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. 1974 Dec;120(3):1102–1108. doi: 10.1128/jb.120.3.1102-1108.1974

Comparative Studies on Induction of Sporulation and Synthesis of Inducible Enzymes in Bacillus subtilis

J G Coote a,1
PMCID: PMC245888  PMID: 4215791

Abstract

An attempt was made to determine whether sporulation and inducible enzyme synthesis in Bacillus subtilis are controlled by the same mechanism of catabolite repression. By the use of a thymine-requiring strain, it has been shown that, whereas sporulation remained repressed unless chromosome replication proceeded to completion, the induction of the enzymes histidase, sucrase, and α-glucosidase proceeded quite normally in the absence of continued deoxyribonucleic acid synthesis. It is concluded that the mechanism for overcoming the repression of sporulation differs qualitatively from that involved in overcoming the repression of inducible enzyme synthesis. Attempts to isolate pleiotropic mutants that would provide additional support for this contention were unsuccessful. A pleiotropic mutant deficient in phosphoenolpyruvate-dependent phosphotransferase activity sporulated quite well, whereas a mutant presumed deficient in glutamate synthetase sporulated poorly under all conditions.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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