Decadent Sporulation Mutants of Bacillus subtilis
- 1 February 1979
- journal article
- research article
- Published by Microbiology Society in Journal of General Microbiology
- Vol. 110 (2), 381-392
- https://doi.org/10.1099/00221287-110-2-381
Abstract
In decadent sporulation mutants, sporulating populations are heterogeneous: the cells reach successive chemical and physical resistances with progressively decreasing frequencies. Each decadent mutant can be characterized by the shape and slope of the curve describing the frequency of cells resistant to various agents (the resistance spectrum). In some mutants the resistance spectrum decreases progressively from xylene resistance to heat resistance; in other mutants it decreases rapidly between octanol resistance and chloroform resistance. EM showed that in 2 mutants the majority of the cells are blocked at stages III and IV; the number of cells that develop further to reach successive morphological stages falls off progressively. In 2 other mutants most cells reach stage V. Cortexless spores are also frequent. One of the decadent mutations, SpoL1, was localized between aroD and acf. The phenotype of decadent mutants is discussed in terms of sequential gene activation.This publication has 6 references indexed in Scilit:
- A Bacillus subtilis Mutant Requiring Dipicolinic Acid for the Development of Heat-resistant SporesJournal of General Microbiology, 1979
- Spore control (Sco) mutations in Bacillus subtilisMolecular Genetics and Genomics, 1978
- Spore control (Sco) mutations in Bacillus subtilisMolecular Genetics and Genomics, 1978
- Spore control (Sco) mutations in Bacillus subtilisMolecular Genetics and Genomics, 1978
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