학술논문
Role of altered rpoB alleles in Bacillus subtilis sporulation and spore resistance to heat, hydrogen peroxide, formaldehyde, and glutaraldehyde.
Document Type
Article
Source
Subject
*ALLELES
*BACILLUS subtilis
*FORMALDEHYDE
*GLUTARALDEHYDE
*HYDROGEN peroxide
*BACTERIAL sporulation
*RNA polymerases
*RIFAMPIN
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Language
ISSN
0302-8933
Abstract
Mutations in the RNA polymerase β-subunit gene rpoB causing resistance to rifampicin (Rif) in Bacillus subtilis were previously shown to lead to alterations in the expression of a number of global phenotypes known to be under transcriptional control. To better understand the influence of rpoB mutations on sporulation and spore resistance to heat and chemicals, cells and spores of the wild-type and twelve distinct congenic Rif mutant strains of B. subtilis were tested. Different levels of glucose catabolite repression during sporulation and spore resistance to heat and chemicals were observed in the Rif mutants, indicating the important role played by the RNA polymerase β-subunit, not only in the catalytic aspect of transcription, but also in the initiation of sporulation and in the spore resistance properties of B. subtilis. [ABSTRACT FROM AUTHOR]