Isolation and structure elucidation of isoaltenuene, a new metabolite of Alternaria alternata (Articolo in rivista)

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Label
  • Isolation and structure elucidation of isoaltenuene, a new metabolite of Alternaria alternata (Articolo in rivista) (literal)
Anno
  • 1989-01-01T00:00:00+01:00 (literal)
Alternative label
  • Visconti A., A. Bottalico, M. Solfrizzo and F. Palmisano (1989)
    Isolation and structure elucidation of isoaltenuene, a new metabolite of Alternaria alternata
    in Mycotoxin research; Hans W. Schmidt, Mainz (Germania)
    (literal)
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  • Visconti A., A. Bottalico, M. Solfrizzo and F. Palmisano (literal)
Pagina inizio
  • 69 (literal)
Pagina fine
  • 76 (literal)
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  • 5 (literal)
Rivista
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  • 7 (literal)
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  • ISTITUTO DI SCIENZE DELLE PRODUZIONI ALIMENTARI UNIVERSITA' DEGLI STUDI DI BARI (literal)
Titolo
  • Isolation and structure elucidation of isoaltenuene, a new metabolite of Alternaria alternata (literal)
Abstract
  • Isoaltenuene, a previously unknown Alternaria metabolite has been isolated from a rice culture ofAlternaria alternata and purified by semipreparative HPLC. The assigned structure, elucidated by UV, IR, MS, and NMR spectroscopy, was 2?, 3?, 4?, 5?-tetrahydro-3, 4??, 5'?-trihydroxy-5-methoxy-2??-methyldibenzo (?)-pyrone and corresponded to a diasteroisomer of altenuene with inverted configuration at C-2?. Isoaltenuene showed a minor phytotoxic activity on tomato leaves at level of 20 ?g/spot and no antifungal activity onGeotrichum candidum (up to 20 ?g/disk). (literal)
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