Ultraviolet Irradiation of Bacteriophage During Intracellular Growth
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چکیده
منابع مشابه
Ultraviolet Irradiation of Bacteriophage During Intracellular Growth.
In the course of attempts to produce mutations in bacteriophage by ultraviolet irradiation of bacteria infected with the phage, we found that suppression of the ability of an infected bacterium to liberate phage required higher doses than either sterilization of noninfected bacteria or inactivation of free phage. . The doses required to suppress phage liberation varied in the course of the inte...
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Growing Escherichia coli infected with bacteriophage T2 was x-rayed during the 21 minute latent period which elapses between infection and lysis of the cells. Survival curves of the infected bacteria were determined almost from minute to minute; they disclosed the following facts which are related to the process of phage growth: During the first 7 minutes, the infective virus particle remains i...
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The effects of chloramphenicol, nalidixic acid, mitomycin C, NaCN, and ultraviolet irradiation at 253.7 nm on F pili production by Escherichia coli cells was studied by electron microscopy. The results show that cells contain pools of pili protein, and that assembly does not require synthesis of protein or deoxyribonucleic acid (DNA). NaCN (2 x 10(-2)m) prevents the reappearance of pili and cau...
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Drake, John W. (University of Illinois, Urbana). Ultraviolet mutagenesis in bacteriophage T4. I. Irradiation of extracellular phage particles. J. Bacteriol. 91:1775-1780. 1966.-Ultraviolet (UV) irradiation of extracellular T4 phage particles induces about 2 x 10(-4)r mutations per lethal hit. The mutants largely escape detection unless the irradiated phages are plated with very soft overlay aga...
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Ultraviolet germicidal irradiation (UVGI) is a disinfection method that uses ultraviolet (UV) light at sufficiently short wavelength to kill microorganisms. It is used in a variety of applications, such as food, air and water purification. UV has been a known mutagen at the cellular level for more than one-hundred years. The 1903 Nobel Prize for Medicine was awarded to Niels Finsen for his use ...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1947
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.53.2.149-163.1947