Results 171 to 180 of about 7,171 (205)

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.)
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +1 more source

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.
openaire   +2 more sources

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.
openaire   +2 more sources

The Calcium Requirement of Coliphage T5

The Journal of Immunology, 1949
Abstract Stassano and de Beaufort (1) discovered that the growth of certain phages was inhibited by the presence of citrate in the culture medium, and that this inhibition could be overcome by the addition of calcium salts. Bordet and Renaux (2) investigated a strain of Shiga phage which was unable to lyse the host cells in the presence ...
openaire   +2 more sources

In vitro initiation of coliphage T7 mRNA

Archives of Biochemistry and Biophysics, 1972
Abstract The synthesis of two classes of late T7 proteins appears to be directed by several polycistronic messenger RNAs. To understand how they are translated in appropriate order during phage infection, we have isolated late mRNA from T7-infected cells and mRNA that was synthesized in vitro with the T7 RNA polymerase and T7 DNA.
R, Callahan, P, Leder
openaire   +2 more sources

Transduction by coliphage λ of the galactose marker

Virology, 1957
Abstract Phages obtained by induction of strain C600 Gal + made lysogenic for λ ++ when infecting strain 112 Gal − sensitive transduce Gal + with low frequency. The strain C600 Gal + is stable; it does not segregate Gal − . The transformed strains are “heterogenotes.” These heterogenotes have the following properties: 1. 1. They are Gal +
openaire   +2 more sources

A genetic study of the temperate coliphage λ

Virology, 1955
Abstract 1. 1. All the known markers in the temperate phage λ are linked to each other. 2. 2. Mating between pairs of intracellular particles occurs at random with respect to partner but is rather rare (average number of rounds of mating 0.5, assuming two reciprocal recombinants are formed simultaneously). 3. 3.
openaire   +2 more sources

Interferon Production by T4 Coliphage

Nature, 1970
W J, Kleinschmidt, R J, Douthart, E B, Murphy   +2 more
openaire   +2 more sources