Skip to main content
Article thumbnail
Location of Repository

Shift-down in growth rate rather than high cell density induces toxic shock syndrome toxin-1 gene expression in Staphylococcus aureus

By B S Timmins and Keith T. Holland


A luciferase-based reporter system for the expression of the toxic shock syndrome toxin-1 gene (tst) of Staphylococcus aureus FRI 1187 was used in continuous culture to determine whether high cell density on transient shift-down or shift-up of specific growth rate (μ) induced expression of tst. Little expression occurred at steady state at a low dilution rate (D) and in a transient period of increasing μ. However, a rapid and approximately 130-fold increase in expression occurred during a transient shift-down of μ. These findings suggest reduction of μ is a key element in the control of tst expressio

Topics: Q1
Publisher: Wiley
Year: 1999
OAI identifier:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.