1887

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Volume 6, Issue 3

Induction of Defective and Temperate Bacteriophages in Free

Abstract

Summary

Bacteriophage-like particles were induced from 6 of 21 strains of stalked bacteria, using mitomycin C or ultraviolet irradiation as the inducing agents. The phage inductions were observed in strains of and The phage-like particles were observed, using electron microscopy. Two of the phage-like entities, tentatively designated defective phages, could not be propagated on any of 21 potential host strains tested, nor did they possess bacteriocin activity. Host strains which permitted lytic cycles of phage replication were found for four induced phages.These bacteriophages contained double-stranded DNA. The bacterial strains from which they were induced were [resistant to infection by their respective phage. Four bacterial strains were treated with specific antiphage serum, but clones so treated retained their capacity to produce the phages. The inefficacy of antiphage serum in curing the bacteria of phage suggested that these strains were lysogenic.

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  • Accepted:
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© Society for General Microbiology Ltd 1970
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1970-03-01
2024-04-19
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Induction of Defective and Temperate Bacteriophages in Caulobacter
J. Gen. Virol. 6, 421 (1970); https://doi.org/10.1099/0022-1317-6-3-421
/content/journal/jgv/10.1099/0022-1317-6-3-421
/content/journal/jgv/10.1099/0022-1317-6-3-421
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