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. 1975 Jul;30(1):1–3. doi: 10.1128/am.30.1.1-3.1975

Effect of pH on Sporulation of Bacillus Stearothermophilus

S Yazdany *, K B Lashkari *
PMCID: PMC187103  PMID: 238470

Abstract

An improved broth medium was developed for high growth yields of Bacillus subtilis var. niger NCIB 8649, Bacillus cereus NCIB 9373, and Bacillus stearothermophilus NCIB 8919 and ATCC 7953. Sporulation was abundant (1.1 × 108B. subtilis var. niger and 9.2 × 107B. cereus per ml) at an initial pH of 7.0. Sporulation of both strains of B. stearothermophilus took place (1.9 × 107 and 2.4 × 107/ml, respectively) in this medium when initial pH values of 7.7 to 8.7 were used.

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Selected References

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

  1. BERNLOHR R. W., NOVELLI G. D. Antibiotic production as a function of spore formation in Bacillus licheniformis. Nature. 1959 Oct 17;184(Suppl 16):1256–1257. doi: 10.1038/1841256a0. [DOI] [PubMed] [Google Scholar]
  2. Briggs A., Yazdany S. Effect of sodium chloride on the heat and radiation resistance and on the recovery of heated or irradiated spores of the genus bacillus. J Appl Bacteriol. 1970 Dec;33(4):621–632. doi: 10.1111/j.1365-2672.1970.tb02243.x. [DOI] [PubMed] [Google Scholar]
  3. COOK A. M., BROWN M. R. THE RELATION BETWEEN HEAT ACTIVATION AND COLONY FORMATION FOR THE SPORES OF BACILLUS STEAROTHERMOPHILUS. J Pharm Pharmacol. 1964 Nov;16:725–732. doi: 10.1111/j.2042-7158.1964.tb07396.x. [DOI] [PubMed] [Google Scholar]
  4. COOK A. M., ROBERTS T. A., WIDDOWSON J. P. GAMMA IRRADIATION OF BACILLUS SUBTILIS SPORES IN THE PRESENCE OF SUGARS. J Gen Microbiol. 1964 Feb;34:185–193. doi: 10.1099/00221287-34-2-185. [DOI] [PubMed] [Google Scholar]
  5. De Guzman A., Fields M. L., Humbert R. D., Kazanas N. Sporulation and heat resistance of Bacillus stearothermophilus spores produced in chemically defined media. J Bacteriol. 1972 May;110(2):775–776. doi: 10.1128/jb.110.2.775-776.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. HANSON R. S., SRINIVASAN V. R., HALVORSON H. O. BIOCHEMISTRY OF SPORULATION. II. ENZYMATIC CHANGES DURING SPORULATION OF BACILLUS CEREUS. J Bacteriol. 1963 Jul;86:45–50. doi: 10.1128/jb.86.1.45-50.1963. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Kim J., Naylor H. B. Spore production by Bacillus stearothermophilus. Appl Microbiol. 1966 Jul;14(4):690–691. doi: 10.1128/am.14.4.690-691.1966. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Kingan S. L., Ensign J. C. Isolation and characterization of three autolytic enzymes associated with sporulation of Bacillus thuringiensis var. thuringiensis. J Bacteriol. 1968 Sep;96(3):629–638. doi: 10.1128/jb.96.3.629-638.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. NAKATA H. M., HALVORSON H. O. Biochemical changes occurring during growth and sporulation of Bacillus cereus. J Bacteriol. 1960 Dec;80:801–810. doi: 10.1128/jb.80.6.801-810.1960. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Thompson P. J., Thames O. A. Sporulation of Bacillus stearothermophilus. Appl Microbiol. 1967 Sep;15(5):975–979. doi: 10.1128/am.15.5.975-979.1967. [DOI] [PMC free article] [PubMed] [Google Scholar]

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