The BaeSR two-component regulatory system mediates resistance to condensed tannins in Escherichia coli

E.G. Zoetendal, A.H. Smith, M.A. Sundset, R.I. Mackie

Research output: Contribution to journalArticleAcademicpeer-review

30 Citations (Scopus)

Abstract

The gene expression profiles of Escherichia coli strains grown anaerobically with or without Acacia mearnsii (black wattle) extract were compared to identify tannin resistance strategies. The cell envelope stress protein gene spy and the multidrug transporter-encoding operon mdtABCD, both under the control of the BaeSR two-component regulatory system, were significantly up-regulated in the presence of tannins. BaeSR mutants were more tannin sensitive than their wild-type counterparts.
Original languageEnglish
Pages (from-to)535-539
JournalApplied and Environmental Microbiology
Volume74
Issue number2
DOIs
Publication statusPublished - 2008

Keywords

  • lotus-corniculatus
  • chromosomal genes
  • stress-response
  • bacteria
  • rumen
  • expression
  • growth
  • tract
  • sheep
  • k-12

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