Indole derivatives enhance resistance against the rice blast fungus Magnaporthe oryzae

被引：9

作者：

Ueno, Makoto ^{[1
]}

Kumura, Yumiko ^{[1
]}

Ueda, Kana ^{[1
]}

Kihara, Junichi ^{[1
]}

Arase, Sakae ^{[1
]}

机构：

[1] Shimane Univ, Plant Pathol Lab, Fac Life & Environm Sci, Matsue, Shimane 6908504, Japan

来源：

JOURNAL OF GENERAL PLANT PATHOLOGY | 2011年 / 77卷 / 03期

关键词：

Magnaporthe oryzae; Indole derivatives; Resistance; Antifungal activity; Rice; TRYPTOPHAN DECARBOXYLASE; TRYPTAMINE; LIGHT; ACCUMULATION; GRISEA; LEAVES; PLANTS;

D O I：

10.1007/s10327-011-0300-7

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

In leaves pretreated with an indole derivative [indole-3-acetic acid (IAA) tryptamine, or tryptophan], blast lesion formation was suppressed compared to those treated with distilled water (DW) as a control. Phenylalanine ammonia-lyase (PAL) activity and PAL expression were significantly enhanced in the IAA- or tryptophan-pretreated leaves, but not in tryptamine-pretreated leaves. This induction of resistance was inhibited by pretreatment with a PAL inhibitor, alpha-aminooxyacetic acid, in IAA- and in tryptophan-treated leaves, but not in tryptamine-treated leaves. This study strongly shows that the indole derivatives IAA tryptamine and tryptophan can enhance a disease resistance mechanism that is supported by different metabolic pathways.

引用

页码：209 / 213

页数：5

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