Alcohol-based quorum sensing plays a role in adhesion and sliding motility of the yeast Debaryomyces hansenii

Klaus Gori, Peter Boldsen Knudsen, Kristian Fog Nielsen, Nils Arneborg, Lene Jespersen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The yeast Debaryomyces 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. Debaryomyces 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 Candida albicans and Saccharomyces cerevisiae and varied with growth conditions such as the availability of aromatic amino acids, ammonium sulphate, NaCl, pH 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 (CBS767) had good adhesion and sliding motility abilities, which seemed to be related to a higher hydrophobicity of the cell surface of D. hansenii (CBS767) 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. © 2011 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved.
    Original languageEnglish
    JournalF E M S Yeast Research
    Volume11
    Issue number8
    Pages (from-to)643-652
    ISSN1567-1356
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Debaryomyces hansenii
    • Biofilm formation
    • Sliding motility
    • Adhesion
    • Alcohol-based quorum sensing

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