Novel chemotaxonomic markers of the Alternaria infectoria species-group

K.B. Christensen, J.W. Van Klink, R.T. Weavers, Thomas Ostenfeld Larsen, B. Andersen, R.K. Phipps

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    Two new structurally related metabolites, novae-zelandin A (1) and novae-zelandin B (2), as well as the novel metabolite 4Z-infectopyrone (3) were purified from extracts of filamentous fungi belonging to the Alternaria infectoria species-group. The structures were elucidated by a combination of 1 D and 2D NMR spectroscopic data and MS data. 1-3 are important chemotaxonomic markers of the A. infectoria species-group and exhibit structures similar to those of known biologically active compounds, suggesting that they could be potential phytotoxins.
    Original languageEnglish
    JournalJournal of Agricultural and Food Chemistry
    Issue number24
    Pages (from-to)9431-9435
    Publication statusPublished - 2005


    • Alternaria
    • infectopyrone
    • phytotoxin
    • alpha-pyrone
    • novae-zelandin
    • chemotaxonomy

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