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| Content Provider | PubMed Central |
|---|---|
| Author | Kahn, Phyllis Helinski, D. R. |
| Abstract | Kahn, Phyllis L. (Princeton University, Princeton, N.J.), and Donald R. Helinski. Relationship between colicinogenic factors E1 and V and an F factor in Escherichia coli. J. Bacteriol. 88:1573–1579. 1964.—Colicinogenic factors are the genetic determinants for colicin production in enteric bacteria. An examination of the relationship of two colicinogenic factors, colE 1 and colV, to the F factor of fertility in Escherichia coli revealed that the colE 1 factor does not have the properties of a fertility factor, whereas the colV factor appears to possess a genetic determinant of fertility (Fv). Cells containing colE 1 alone do not recombine with F− strains, whereas V+Fv + strains can recombine, but at a lower frequency for certain markers than cells containing the F factor from E. coli. Strains possessing the colV factor can transfer the V+ and Fv + properties to an F− recipient, whereas strains harboring colE 1 alone are not able to transfer this factor. When a V+Fv +E1 + strain is used as a donor, recipients show Fv + sexuality characteristics only if they also acquire the ability to produce colicin V. The colV factor is transferred at lower efficiency to F+ than to F− strains, whereas the transfer of colE 1 is equally efficient to both. In addition, the V+Fv +F+ colonies isolated segregate V+Fv +F− and V−Fv −F+ cells at high frequency, indicating an incompatibility between the colV and F factors. Finally, under the conditions employed, acridine orange does not remove the colE 1 factor, but will remove the colV factor from colicinogenic cells. In every case tested, the V+ and Fv + characteristics are removed simultaneously by the acridine orange treatment. |
| Starting Page | 1573 |
| File Format | |
| ISSN | 10985530 |
| e-ISSN | 10985530 |
| Journal | Journal of Bacteriology |
| Issue Number | 6 |
| Volume Number | 88 |
| Language | English |
| Publisher Date | 1964-12-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Molecular Biology Microbiology |
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