@article{mbs:/content/journal/jmm/10.1099/00222615-22-2-119, author = "Roy, S. and Chakravorty, M.", title = "Spontaneous Deletions of Drug-Resistance Determinants from Salmonella Typhimurium in Escherichia Coli", journal= "Journal of Medical Microbiology", year = "1986", volume = "22", number = "2", pages = "119-123", doi = "https://doi.org/10.1099/00222615-22-2-119", url = "https://www.microbiologyresearch.org/content/journal/jmm/10.1099/00222615-22-2-119", publisher = "Microbiology Society", issn = "1473-5644", type = "Journal Article", abstract = "Summary Plasmids isolated from two different clinical isolates of Salmonella typhimurium, both resistant to the antibiotics ampicillin, tetracycline, streptomycin and chloramphenicol, were used to transform Escherichia coli. Segregation of antibiotic-resistance determinants occurred in both cases. Analysis of plasmids from one set of segregants by DNA-DNA hybridisation indicated that the segregation was due to precise deletions in the transforming plasmid.", }