Unbound MEDLINE

Mycosporine-glutamicol-glucoside: a natural UV-absorbing secondary metabolite of rock-inhabiting microcolonial fungi.

Abstract

Microcolonial ascomycetes are known to inhabit bare rock surfaces in cold and hot deserts and thus are habitually exposed to high levels of solar radiation. Several of these stress-tolerant fungal isolates, cultivated in the laboratory under daylight illumination, were studied for the presence of effective UV-radiation protection substances. Liquid chromatography/mass spectrometry (LC/MS) and liquid chromatography/tandem mass spectrometry (LC/MS/MS) analyses allowed for efficient separation and structure clarification of two mycosporines. It was demonstrated that both mycosporine-glutamicol-glucoside and mycosporine-glutaminol-glucoside are natural and constitutive secondary metabolites of microcolonial fungi. The function and relation of these substances in the fungal cell are discussed.

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  • Publisher Full Text
  • Authors

    Volkmann M, Whitehead K, Rütters H, Rullkötter J, Gorbushina AA

    Source

    Rapid communications in mass spectrometry : RCM 17:9 2003 pg 897-902

    MeSH

    Ascomycota
    Chromatography, High Pressure Liquid
    Cyclohexanols
    Glucosides
    Glycosides
    Spectrometry, Mass, Electrospray Ionization
    Spectrophotometry, Ultraviolet
    Sunscreening Agents
    Ultraviolet Rays

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    12717761