Phylum Actinobacteria, Class Actinobacteria, Order Micrococcales, Family Microbacteriaceae, Genus Microbacterium, Microbacterium
maritypicum (ZoBell and Upham 1944) Takeuchi and Hatano 1998.
Historical synonyms: Flavobacterium marinotypicum Breed, 1957.
Gram-positive, short, irregularly rods, arranged singly or in pairs, in angles, forming V
shapes. Motile. Non-spore-forming.
Colonies are convex with entire edges, light-yellow, 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 sea water and marine mud.
- 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,
Positive results for catalase, gelatin hydrolysis, Tweens 20 (weak reaction), 40, 60, 80 hydrolysis, acid production from: glucose &
Negative results for arginine dihydrolase, H2S production, methyl red, starch hydrolysis, Voges-Proskauer test, acid production from: L-
arabinose, galactose, inulin, melezitose, raffinose, rhamnose, ribose, trehalose & xylose.
Weak and variable results for sucrose acidification.
(c) Costin Stoica