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

K. Toyoda; T. Kawahara; Y. Ichinose; T. Yamada; T. Shiraishi

doi:10.1046/j.1439-0434.2000.00568.x

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

K. Toyoda, T. Kawahara, Y. Ichinose, T. Yamada, T. Shiraishi

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	633-636
Number of pages	4
Journal	Journal of Phytopathology
Volume	148
Issue number	11-12
DOIs	https://doi.org/10.1046/j.1439-0434.2000.00568.x
Publication status	Published - 2000

Keywords

Diacylglycerol kinase
Elicitor
Pea (Pisum sativum)
Phyoalexin
R59022

ASJC Scopus subject areas

Physiology
Agronomy and Crop Science
Genetics
Plant Science

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10.1046/j.1439-0434.2000.00568.x

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

abstract = "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.",

keywords = "Diacylglycerol kinase, Elicitor, Pea (Pisum sativum), Phyoalexin, R59022",

author = "K. Toyoda and T. Kawahara and Y. Ichinose and T. Yamada and T. Shiraishi",

year = "2000",

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T1 - Potentiation of phytoalexin accumulation in elicitor-treated epicotyls of pea (Pisum sativum) by a diacylglycerol kinase inhibitor

AU - Toyoda, K.

AU - Kawahara, T.

AU - Ichinose, Y.

AU - Yamada, T.

AU - Shiraishi, T.

PY - 2000

Y1 - 2000

N2 - 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.

AB - 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.

KW - Diacylglycerol kinase

KW - Elicitor

KW - Pea (Pisum sativum)

KW - Phyoalexin

KW - R59022

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EP - 636

JO - Journal of Phytopathology

JF - Journal of Phytopathology

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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