Short-term volume and turgor regulation in yeast

Essays Biochem. 2008;45:147-59. doi: 10.1042/BSE0450147.


Volume is a highly regulated property of cells, because it critically affects intracellular concentration. In the present chapter, we focus on the short-term volume regulation in yeast as a consequence of a shift in extracellular osmotic conditions. We review a basic thermodynamic framework to model volume and solute flows. In addition, we try to select a model for turgor, which is an important hydrodynamic property, especially in walled cells. Finally, we demonstrate the validity of the presented approach by fitting the dynamic model to a time course of volume change upon osmotic shock in yeast.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Models, Biological
  • Pressure
  • Rheology
  • Saccharomyces cerevisiae / cytology*
  • Time Factors