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TRANSFER OF THE SALMONELLA COLICIN CHARACTER IN SALMONELLA CULTURES
Author(s) -
Atkinson Nancy
Publication year - 1974
Publication title -
australian journal of experimental biology and medical science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.999
H-Index - 104
eISSN - 1440-1711
pISSN - 0004-945X
DOI - 10.1038/icb.1974.51
Subject(s) - colicin , salmonella , transferability , microbiology and biotechnology , biology , bacteriocin , enterobacteriaceae , character (mathematics) , bacteria , escherichia coli , genetics , antimicrobial , statistics , geometry , mathematics , logit , gene
Summary Strains of Salmonella previously divided into four groups (1, 2, 3 and 4) on their production of colicin‐like antibiotics (called salmonella colicins or 'salcols’) were examined in the present work for ability to transfer their salmonella colicin character in mixed culture to non‐producer strains of Salmonella or Arizona as recipients. Producer strains of groups 1 and 4 readily transferred the salcol character, but no evidence of transfer was obtained with producer strains of groups 2 and 3. The group 1 salcol factors were related to the factor for colicin I and were shown to be of three kinds (labelled 1a, 1b and 1c) defined by the inhibition zone patterns of their salcols on two Salmonella indicator strains. The group 4 salcol producer was shown to have two salcol factors; one was transferable and gave rise to the production of a non‐diffusible salcol related to colicin B; the second factor was not transferable and gave rise to a diffusible salcol related to, but not identical with, colicin V. Differences in transferability and inhibition zone pattern distinguished the salcols from the related colicins.