News tagged with escherichia coli

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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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Bacterial guests double as bodyguards

The bacterium Escherichia coli can be a scientist’s best friend when it’s being used as a tool for biological research, but some strains of it are better known for their nasty effects on humans as a causative agent ...

dateMay 04, 2011 in Cell & Microbiology
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E. coli an unlikely contaminant of plant vascular systems

A technique developed by U.S. Department of Agriculture (USDA) scientists for tracking pathogens has helped confirm that Escherichia coli is not likely to contaminate the internal vascular structure of field-grown leafy greens ...

dateApr 01, 2011 in Other
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Bacteria poison themselves from within

( -- The research group led by Anton Meinhart at the Max Planck Institute for Medical Research in Heidelberg has shown that proteins from the zeta toxin group trigger a self-destructive mechanism in bacteria. ...

dateMar 23, 2011 in Cell & Microbiology
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