PMID: 108254May 1, 1979

Specific inhibition of outgrowth of Bacillus subtilis spores by novobiocin

Journal of Bacteriology
M GottfriedH O Halvorson


Spores of a Bacillus subtilis mutant temperature sensitive in deoxyribonucleic acid (DNA) replication proceeded through outgrowth at the nonpermissive temperature to the same extent as the wild-type parent spores. In contrast, the DNA synthesis inhibitor novobiocin completely prevented spore outgrowth while displaying a marginal effect on logarithmic growth during one generation time. Inhibition of outgrowth by novobiocin occurred in the absence of DNA replication, as demonstrated in an experiment with spores of the temperature-sensitive DNA synthesis mutant at the restrictive temperature. Novobiocin inhibited the initial rate of ribonucleic acid synthesis to the same extent in germinated spores and in exponentially growing cells. A novobiocin-resistant mutant underwent normal outgrowth in the presence of novobiocin. Therefore, novobiocin inhibition was independent of its effect on chromosome replication per se.


Jan 1, 1989·Archives of Microbiology·K T Smith, I W Dawes
Jan 1, 1983·Zeitschrift für allgemeine Mikrobiologie·M Hecker

Related Concepts

Natto Bacteria
DNA Replication
DNA, Bacterial
Novobiocin Sodium
Spores, Bacterial

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