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Species/Subspecies: Bacillus cereus
Etymology: Genus name: small rod
Species epithet: wax colored
Significance:  [Very important]   
Type Strain: ATCC 14579 = CCUG 7414 = NCTC 2599
Macromorphology (smell):
Bacillus cereus Bacillus cereus 
Large, opaque, grey-yellow, granular, flat colonies (diameter 5-10 mm). Most strains produce a clear broad zone of hemolysis on blood agar.
Bacillus cereusBacillus cereus
Large (1 x 5-10 µm) motile rods, centrally located endospores can sometimes be seen as uncolored regions after Gram staining of cells from older cultures.
Gram +/Gram -:
Fig. 21:5. Gram staining of Bacillus cereus, strain VB 002/09. 
G+ (Cells from older cultures can appear as G - because the cell wall degenerates)
Metabolism: Facultatively anaerobic
Other Enzymes: Lecithinase +
Fermentation of carbohydrates:
Other carbohydrates: Fructose +, D-mannose -, ribose +, xylitol -.
Spec. Char.:
Special Media:
Bacillus cereus 
MYP agar is often used for confirmation of suspected B. cereus colonies from food samples.
Hosts: Humans, (cattle)
Disease (Swedish):Matförgiftning. Har i enstaka fall isolerats från nötkreatur med mastit.
Disease (English):Food poisoning, can occasionally be isolated from cattle with mastitis.
Clinical Picture:
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_006274 E33L 5 300 915  

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AE016877 (T) komplett 13 

 Bacillus cereus
About 250 species have been described within the genus Bacillus. B. cereus is very closely related to Bacillus anthracis and Bacillus thuringiensis.
Comment:Spore forming.
Reference(s): No. 111

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Swedish University of Agricultural Sciences