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 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 language | English |
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Journal | Journal of Agricultural and Food Chemistry |
Volume | 53 |
Issue number | 24 |
Pages (from-to) | 9431-9435 |
ISSN | 0021-8561 |
Publication status | Published - 2005 |
Keywords
- Alternaria
- infectopyrone
- phytotoxin
- alpha-pyrone
- novae-zelandin
- chemotaxonomy