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Appl Environ Microbiol. 2003 Dec;69(12):7032-4.

Compatible solutes protect against chaotrope (ethanol)-induced, nonosmotic water stress.

Author information

  • 1Department of Applied Microbial Technology, Sojo University, Kumamoto City, Japan. jehalls@essex.ac.uk

Abstract

Water stress is one of the major stresses experienced by cellular systems and can take a number of distinct forms. In response to turgor-related osmotic stress, cells produce compatible solutes that are macromolecule protectants and also counteract the outflow of water from stressed cells. In this report we show that the germination of conidia of Aspergillus nidulans, a sensitive indicator of water stress, in the presence of ethanol is correlated with the intracellular concentration of the compatible solutes glycerol and erythritol, which protect against both osmotic and nonturgor forms of water stress.

PMID:
14660346
[PubMed - indexed for MEDLINE]
PMCID:
PMC309872
Free PMC Article
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