Formation of the Vegetative Pool by Induced Defective and Healthy Lysogenic Strains of Escherichia coli

Whitfield, J. F.; Appleyard, Rodney

doi:10.1099/00221287-17-2-453

Cited by 17 publications

(1 citation statement)

References 13 publications

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“…A number of observations have been made on the effect of inducing agents and the response of the prophage leading to conclusions varying from the repressor theory. It was proposed by sorne workers (Whitfield and Appleyard, 1957) that in the proces5 of induction the prophage i5 not itself physiea11y converted to a vegetative phage, but makes at least one vegetative repliea which initiates vegetative multiplication. It is proposed that the DNA of the host is inhibited by u.v.…”

Section: Current Theories Of Immunitymentioning

confidence: 99%

A temperate bacteriophage of Clostridium perfringens

Mahony¹,

Kalz²

1968

Can. J. Microbiol.

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A temperate bacteriophage was isolated from a lysogenic strain of Clostridium perfringens. This lysogenic strain was inducible by ultraviolet light. Plaques produced on solid medium were small with turbid centers. Electron microscopy revealed that the phage has a polyhedral head, 80 × 70 mμ, and a striated tail, 200 mμ long.One-step growth experiments revealed latent and release periods of 45 minutes each. Phage yields were variable but, in general, quite low. The adsorption rate and temperature and pH stability of the phage were determined.The diphenylamine reaction and acridine orange staining suggested that the phage nucleic acid is deoxyribonucleic acid.

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Section: Current Theories Of Immunitymentioning

confidence: 99%