Results 231 to 240 of about 12,331 (254)
Some of the next articles are maybe not open access.
Virology, 1967
Abstract Clear-plaque mutants of a 21-λ hybrid have been isolated. The mutants fall into 4 morphological classes and 3 of the classes behave as single complementation groups, cI, cII, and cIII. The map order, based on 3 point tests, is cIII, cI, cII … mi.
Margarethe Liedke-Kulke, A.D. Kaiser
openaire +3 more sources
Abstract Clear-plaque mutants of a 21-λ hybrid have been isolated. The mutants fall into 4 morphological classes and 3 of the classes behave as single complementation groups, cI, cII, and cIII. The map order, based on 3 point tests, is cIII, cI, cII … mi.
Margarethe Liedke-Kulke, A.D. Kaiser
openaire +3 more sources
Biophysical properties of N4 coliphage
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1966Abstract 1. 1. N4 bacteriophage, a recently isolated lysis-inhibiting phage active on Escherichia coli K12 strains, was purified from lysates with titres ranging from 5 to 10 · 10 11 plaque-forming units/ml, by several cycles of differential centrifugation followed by a final step of equilibrium centrifugation in CsCl.
G.C. Schito, Alessandra Pesce, G. Rialdi
openaire +3 more sources
Physical characteristics of new coliphages
Canadian Journal of Microbiology, 1974Seven new bacteriophages for Escherichia coli B, isolated from a farm animal waste lagoon, were characterized in regard to morphology, buoyant density, UV-sensitivity, and heat-sensitivity.
D. L. Berryhill +2 more
openaire +3 more sources
Rapid coliphage detection assay
Journal of Virological Methods, 2001A 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.
Joseph O. Falkinham, James E Stanek
openaire +2 more sources
Multiplication of Coliphage at High Concentration
Nature, 1949THE '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 ...
J W Czekalowski, D E Dolby
openaire +3 more sources
Lethal lysogenization by coliphage lambda
Virology, 1976Abstract 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.
Masako Ohashi, William F. Dove
openaire +3 more sources
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.
openaire +3 more sources
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.
openaire +3 more sources
Structural proteins of coliphage N4
Virology, 1973Abstract 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, Gian Carlo Schito, M. Toni
openaire +3 more sources
Coliphage survival in seawater
Water Research, 1985Abstract 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 +2 more sources
The genetics and physiology of coliphage N4
Virology, 1973Amber 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 +3 more sources