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Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus marisflavi Yoon, Kim, Kang, Oh and
Park  2003. Description is based on a single isolate.
Gram-positive rods  (Gram-variable in older cultures), 0.6-0.8 x 1.5-3.5 µm, motile by a
single polar flagellum. Form ellipsoidal, central / subterminal endospores  in swollen
sporangia.
Colonies are  pale yellow, smooth, circular to slightly irregular, slightly raised, 2-4 mm
in diameter after 3 days at 30 ºC on marine agar. Aerobic. Growth is observed at pH
4-9 (optimum pH 6-8); temperature  10-45 ºC (optimum 30-37 ºC).
NaCl, allantoin or urate are not required for growth. Grow in 2-15% NaCl medium.
Isolated from sea water of a tidal flat of the Yellow Sea in Korea.
Not determined.
  1. N.A. Logan and P. De Vos, 2009. Genus I.  Bacillus  Cohn 1872. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W. Ludwig, F.
    A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes, Springer, 21-127.
  2. J.H. Yoon, I.G. Kim, K. H. Kang, T.K. Oh and Y.H. Park, 2003. Bacillus marisflavi sp. nov. and Bacillus aquimaris sp. nov., isolated
    from sea water of a tidal flat of the Yellow Sea in Korea. IJSEM 53, no.5, 1297-1303.
Positive results for catalase, hydrolysis of esculin, hydrolysis of casein, acid production
from: arbutin, cellobiose, fructose, D-glucose, glycerol, galactose (weak), beta-gentibiose, D-mannitol, D-mannose, maltose,
melibiose, raffinose (weak), ribose, salicin, sucrose, trehalose, xylitol, L- or D-xylose.

Negative results for degradation of tyrosine, hydrolysis of urea, oxidase, hydrolysis of starch, hydrolysis of Tween 80, tryptophan
deaminase, acid production from: amygdalin, L- or D-arabinose,  L- or D-arabitol, N-acetil-D-glucosamine, adonitol, dulcitol, erythritol,
L- or D-fucose, glycogen, gluconate , meso-inositol , inulin 2- or 5-ketogluconate,  lactose, lyxose,  melezitose, methyl beta-xyloside,
rhamnose, sorbitol , sorbose & starch.
(c) Costin Stoica
Bacillus marisflavi
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