Abstract
The isolation and characterization of high-frequency recombining strains from different Escherichia coli host cells containing either the F factor or the Col V factor are described. The strains (with one exception) formed from three of the V + parents showed the same origin and polarity of transfer ( xyl-arg-pro-trp-his-mal ). The Hfr strains formed from the one remaining V + and the F + host cells showed a greater variety in their points of origin. In addition, several Hfr strains isolated from V + parents lost the ability to produce colicin V. F v + segregants of these were isolated, and the F v factors appeared to retain their preferential site for Hfr formation, but they lacked other propertes controlled by the Col V factor. Chromosomal integration of episomes and its relation to the fertility of F + and V + strains are discussed. Production of colicin V appeared to be uninfluenced by the state of the Col V factor within the cell.
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Dates
Type | When |
---|---|
Created | 5 years, 7 months ago (Jan. 4, 2020, 9:09 p.m.) |
Deposited | 4 years, 1 month ago (July 29, 2021, 12:48 p.m.) |
Indexed | 1 year, 7 months ago (Jan. 26, 2024, 12:23 a.m.) |
Issued | 57 years, 2 months ago (July 1, 1968) |
Published | 57 years, 2 months ago (July 1, 1968) |
Published Print | 57 years, 2 months ago (July 1, 1968) |
@article{Khan_1968, title={Isolation of High-Frequency Recombining Strains from Escherichia coli Containing the V Colicinogenic Factor}, volume={96}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.96.1.205-214.1968}, DOI={10.1128/jb.96.1.205-214.1968}, number={1}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Khan, Phyllis L.}, year={1968}, month=jul, pages={205–214} }