Abstract
Bacteriophage phiX174 cannot grow in a temperature-sensitive dnaC mutant of Escherichia coli C at the nonpermissive temperature. The inability to grow is the result of inhibition of virus DNA synthesis. Parental replicative form synthesis is not temperature sensitive. Single-stranded virus DNA continues to be synthesized for at least 45 min after shifting to the nonpermissive temperature late in infection. In contrast, the replication of the replicative form terminates within 5 min after shifting to the nonpermissive temperature.
MeSH Terms
Centrifugation, Density Gradient
Coliphages/growth & development,metabolism
DNA Replication
DNA, Bacterial/biosynthesis
DNA, Circular/biosynthesis
DNA, Single-Stranded/biosynthesis
DNA, Viral/biosynthesis
Escherichia coli/metabolism
Mutation
Phosphorus Radioisotopes
Pronase
Temperature
Thymidine/metabolism
Thymine/metabolism
Time Factors
Tritium
Virus Replication
Chemicals
DNA, Bacterial
DNA, Circular
DNA, Single-Stranded
DNA, Viral
Phosphorus Radioisotopes
Tritium
Pronase
Thymine
Thymidine
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Kranias E G
Dumas L B
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