Sakuranetin, a flavanone phytoalexin from ultraviolet-irradiated rice leaves

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書誌事項

公開日
1992-01
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
DOI
  • 10.1016/s0031-9422(00)97532-0
公開者
Elsevier BV

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説明

Abstract A new rice phytoalexin, sakuranetin (5,4′-dihydroxy-7-methoxyflavanone) was isolated from ultraviolet-irradiated rice leaves. The ED 50 value of sakuranetin against spore germination of Pyricularia oryzae was approximately 15 ppm. A marked incorporation of [ 14C ]phenylalanine into sakuranetin was observed in ultraviolet-irradiated rice leaves. Sakuranetin has also been observed in blast-infected rice leaves and the content in a resistant cultivar after infection with P. oryzae was much higher than in a susceptible cultivar.

収録刊行物

  • Phytochemistry

    Phytochemistry 31 (11), 3807-3809, 1992-01

    Elsevier BV

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