The Streptomycin-Treated Mouse Intestine Selects Escherichia coli envZ Missense Mutants That Interact with Dense and Diverse Intestinal Microbiota

Abstract excerpt

Previously, we reported that the streptomycin-treated mouse intestine selected nonmotile Escherichia coli MG1655 flhDC deletion mutants of E. coli MG1655 with improved colonizing ability that grow 15% faster in vitro in mouse cecal mucus and 15 to 30% faster on sugars present in mucus (M. P. Leatham et al., Infect. Immun. 73:8039-8049, 2005). Here, we report that the 10 to 20% remaining motile E. coli MG1655 are...

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