Metabolite production by differnt Ulocladium species

Birgitte Andersen, Morten Hollensted

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Ulocladium, which is phylogenetically related to Alternaria, contains species that are food spoilers and plant pathogens, but also species that have potential as enzyme producers and bio-control agents. Ulocladium spp. are often found on dead vegetation, in soil, air and dust, but also on food and feedstuffs and on water-damaged building materials. The aim was to study the morphological and chemical diversity within the genus Ulocladium. Cultures of 52 Ulocladium strains were identified morphologically, and then extracted and analyzed using automated Chemical Image Analysis. Production of individual metabolites was correlated to species identity and source of isolation (substratum). Chemical analyses corroborated the morphological identifications and showed the existence of several species species-specific metabolites, of which most were known Compounds. The production of curvularins was specific to Ulocladium atrum, while most species produced infectopyrones and derivatives of altertoxin I. None of the 52 Ulocladium strains produced alternariols, tenuazonic acid, altersolanols or macrosporin, which are common in species of Alternaria. (c) 2008 Elsevier B.V. All rights reserved
    Original languageEnglish
    JournalInternational Journal of Food Microbiology
    Volume126
    Issue number1-2
    Pages (from-to)172-179
    ISSN0168-1605
    DOIs
    Publication statusPublished - 2008

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