Results 211 to 220 of about 10,768 (245)

Physical map of coliphage N4 DNA

Virology, 1980
Abstract A detailed restriction endonuclease map of Escherichia coli phage N4 DNA is presented. The cleavage sites for restriction endonucleases Hae II (1 cut), Hha I (3 cuts), Xba I (5 cuts), Ava II (15 cuts), and Hpa I (25 cuts) have been determined by (1) digestion with endonucleases after end labeling of the DNA; (2) digestion with two ...
R, Zivin, C, Malone, L B, Rothman-Denes
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

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

Three Star Mutants of Coliphage T2

Journal of General Microbiology, 1958
SUMMARY: Star mutants of coliphages produce irregularly-shaped plaques which harbour mixed phage clones consisting of two or more phage genotypes: one type which forms star plaques identical in morphology and genetic constitution to those of the primary star mutant and other types which form regular genetically-homogeneous plaques.
E, McFALL, G S, STENT
openaire   +2 more sources

Coliphages as Indicators for the Microbial Quality of Treated Wastewater Effluents

Food and Environmnetal Virology, 2021
A. Nasser, S. Sasi, Y. Nitzan
semanticscholar   +1 more source

T7 coliphage inactivation by nitrous acid

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1970
Abstract 1. The inactivation of the T7 coliphage by HNO2 is a one-hit process. The inactivation rate is proportional to the HNO2 concentration and the length of treat ment; it increases when the pH is lowered although, in the absence of HNO2, the effect of H+ alone is insignificant. 2.
P, Dussault, J M, Bourgault, W G, Verly
openaire   +2 more sources

Physical map of coliphage BF23 DNA

Gene, 1986
Abstract Restriction endonuclease cleavage maps for BamHI, EcoRI, HindIII, PstI, and SalI have been determined for the Escherichia coli bacteriophage BF23 DNA.
K J, Heller, V, Krauel
openaire   +2 more sources

Capsular protection against virulent coliphage infection

Biotechnology and Bioengineering, 1970
AbstractThe ecological significance of bacterial capsules when virulent bacteriophages are present was explored by exposing continuous cultures of Escherichia coli ATCC 11303, in various stages of capsulation and clumping, to a virulent coliphage, T2. Only partial protection was provided by capsulation, but this could be a factor affecting survival in ...
M J, Paynter, H R, Bungay
openaire   +2 more sources

Transcription map of satellite coliphage P4

Virology, 1978
Abstract Satellite phage P4 carries an 11-kilobase genome which codes for both early and late proteins. The synthesis of P4 late proteins is prevented by mutations in P4 genes α and δ and is stimulated by the presence of the helper phage P2 (Barrett et al. , 1976; Souza et al. , 1977a).
J D, Harris, R, Calendar
openaire   +2 more sources