 mm in diameter.
Aerobic growth. Can grow in 2-5% NaCl media; weak growth in 6.5% NaCl. Optimum
growth temperature is 28 ºC. Can grow at 37 ºC.
Isolated from sewage.
Undetermined.
  1. Takeuchi M. and Hatano K., 1998. Proposal of six new species in the genus Microbacterium and transfer of Flavobacterium
    marinotypicum ZoBell and Upham to the genus Microbacterium as Microbacterium maritypicum comb. nov. Int J Syst Bacteriol 48,
    973-982.
Positive results for catalase, H2S production, starch hydrolysis, Tweens 20 (weak
reaction), 40, 60, 80 hydrolysis, acid production from: glucose, mannose & sucrose.

Negative results for arginine dihydrolase, gelatin hydrolysis, methyl red, Voges-Proskauer test, acid production from: L-arabinose,
galactose, inulin, melezitose, raffinose, rhamnose, ribose, trehalose & xylose.

Variable results for xylose acidification.
Microbacterium aurantiacum
(c) Costin Stoica
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