Secondary metabolite profiling of Alternaria dauci, A. porri, A. solani, and A. tomatophila

Birgitte Andersen, Anita Dongo, Barry M. Pryor

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Chemotaxonomy (secondary metabolite profiling) has been shown to be of great value in the classification and differentiation in Ascomycota. However, few studies have investigated the use of metabolite production for classification and identification purposes of plant pathogenic Alternaria species. The purpose of the present study was to describe the methodology behind metabolite profiling in chemotaxonomy using A. dauci, A. porri, A. solani, and A. tomatophila strains as examples of the group. The results confirmed that A. dauci, A. solani, and A. tomatophila are three distinct species each with their own specific metabolite profiles, and that A. solani and A. tomatophila both produce altersolanol A, altertoxin 1, and macrosporin. By using automated chemical image analysis and other multivariate statistic analyses, three sets of species-specific metabolites could be selected, one each for A. dauci, A. solani, and A. tomatophila.
    Original languageEnglish
    JournalMycological Research
    Volume112
    Issue number2
    Pages (from-to)241-250
    ISSN0953-7562
    DOIs
    Publication statusPublished - 2008

    Keywords

    • multivariate statistics
    • chemical image analysis
    • chemosystematics
    • taxonomy

    Cite this