But sometime around the 31,500th generation, something dramatic happened in just one of the populations - the bacteria suddenly acquired the ability to metabolise citrate, a second nutrient in their culture medium that E. coli normally cannot use.
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Evolution Hidden in Plain Sight - Phenomena: The Loom - 0 views
Bacteria make major evolutionary shift in the lab - life - 09 June 2008 - New Scientist - 0 views
The Birth of the New, The Rewiring of the Old | The Loom | Discover Magazine - 0 views
Bacteria evolve resistance more quickly when stronger antibiotics are used - 1 views
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they found that the rate of evolution of antibiotic resistance speeds up when potent treatments are given because resistant bacterial cells flourish most during the most aggressive therapies.
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Hmm common sense?
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Kind of. So if you remove the competition more completely with aggressive antibiotics, the proportion of remaining bacteria that are resistant is higher. Of course, the opposite happens when you treat incompletely with antibiotics (i.e. stop taking them early). In that case our thinking is that the immune system is unlikely to kill all the remaining bacteria, increasing the chance resistant bacteria will survive.
Host range relationships and the evolution of ... [Vet Microbiol. 1999] - PubMed - NCBI - 0 views
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Review Journal Article for Presentation
Battling with bugs to prevent antibiotic resistance - 0 views
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Research and statistical analysis has proven that the evolution of antibiotic resistance increases as the potency of the treatments becomes more intensive.
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