Change in methylation of Salmonella bacteriophage P3 deoxyribonucleic acid with host-controlled modification by Escherichia coli.
نویسندگان
چکیده
Modification of bacteriophage P3 by passage through Escherichia coli K was correlated with a 54% decrease in the content of 6-methylaminopurine in the phage deoxyribonucleic acid.
منابع مشابه
Transfection of Escherichia coli and Salmonella typhimurium spheroplasts: host-controlled restriction of infective bacteriophage P22 deoxyribonucleic acid.
Under proper conditions, one infective center was obtained for 3 x 10(8) molecules of P22 phage deoxyribonucleic acid (DNA) when lysozyme-ethylenediaminetetraacetic acid spheroplasts of Escherichia coli were transfected in the presence of 25 mug of protamine sulfate per ml. A 3- to 50-fold B-specific and K-specific E. coli restriction of the incoming P22 DNA was observed. When P22 DNA-infected ...
متن کاملTransfection of Escherichia coli and Salmonella typhimurium Spheroplasts: Host-Controlled Restriction
Under proper conditions, one infective center was obtained for 3 X 108 molecules of P22 phage deoxyribonucleic acid (DNA) when lysozyme-ethylenediaminetetraacetic acid spheroplasts of Escherichia coil were transfected in the presence of 25 /Ig of protamine sulfate per ml. A 3to 50-fold B-specific and K-specific E. coli restriction of the incoming P22 DNA was observed. When P22 DNA-infected E. c...
متن کاملTransfection of Escherichia coli and Salmonella typhimurium Spheroplasts: Host-Controlled Restriction
Under proper conditions, one infective center was obtained for 3 X 108 molecules of P22 phage deoxyribonucleic acid (DNA) when lysozyme-ethylenediaminetetraacetic acid spheroplasts of Escherichia coil were transfected in the presence of 25 /Ig of protamine sulfate per ml. A 3to 50-fold B-specific and K-specific E. coli restriction of the incoming P22 DNA was observed. When P22 DNA-infected E. c...
متن کاملIsolation of lytic bacteriophages against pathogenic Escherichia coli strains in poultry in the northwest of Iran
In this study, 90 internal organ samples of poultry with symptoms of colibacillosis were obtained from Maragheh poultry farms in East Azerbaijan, Iran. In total, 70 bacterial isolates were confirmed as Escherichia coli (E. coli) strains using standard biochemical tests, and antibiotic sensitivity was determined by the disk diffusion method. Antibiotics used in this study included ampicillin, pe...
متن کاملGenetics of host-controlled restriction and modification of deoxyribonucleic acid in Escherichia coli.
Lederberg, Seymour (Brown University, Providence, R.I.). Genetics of host-controlled restriction and modification of deoxyribonucleic acid in Escherichia coli. J. Bacteriol. 91:1029-1036. 1966.-The locus for the host specific restriction and modification of deoxyribonucleic acid in Escherichia coli has been mapped by matings between mutants for these characters in strains K-12, C600, and B. Lin...
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ورودعنوان ژورنال:
- Journal of virology
دوره 10 3 شماره
صفحات -
تاریخ انتشار 1972