Incomplete bacteriophage-like particles in ultraviolet-irradiated haemophilus.
نویسندگان
چکیده
Incomplete phagelike particles were found in competent and incompetent cells of Haemophilus influenzae Rd (transformable) lysed after exposure to ultraviolet radiation.
منابع مشابه
Relationship between Ultraviolet Sensitivity and Ability to Propagate Ultraviolet-irradiated Bacteriophage.
Hill, Ruth F. (Columbia University, New York, N.Y.). Relationship between ultraviolet sensitivity and ability to propagate ultraviolet-irradiated bacteriophage. J. Bacteriol. 88:1283-1287. 1964.-Mutants with a reduced ability to propagate ultraviolet-damaged bacteriophage T(1) were isolated from Escherichia coli strain B/r. The change in this ability varied from a slight to a very marked loss; ...
متن کاملUltraviolet mutagenesis in bacteriophage T-4. I. Irradiation of extracellular phage particles.
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...
متن کاملIsologous Interference with Ultraviolet and X-ray Irradiated Bacteriophage T2.
Levy, Stuart B. (Institut du Radium, Paris, France). Isologous interference with ultraviolet and X-ray irradiated bacteriophage T(2). J. Bacteriol. 87:1330-1338. 1964.-Qualitative and quantitative analysis of the interference capacity of an irradiated T(2) bacteriophage was made with ultraviolet and X-ray irradiation. Two different effects were found to explain the total interference picture in...
متن کاملRepair of ultraviolet-irradiated transforming deoxyribonucleic acid in Haemophilus influenzae.
Ultraviolet-sensitive and wild-type Haemophilus influenzae cells were exposed to irradiated and unirradiated transforming deoxyribonucleic acid (DNA) containing a marker which can be linked to another marker in the cells. Lysates were made after various times of incubation and assayed for transforming activity on an excisionless recipient. Repair can be noted as an increase in activity from the...
متن کاملAction of bacteriophage T4 ultraviolet endonuclease on duplex DNA containing one ultraviolet-irradiated strand.
Previous studies have indicated that the ultraviolet endonuclease of bacteriophage T4 acts specifically at pyrimidine dimer sites in ultraviolet-irradiated DNA. At such sites the enzyme could conceivably catalyze endonucleolytic incision of the DNA either on the dimer-containing strand or on the strand directly opposite to the dimer. In the present work, a direct test of these alternatives was ...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 98 2 شماره
صفحات -
تاریخ انتشار 1969