Open AccessCovert fi − R Factors in fi − R + Strains of Bacteria
Author(s) -
E Romero,
Elinor Meynell
Publication year - 1969
Publication title -
journal of bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.652
H-Index - 246
eISSN - 1067-8832
pISSN - 0021-9193
DOI - 10.1128/jb.97.2.780-786.1969
Subject(s) - biology , bacteria , physics , microbiology and biotechnology , genetics
The presence of anfi − sex factor can be detected by propagation of the I-specific phage If1. By use of this method of detection, a high proportion of strains withfi + R factors were shown also to carry anfi − factor which was frequently a second R factor. In some doubly R+ strains, thefi + and thefi − factor were observed to be transferred independently at conjugation.
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