AGRIS

Data provider:

Icon data provider

The University of the Philippines (UP) is the country’s national university. This premier institution of higher learning was established in 1908 and is now a university system composed of eight constituent universities and one autonomous college spread throughout 17 campuses in the archipelago.

活跃 (上一日历年中数据提供者曾提供元数据)
Paper

文献

Biosynthetic study of diterpene and flavone phytoalexins in rice plants  [1994]

Kodama, O.; Kato, H.; Akatsuka, T. (Ibaraki Univ., Ami, Ibaraki 300-03 (Japan). School of Agriculture);

访问全文

  • NOT AVAILABLE
Several diterpene phytoalexins, oryzalexines A, B, C, D, E, and S, and the flavone phytoalexin, sakuranetin, from blast-infected or UV-irradiated rice leaves were isolated and identified. Among these oryzalexins, oryzalexin D (3, 7-dihydroxy-sandaracopimaradiene) and oryzalexin E (3,9-dihydroxy-sandaracopimaradiene) show the highest antifungal activity and were produced from 3-hydroxy-sandaracopimaradiene by inducible cytochrome P-450 dependent monooxygenase(s). The sakuranetin synthesizing enzyme, naringenin 7-0-methyltransferase, was induced in the irradiated rice leaves. Consequently, sakuranetin did accumulate in the rice leaves. Because of the low antifungal activity of the precursors of these phytoalexins, naringenin and 3-hydroxy-sandaracopimaradiene, the conversion of these compounds to active phytoalexins by either cytochrome P-450 dependent monooxygenase(s) or naringenin 7-0-methyltransferase is very important for the dynamic defense mechanisn of the rice plant

书目信息

语言:
English
类型:
Summary
自何时收录于AGRIS:
1995
出版者:
IRRI
所有题名:
"Biosynthetic study of diterpene and flavone phytoalexins in rice plants"@eng
其它:
"Summary only"
"Rice blast disease, Zeigler, R.S.Leong, S.A.Teng, P.S. (eds.).- Los Banos, Laguna (Philippines): IRRI, 1994.- ISBN 0-85198-935-7. p. 602"
Loading...

书目信息

语言:
English
类型:
Summary
自何时收录于AGRIS:
1995
出版者:
IRRI
所有题名:
"Biosynthetic study of diterpene and flavone phytoalexins in rice plants"@eng
其它:
"Summary only"
"Rice blast disease, Zeigler, R.S.Leong, S.A.Teng, P.S. (eds.).- Los Banos, Laguna (Philippines): IRRI, 1994.- ISBN 0-85198-935-7. p. 602"