Characteristics of the seven phylogenetic groups, defined
according to Guinebretiere et al. (2008 and 2010)

 

 

 

 

 

 

 

 

  • Group VII :
    Thermotolerent group corresponding to a new species (B. cytotoxicus), not yet described. Growth temperature range 20-50°C. Strains of this group are
    easily identified by absence of growth in minimal medium without tryptophan and growth at 50°C (according method of Bergey’s Manual). They are relatively
    rare but generally highly cytotoxic.




References :

 

Claus, D. and R.C.W. Berkeley. 1986. Genus Bacillus Cohn 1872, 174AL. In Bergey's manual of systematic
Bacteriology. Sneath P.H.A., Mair N.S., Sharpe M.E. and Holt J.G. (eds). Baltimore,
Md: Williams & Wilkins, pp:1105-1139.

Ehling-Schulz M., N. Vukov, A. Schulz, R. Shaheen, M. Andersson, E. Märtlbauer, and S. Scherer. 2005.
Identification and partial characterization of the nonribosomal peptide synthetase gene responsible for cereulide production in emetic Bacillus cereus.
Applied and Environmental Microbiology 71:105-113.

Francis, K.P., Mayr, R., von Stetten, F., Stewart, G., and S. Scherer. 1998.
Discrimination of psychrotrophic and mesophilic strains of the Bacillus cereus group by PCR targeting of major cold shock protein genes.
Appl. Environ. Microbiol. 64: 3525-3529.

Guinebretière M.H., F. L. Thompson, A. Sorokin, P. Normand, P. Dawyndt, M. Ehling-Schulz, B. Svensson, V. Sanchis, C. Nguyen-The, M. Heyndrickx, and P. De Vos. 2008.
Ecological diversification in the Bacillus cereus Group.
Environmental Microbiology 10:851-865.

Guinebretière, M.H., P. Velge, O. Couvert, M.L. Debuyser and C. Nguyen-The. 2010.
Ability of Bacillus cereus Group strains to cause food poisoning varies according to phylogenetic affiliation (groups I to VII) rather than species affiliation.
Journal of Clinical Microbiolgy (in press).