Potentiation of phytoalexin accumulation in elicitor-treated epicotyls of pea (Pisum sativum) by a diacylglycerol kinase inhibitor

被引：18

作者：

Toyoda, K ^{[1
]}

Kawahara, T ^{[1
]}

Ichinose, Y ^{[1
]}

Yamada, T ^{[1
]}

Shiraishi, T ^{[1
]}

机构：

[1] Okayama Univ, Fac Agr, Lab Plant Pathol & Genet Engn, Okayama 7008350, Japan

来源：

JOURNAL OF PHYTOPATHOLOGY | 2000年 / 148卷 / 11-12期

关键词：

diacylglycerol kinase; elicitor; pea (Pisum sativum); phyoalexin; R59022;

D O I：

10.1046/j.1439-0434.2000.00568.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

When epicotyl tissues of pea were treated with a diacylglycerol (DAG) kinase inhibitor (R59022), enhanced induction of the phytoalexin accumulation occurred which was induced by fungal elicitor. The marked induction was associated with a sustained accumulation of phenylalanine ammonia-lyase (PAL)-mRNA and the consequent increase in PAL activity. These results suggest that inhibition of DAG breakdown leads to increased induction of phytoalexin accumulation and support the hypothesis that DAG kinase negatively regulates the signal transduction.

引用

页码：633 / 636

页数：4

共 8 条

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