Results 171 to 180 of about 6,539 (207)

Lethal lysogenization by coliphage lambda

Virology, 1976
Abstract Mutants of lambda insensitive to epistatic replication inhibition by repressor ( ri c ) were studied during lysogenization of sensitive host cells. These mutants establish defective complexes which neither lyse nor multiply as lysogens.
M, Ohashi, W F, Dove
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Multiplication of Coliphage at High Concentration

Nature, 1949
THE 'single-step' method devised by Ellis and Delbruck1 has proved of immense value in the hands of a number of workers in studying the multiplication of various bacteriophages ; but it was devised specifically to investigate the behaviour of bacteria and adsorbed phage at high dilution, and gives no direct information about the more complex situation ...
D E, DOLBY, J W, CZEKALOWSKI
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RNA in Coliphage T5

Nature, 1973
VIRUSES are thought to have either RNA or DNA as their genetic material, but not both1, although oncogenic RNA viruses containing reverse transcriptase have been shown to contain some DNA. I did not expect to find that coliphage T5, a DNA-containing virus, also contained some RNA.
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Molecular weights of coliphages and coliphage DNA

Journal of Molecular Biology, 1970
Frank C. Bancroft, David Freifelder
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Coli and Coliphage

Nature, 1973
Experiments in Molecular Genetics. By Jeffrey H. Miller. Pp. xv + 466. (Cold Spring Harbor Laboratory: Cold Spring Harbor, New York, 1972.)
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Structural proteins of coliphage N4

Virology, 1973
Abstract The proteins from bacteriophage N4, dissociated with 1% SDS and 2% 2-mercaptoethanol, have been investigated by SDS polyacrylamide gel electrophoresis. Ten different polypeptide chains were identified in the purified virus. The molecular weights of the protein monomers estimated by coelectrophoresis with marker proteins ranged from 31,000 to
M, Giraldi, M, Toni, G C, Schito
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Rapid coliphage detection assay

Journal of Virological Methods, 2001
A rapid coliphage detection assay was developed, based on the phage-induced release of beta-galactosidase from cells of Escherichia coli. The assay could detect as few as five coliphage per sample without an overnight incubation period. The range of acceptable assay parameters was identified.
J E, Stanek, J O, Falkinham
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The genetics and physiology of coliphage N4

Virology, 1973
Amber mutants of bacteriophage N4 were isolated and classified into 27 cistrons by complementation tests. A group of 5 cistrons are essential for the synthesis of phage DNA, whereas 22 other cistrons, when defective, permit varying degrees of N4 DNA replication.
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Coliphage survival in seawater

Water Research, 1985
Abstract The relative survival of coliphages isolated from seawater under controlled conditions in different media, in the laboratory and in the marine environment, was investigated. The results show that the survival under controlled conditions in different media, and also in the sea, is affected by biological and chemical factors.
Juan J. Borrego, Pedro Romero
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Cyclization of coliphage 186 DNA

Journal of Molecular Biology, 1967
Equilibrium and kinetic studies have been made on the cyclization of coliphage 186 DNA. In 0·13 m -Na + , the melting temperature of the cohesive ends ( T m ), i.e. the midpoint of the linear monomer to cyclic monomer transition, occurs at 63°C, which is 12°C above that of λb2b5c DNA in the same medium.
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