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Träfflista för sökning "L773:1553 7404 srt2:(2005-2009);srt2:(2008);pers:(Cerf Bensussan Nadine)"

Search: L773:1553 7404 > (2005-2009) > (2008) > Cerf Bensussan Nadine

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  • Giraud, Antoine, et al. (author)
  • Dissecting the genetic components of adaptation of Escherichia coli to the mouse gut
  • 2008
  • In: PLOS Genetics. - : Public Library of Science (PLoS). - 1553-7390 .- 1553-7404. ; 4:1
  • Journal article (peer-reviewed)abstract
    • While pleiotropic adaptive mutations are thought to be central for evolution, little is known on the downstream molecular effects allowing adaptation to complex ecologically relevant environments. Here we show that Escherichia coli MG1655 adapts rapidly to the intestine of germ-free mice by single point mutations in EnvZ/OmpR two-component signal transduction system, which controls more than 100 genes. The selective advantage conferred by the mutations that modulate EnvZ/OmpR activities was the result of their independent and additive effects on flagellin expression and permeability. These results obtained in vivo thus suggest that global regulators may have evolved to coordinate activities that need to be fine-tuned simultaneously during adaptation to complex environments and that mutations in such regulators permit adjustment of the boundaries of physiological adaptation when switching between two very distinct environments.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Cerf-Bensussan, ... (1)Undo refine
Bambou, Jean-Christo ... (1)
Giraud, Antoine (1)
Rakotobe, Sabine (1)
Taddei, François (1)
Gaboriau-Routhiau, V ... (1)
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De Paepe, Marianne (1)
Arous, Safia (1)
Lindner, Ariel B. (1)
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University
Uppsala University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2008 (1)Undo refine

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