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Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus horti  Yumoto, Yamazaki, Sawabe,
Nakano, Kawasaki, Ezura and Shinano 1998.
Description is based on a single isolate.
Gram-positive (Gram-variable in old cultures), nonmotile rods, 1.0-1.3 x 2.5-4.0 µm
centrally / terminally, ellipsoidal endospores  in swollen sporangia.
Colonies are circular to slightly irregular, light yellow, smooth , 2-4 mm in diameter
after 3 days at 30 ºC on marine agar. Aerobic. Growth occurs at pH 5 to 7 (optimum
pH 6-7) and at 10-40 ºC (optimum temperature 30 ºC). Grow in nutrient broth with
2-19% NaCl added (optimum 2-5% NaCl). Allantoin and urate are not required for
growth. NaCl is required for growth..
Isolated from sea water of the East 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. Yoon J.-H., Kim I.-G., Kang K. H., Oh T.-K. and Park Y.-H., 2004. Bacillus hwajinpoensis sp. nov. and an unnamed Bacillus
    genomospecies, novel members of Bacillus rRNA group 6 isolated from sea water of the East Sea and the Yellow Sea in Korea.
    IJSEM 54, 803-808.
Positive results for hydrolysis of gelatin, catalase, nitrate reduction, hydrolysis of esculin, hydrolysis of casein, hydrolysis of starch,
hydrolysis of Tween 20, 40, 60 & 80,  acid production from: D-glucose, D-mannitol, D-mannose, cellobiose, fructose, galactose,
maltose, melibiose, raffinose, ribose, sucrose & trehalose.

Negative results for hydrolysis of urea, oxidase, degradation of tyrosine, acid production from: L-arabinose, adonitol, D-xylose,
meso-inositol, lactose, melezitose, rhamnose & sorbitol.
(c) Costin Stoica
Bacillus hwajinpoensis
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