Antifungal Chalcones and New Caffeic Acid Esters fromZuccagnia punctataActing against Soybean Infecting Fungi
Authors:
- Alejandro TapiaATAlejandro Tapia
- Silvia N. LópezSLSilvia N. López
- Ricardo L. E. FurlánRFRicardo L. E. Furlán
- Elisa PetenattiEPElisa Petenatti
- Rosanna PioliRPRosanna Pioli
- Guillermo Schmeda-HirschmannGSGuillermo Schmeda-Hirschmann
- Susana A. ZacchinoSZSusana A. Zacchino
- 28 April 2004
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 52 (11) , 3297-3300
Abstract
The crude methanolic extract of Zuccagnia punctata was active toward the fungal pathogens of soybean Phomopsis longicolla and Colletotrichum truncatum. Assay guided fractionation led to the isolation of two chalcones, one flavanone and a new caffeoyl ester derivative as the compounds responsible for the antifungal activity. Another new caffeoyl ester derivative was isolated from the antifungal chloroform extract but proved to be inactive against the soybean infecting fungi up to 50 μg/mL Keywords: Antifungal compounds; soybean; phytopathogenic fungi; Zuccagnia punctataKeywords
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