ORYZALEXIN-F, A DITERPENE PHYTOALEXIN FROM UV-IRRADIATED RICE LEAVES

被引:93
作者
KATO, H [1 ]
KODAMA, O [1 ]
AKATSUKA, T [1 ]
机构
[1] IBARAKI UNIV,SCH AGR,BIOORGAN & PESTICIDE CHEM LAB,IBARAKI,OSAKA 30003,JAPAN
关键词
PYRICULARIA ORYZAE; GRAMINEAE; RICE PHYTOALEXIN; ORYZALEXIN F; DITERPENE; UV-IRRADIATION; JASMONIC ACID;
D O I
10.1016/S0031-9422(00)97064-X
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A new rice phytoalexin, oryzalexin F, was isolated from UV-irradiated rice leaves. Its structure was established as ent-isopimara-8(14),15-diene-3 beta,18-diol by spectroscopic methods. The ED(50) value of oryzalexin F against spore germination of the blast fungus, Pyricularia oryzae, was 103 ppm. Oryzalexin F was also produced in blast fungus-infected or jasmonic acid-treated rice leaves.
引用
收藏
页码:299 / 301
页数:3
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