Abstract
Joint transduction of the argR and envB genes was observed, at a frequency of 24.5%, when four envB strains were transduced to tetracycline resistance (Tetr) with bacteriophage P22 grown on an argR372::Tn10 envB+ donor. When round-cell argR372::Tn10 derivatives of those envB strains were used as donors, two of them did not produce envB transductants in wild-type LT2 and other envB+ recipients, even though large numbers of Tetr transductants were obtained. This apparent exclusion of envB mutations did not occur when mecillinam-resistant derivatives of those envB+ strains were used as recipients. Mutations conferring partial resistance to mecillinam were found, unlinked to the argR-envB region, in three of the four envB strains studied; envB+ derivatives of the four strains were competent to accept envB mutations excluded by wild-type recipients. It is suggested that some envB mutations are lethal in the absence of suppressor mutations, some of which increase resistance to mecillinam.
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- Adler H. I., Terry C. E., Hardigree A. A. Giant cells of Escherichia coli. J Bacteriol. 1968 Jan;95(1):139–142. doi: 10.1128/jb.95.1.139-142.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Anderson R. P., Roth J. R. Tandem chromosomal duplications in Salmonella typhimurium: fusion of histidine genes to novel promoters. J Mol Biol. 1978 Feb 15;119(1):147–166. doi: 10.1016/0022-2836(78)90274-7. [DOI] [PubMed] [Google Scholar]
- Antón D. N., Orce L. V. Envelope mutation promoting autolysis in Salmonella typhimurium. Mol Gen Genet. 1976 Feb 27;144(1):97–105. doi: 10.1007/BF00277311. [DOI] [PubMed] [Google Scholar]
- Antón D. N., de Micheli A. T., Palermo A. M. Isolation of round-cell mutants of Salmonella typhimurium. Can J Microbiol. 1983 Feb;29(2):170–173. doi: 10.1139/m83-029. [DOI] [PubMed] [Google Scholar]
- Bochner B. R., Huang H. C., Schieven G. L., Ames B. N. Positive selection for loss of tetracycline resistance. J Bacteriol. 1980 Aug;143(2):926–933. doi: 10.1128/jb.143.2.926-933.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gardner M. M., Hennig D. O., Kelln R. A. Control of arg gene expression in Salmonella typhimurium by the arginine repressor from Escherichia coli K-12. Mol Gen Genet. 1983;189(3):458–462. doi: 10.1007/BF00325909. [DOI] [PubMed] [Google Scholar]
- Iwaya M., Jones C. W., Khorana J., Strominger J. L. Mapping of the mecillinam-resistant, round morphological mutants of Escherichia coli. J Bacteriol. 1978 Jan;133(1):196–202. doi: 10.1128/jb.133.1.196-202.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kelln R. A., Foltermann K. F., O'Donovan G. A. Location of the argR gene on the chromosome of Salmonella typhimurium. Mol Gen Genet. 1975 Sep 8;139(4):277–284. doi: 10.1007/BF00267967. [DOI] [PubMed] [Google Scholar]
- Matsuhashi S., Kamiryo T., Blumberg P. M., Linnett P., Willoughby E., Strominger J. L. Mechanism of action and development of resistance to a new amidino penicillin. J Bacteriol. 1974 Feb;117(2):578–587. doi: 10.1128/jb.117.2.578-587.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Matsuzawa H., Hayakawa K., Sato T., Imahori K. Characterization and genetic analysis of a mutant of Escherichia coli K-12 with rounded morphology. J Bacteriol. 1973 Jul;115(1):436–442. doi: 10.1128/jb.115.1.436-442.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Normark S. Mutation in Escherichia coli K-12 mediating spherelike envelopes and changes tolerance to ultraviolet irradiation and some antibiotics. J Bacteriol. 1969 Jun;98(3):1274–1277. doi: 10.1128/jb.98.3.1274-1277.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sompolinsky D., Samra Z. Influence of magnesium and manganese on some biological and physical properties of tetracycline. J Bacteriol. 1972 May;110(2):468–476. doi: 10.1128/jb.110.2.468-476.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sonntag I., Schwarz H., Hirota Y., Henning U. Cell envelope and shape of Escherichia coli: multiple mutants missing the outer membrane lipoprotein and other major outer membrane proteins. J Bacteriol. 1978 Oct;136(1):280–285. doi: 10.1128/jb.136.1.280-285.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Spratt B. G., Pardee A. B. Penicillin-binding proteins and cell shape in E. coli. Nature. 1975 Apr 10;254(5500):516–517. doi: 10.1038/254516a0. [DOI] [PubMed] [Google Scholar]
- Tamaki S., Matsuzawa H., Matsuhashi M. Cluster of mrdA and mrdB genes responsible for the rod shape and mecillinam sensitivity of Escherichia coli. J Bacteriol. 1980 Jan;141(1):52–57. doi: 10.1128/jb.141.1.52-57.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Westling-Häggström B., Normark S. Genetic and physiological analysis of an envB spherelike mutant of Escherichia coli K-12 and characterization of its transductants. J Bacteriol. 1975 Jul;123(1):75–82. doi: 10.1128/jb.123.1.75-82.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wyche J. H., Kennedy J., Hartman Z., Hartman P. E., Diven J. Round-cell mutant of Salmonella typhimurium. J Bacteriol. 1974 Nov;120(2):965–969. doi: 10.1128/jb.120.2.965-969.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]


