Novel chemotaxonomic markers of the Alternaria infectoria species-group.
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.
Christensen
Kathrine B
KB
Center for Microbial Biotechnology, BioCentrum-DTU, Søltofts Plads, Building 221, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
Van Klink
John W
JW
Weavers
Rex T
RT
Larsen
Thomas O
TO
Andersen
Birgitte
B
Phipps
Richard K
RK
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
D015415:Biomarkers