News tagged with escherichia coli

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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 ...

Apr 01, 2011
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Bacteria poison themselves from within

(PhysOrg.com) -- 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 ...

Mar 23, 2011
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CO2 exacerbates oxygen toxicity

French research team at the Laboratoire de Chimie Bacterienne has demonstrated that carbon dioxide (CO2) plays a role in the formation of oxidative damage in vivo. Under conditions of oxidative stress, certain types of damage ( ...

Mar 02, 2011
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Copycat protein finds a perfect match

As proteins are synthesized during messenger RNA translation, fresh amino acids are delivered to the ribosome of the cell by nucleic acid molecules known as transfer RNAs (tRNAs). Each amino acid has a cognate ...

Nov 19, 2010
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Frugal microbes reduce the cost of proteins

Bacteria tend to be more frugal when constructing proteins for use outside of the cell versus internally, saving their energy for synthesizing compounds that can be recycled, according to research published in the current ...

Sep 01, 2010
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