Tag Archive for 'Doxycycline' | Sci.News

A DNA coverage plot for Escherichia coli following 60 generations (96 h) of growth in the presence and absence of doxycycline: data in the presence (three inner annuli, ‘Dox’) and absence (three outer annuli, ‘No-Dox’) indicate potential genetic mechanisms supporting positive r (growth rate), K (carrying capacity) and resistance adaptation; a change in DNA detected in the sequencing protocol is shown in red (reduction) and blue (increase; and white is complete loss), respectively, with respect to no mean change (in grey); the inner ring (black) indicates genome position and three replicates for each treatment were sequenced; the white region marked dlp12 shows the deletion of prophage dlp12 only during doxycycline treatment; the outer text labels summarize the estimated frequencies of mutations common to all three replicate populations, indicating positive selection for the doxycycline efflux operon, acr, with the prophage deletion at even higher frequency. Image credit: C. Reding-Roman et al, doi: 10.1038/s41559-016-0050.

New Study Highlights How Antibiotics Can Stimulate Bacterial Reproduction

Feb 1, 2017 by News Staff

The growth of bacteria can be stimulated by antibiotics, according to a study published in the journal Nature Ecology & Evolution. A DNA coverage plot...