Abstract
FERTILE or F+ strains of Escherichia coli have been defined1,2 as those which are productive of recombinants even when crossed with sterile strains; other strains, F−, are defined as those which are productive of recombinants only if crossed with fertile strains. Fertility is transmissible from F+ to F− cells by ‘infection’ due to an agent (F) which is not separable from the cells1,2.
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MACCACARO, G. Cell Surface and Fertility in Escherichia coli. Nature 176, 125–126 (1955). https://doi.org/10.1038/176125a0
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DOI: https://doi.org/10.1038/176125a0
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