Open AccessAlcohol‐based quorum sensing plays a role in adhesion and sliding motility of the yeast D ebaryomyces hansenii
Author(s) -
Gori Klaus,
Knudsen Peter B.,
Nielsen Kristian F.,
Arneborg Nils,
Jespersen Lene
Publication year - 2011
Publication title -
fems yeast research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 92
eISSN - 1567-1364
pISSN - 1567-1356
DOI - 10.1111/j.1567-1364.2011.00755.x
Subject(s) - debaryomyces hansenii , tyrosol , yeast , farnesol , biology , biochemistry , saccharomyces cerevisiae , quorum sensing , microbiology and biotechnology , phenols , virulence , gene
The yeast D ebaryomyces hansenii was investigated for its production of alcohol‐based quorum sensing (QS) molecules including the aromatic alcohols phenylethanol, tyrosol, tryptophol and the aliphatic alcohol farnesol. D ebaryomyces hansenii produced phenylethanol and tyrosol, which were primarily detected from the end of exponential phase indicating that they are potential QS molecules in D . hansenii as previously shown for other yeast species. Yields of phenylethanol and tyrosol produced by D . hansenii were, however, lower than those produced by C andida albicans and S accharomyces cerevisiae and varied with growth conditions such as the availability of aromatic amino acids, ammonium sulphate, NaCl , p H and temperature. Tryptophol was only produced in the presence of tryptophane, whereas farnesol in general was not detectable. Especially, the type strain of D . hansenii ( CBS 767) had good adhesion and sliding motility abilities, which seemed to be related to a higher hydrophobicity of the cell surface of D . hansenii ( CBS 767) rather than the ability to form pseudomycelium. Addition of phenylethanol, tyrosol, tryptophol and farnesol was found to influence both adhesion and sliding motility of D . hansenii .