PMID:4197271

Citation	Piggot, PJ (1973) Mapping of asporogenous mutations of Bacillus subtilis: a minimum estimate of the number of sporeulation operons. J. Bacteriol. 114:1241-53
Abstract	Sporulation-specific mutations in Bacillus subtilis have been mapped by transduction and transformation. The mutations caused blocks at stages 0, II, III, and IV of sporulation; more than one phenotype was found for each of these stages. On the basis of the criteria used to define a sporulation operon, a minimum estimate could be made of the number of operons activated during sporulation. Nine operons were identified for stage 0, eight for stage II, five for stage III, and six for stage IV. It is probable that several of these 28 operons are activated in groups so that the number of steps in the dependent sequence of sporulation events should turn out to be less than the number of operons.
Links	PubMed PMC285388
Keywords	Alkaline Phosphatase/metabolism; Anti-Bacterial Agents/pharmacology; Bacillus subtilis/enzymology; Bacillus subtilis/metabolism; Chromosome Mapping; Chromosomes, Bacterial; Crosses, Genetic; Cystine/metabolism; Glucose; Histidine/metabolism; Mutation; Operon; Oxidoreductases/metabolism; Peptide Hydrolases/metabolism; Phenotype; Recombination, Genetic; Spores, Bacterial/metabolism; Transduction, Genetic; Transformation, Genetic; Tryptophan/metabolism
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Phenotype of	Taxon Information	Genotype Information (if known)	Condition Information	OMP ID	OMP Term Name	ECO ID	ECO Term Name	Notes	Status
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