Gene Recombination and Segregation of Resistance Factor R in Escherichia coli
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چکیده
منابع مشابه
Gene Recombination in Escherichia coli
AKALYSIS of mixed cultures. sf nutritional mutants has revctlled the presence of new types which strongiy suggest the occurrence of a sexual process in the bacterium; EsciumcJ~ia coti. The mutants consist of strains which differ from their parent wild type, strain I.-l’& in lacking the ahilitv to synthesize growth-factors. . As a result of these dejiciencies they <ill only grow in media supplem...
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rospect, (1) it must be judged to have been technically achievable at an earlier time with methods then available; (2) it must be judged to have been understandable, capable of being expressed in terms comprehensible to working scientists at the time; and (3) its implications must have been capable of having been appreciated. g In an era of Big Science, with goals such as the conquest of cancer...
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Sugino, Yoshinobu (Osaka University, Osaka, Japan) and Yukinori Hirota. Conjugal fertility associated with resistance factor R in Escherichia coli. J. Bacteriol. 84:902-910. 1962.-The introduction of the contagious drug-resistance factor, R, into an F(-) strain of Escherichia coli allows the R(+)F(-) strain to mate with F(-)R(-) strains. The chromosome fragment transferred from the R(+) cell is...
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The study of inheritance in bacteria has, for the most part, been confined to the investigation. of mutational changes in the course of clonal reproduction. With the exception of experiments on pneumococcus type transformations there have been few studies on the direct hereditary interaction of one bacterial type with another. The conception that bacteria have no sexual mode of reproduction is ...
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R factor mediated transfer of antibiotic resistance between Enterobacteriaceae has been reported to occur in the mammalian gastrointestinal tract (Kasuya, I 964; Reed, Sieckmann & Georgi, 1969; Guinie, 1970; Wiedemann, Knothe & Doll, 1970) where conditions are mainly anaerobic as demonstrated by the abundance of obligate anaerobic bacteria such as Bacteroides species (Moore, Cat0 & Holdeman, 19...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1966
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.91.1.51-62.1966