title: Novel chemotaxonomic markers of the Alternaria infectoria species-group.
abstract: 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 1D 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.
authors.affiliation: Center for Microbial Biotechnology, BioCentrum-DTU, Søltofts Plads, Building 221, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
authors.forename: Kathrine B
authors.initials: KB
authors.lastname: Christensen
authors.forename: John W
authors.initials: JW
authors.lastname: Van Klink
authors.forename: Rex T
authors.initials: RT
authors.lastname: Weavers
authors.forename: Thomas O
authors.initials: TO
authors.lastname: Larsen
authors.forename: Birgitte
authors.initials: B
authors.lastname: Andersen
authors.forename: Richard K
authors.initials: RK
authors.lastname: Phipps
mesh_terms: D000528:Alternaria / Q000737:chemistry* / Q000145:classification* / Q000378:metabolism; D015415:Biomarkers / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D005516:Food Microbiology; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry
chemical_list: D015415:Biomarkers