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Table 3 Occurrence of ces genes in B. cereus group members tested by hybridization assays. Several probes targeting all CDSs of the ces operon and CDSs from flanking regions (see Table 4) were used to test the distribution of ces genes in the B. cereus group.

From: Cereulide synthetase gene cluster from emetic Bacillus cereus: Structure and location on a mega virulence plasmid related to Bacillus anthracis toxin plasmid pXO1

Strainb Subtypea cesH cesP cesT cesA1 cesA2 cesB1 cesB2 cesC
B. cereus          
F4810/72 E xc x x x x x x x
MHI 1305 E x x x x x x x x
UHDAM IH41385 E x x x x x x x x
NVH 0075-95 EL - - - - - - - (x)
NVH 1519-00 EL - - - - - - - -
INRA C24 EL - - - - - - - -
F3003/73 EL - - - - - - - -
F4429/71 EL - - - - - - - -
NVH 200 EL (x) - - - - - - -
RIVM-BC-0063 EL - - - - - - - -
ATCC 10987 EL - - - - - - - -
WSBC 10892 EL - - - - - - - -
WSBC 10028 NE - - - - - - (x) (x)
WSBC 10035 NE - - - - - - - -
ATCC 14579T NE        -  
B. thuringiensis          
WS 2620 NE - - - - - - - -
WS 2621 NE - - - - - - - -
WS 2632 NE - - - - - - - -
WSBC 28001 NE - - - - - - - -
WSBC 28002 NE - - - - - - - -
WSBC 28022 NE - - - - - -   -
WSBC 28023 NE - - - - - -   -
WSBC 28024 NE - - - - - -   -
B. mycoides          
WSBC 10256 NE - - - - - - - -
WSBC 10257 NE - - - - - -   -
WSBC 10258 NE - - - - - -   -
WSBC 10276 NE - - - - - -   -
WSBC 10278 NE - - - - - -   -
WSBC 10292 NE - - - - - -   -
WSBC 10293 NE - - - - - - - -
WSBC 10360 NE - - - - - - - -
B. weihenstephanensis          
WSBC 10001 NE - - - - - -   -
WSBC 10045 NE - - - - - -   -
WSBC 10202 NE - - - - - -   -
WSBC 10204T NE - - (x) - - - - -
WSBC 10212 NE - - - - - -   -
WSBC 10296 NE - - - - - -   -
  1. a) B. cereus group members are classified as emetic (E), emetic-like (EL) and non-emetic (NE) according to [36]. b) for strain designation and details on strains tested see additional file Table S1; c) X hybridization observed; (X) weak hybridization signal; – no hybridization signal.