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. 2006 Jul;72(7):5118-21.
doi: 10.1128/AEM.00170-06.

Characterization of emetic Bacillus weihenstephanensis, a new cereulide-producing bacterium

Line Thorsen  1 , Bjarne Munk Hansen, Kristian Fog Nielsen, Niels Bohse Hendriksen, Richard Kerry Phipps, Birgitte Bjørn Budde
Affiliations

Characterization of emetic Bacillus weihenstephanensis, a new cereulide-producing bacterium

Line Thorsen et al. Appl Environ Microbiol. 2006 Jul.

Abstract

Cereulide production has until now been restricted to the species Bacillus cereus. Here we report on two psychrotolerant Bacillus weihenstephanensis strains, MC67 and MC118, that produce cereulide. The strains are atypical with regard to pheno- and genotypic characteristics normally used for identification of emetic B. cereus strains. MC67 and MC118 produced cereulide at temperatures of as low as 8 degrees C.

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Figures

FIG. 1.
FIG. 1.
RAPD_1 profiles of the emetic B. weihenstephanensis strains MC67 and MC118 compared to those of emetic B. cereus strains and nonemetic B. weihenstephanensis strains from a sandy loam on the island Møn in Denmark. Lanes 1 and 2, emetic B. cereus strains F5881 and NS117, respectively; lanes 3 to 5, nonemetic B. weihenstephanensis strains MC73, MC59, and MC8, respectively; lanes 6 and 7, emetic B. weihenstephanensis strains MC67 and MC118, respectively; lanes 8 to 12, nonemetic B. weihenstephanensis strains MC84, MC37, MC10, MC58, and MC17, respectively.
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