News tagged with escherichia coli

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How E. coli cells work in the human gut

(Phys.org) -- The bacterium Escherichia coli, commonly known as E. coli, has a duplicitous reputation. Scientists tell us that most strains of the microbe live peacefully in our guts or the guts of other mammals, munching ...

dateJul 25, 2012 in Biochemistry
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A new weapon in the war against superbugs

In the arms race between bacteria and modern medicine, bacteria have gained an edge. In recent decades, bacterial resistance to antibiotics has developed faster than the production of new antibiotics, making bacterial infections ...

dateDec 02, 2013 in Cell & Microbiology
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Mutations: When benefits level off

Beneficial mutations within a bacterial population accumulate during evolution, but performance tends to reach a plateau. Consequently, theoretical evolutionary models need to take into account a "braking effect" in expected ...

dateJun 08, 2011 in Evolution
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