Deletion of sigB in Bacillus cereus affects spore properties.
In Bacillus cereus and other gram-positive bacteria the alternative sigma factor sigma(B) is an important regulator of the stress response. Deletion of the sigB gene generally leads to a stress-sensitive phenotype of vegetative cells. In this study, we describe the effect of the deletion of the sigB gene in B. cereus on spore properties. In particular, spores of the sigB deletion mutant showed a defect in germination upon exposure to the germinants alanine and inosine.
de Vries
Ynte P
YP
Wageningen Centre for Food Sciences, Bomenweg 2, 6703 HD Wageningen, The Netherlands.
Hornstra
Luc M
LM
Atmadja
Radna D
RD
Schaik
Willem van
Wv
de Vos
Willem M
WM
Abee
Tjakko
T
D001409:Bacillus cereus / Q000235:genetics / Q000254:growth & development / Q000502:physiology*; D001426:Bacterial Proteins / Q000235:genetics* / Q000502:physiology*; D003470:Culture Media; D017353:Gene Deletion; D015964:Gene Expression Regulation, Bacterial; D018869:Heat-Shock Response; D012808:Sigma Factor / Q000235:genetics* / Q000502:physiology*; D013171:Spores, Bacterial / Q000502:physiology
D001426:Bacterial Proteins; D003470:Culture Media; C079011:SigB protein, Bacteria; D012808:Sigma Factor