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. 1972 Sep;24(3):418–423. doi: 10.1128/am.24.3.418-423.1972

Ultrahigh-Temperature Activation of a Low-Temperature Bacillus subtilis Spore Germination System 1,2

D M Adams 1,3, F F Busta 1
PMCID: PMC376534  PMID: 4627968

Abstract

Exposure of Bacillus subtilis A spores to 115 to 125 C for several seconds activated a low-temperature germination system that remained dormant after a heat treatment that activated the normal l-alanine- and glucose-stimulated germination systems. The low-temperature germination system was characterized by an optimum temperature lower than that of the l-alanine or glucose germination systems (30 C versus 45 C), germination in the absence of exogenous germination stimulants, and the capacity for heat-induced deactivation and subsequent reactivation. The rates of activation at 115 to 125 C were exponential and were not influenced by a previous heat treatment that activated the l-alanine- or glucose-stimulated germination systems. Although activation of the low-temperature germination system was accompanied by suppression of l-alanine-stimulated germination, it did not appear to be a modification of the l-alanine germination system.

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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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