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. 1969 Jan;3(1):1–7. doi: 10.1128/jvi.3.1.1-7.1969

Potassium Requirement for Synthesis of Macromolecules in Bacillus subtilis Infected with Bacteriophage 2C 1

Dawn B Willis 1,2, Herbert L Ennis 1
PMCID: PMC375722  PMID: 4977239

Abstract

A mutant of Bacillus subtilis 168 (strain 168 KW), defective in its ability to concentrate K+ from low levels in the growth medium, was used to study the role of K+ in the development of phage 2C. Both the final burst size and the duration of the rise period depended on the K+ concentration in the medium. During normal infection (in the presence of K+), host deoxyribonucleic acid (DNA) synthesis stopped. The synthesis of host messenger ribonucleic acid (RNA) continued throughout infection, albeit at a steadily decreasing rate. The synthesis of ribosomal RNA and its subsequent incorporation into mature ribosomes also proceeded. In contrast to these findings, host DNA and messenger RNA synthesis were not inhibited in cells infected in the absence of K+. Only “early” phage messenger RNA was synthesized under these conditions of infection. Phage DNA synthesis was dependent on K+ irrespective of the requirement for this cation in protein synthesis.

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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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