Add time:08/18/2019         Source:sciencedirect.com

A new antifungal substance against rice blast fungus (Pyricularia oryzae), 5-(8′Z-heptadecenyl)resorcinol, was isolated from etiolated rice seedlings together with a mixture of its homologues with C13, C15, and C17 saturated alkyl chains. Its structure was determined by 1NMR, 13C-NMR, and MS spectra. Its ED50 was ca 40μg/ml. These 5-alkylresorcinols were newly produced after germination and the concentration reached 50 μg g−1 fresh weight on day 6.

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