Journal of Plant Research

, Volume 109, Issue 3, pp 253–263 | Cite as

Protein kinases in elicitor signal transduction in plant cells

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Abstract

Plants have the ability to respond to pathogen invasion by specific defense reactions. Components of mammalian signal transduction chains have been identified in plants, and several lines of evidence have implicated such components in elicitor signal transmission in defense responses. In particular, it has been assumed that elicitor signals are transduced via a protein kinase cascade, although the identity of the protein kinases and the function of the phosphorylated proteins remain to be determined. The purpose of this review is to discuss the roles of protein kinases in elicitor signal transduction pathways in plant cells based on recent progress in this field.

Key words

Defense responses Elicitors Hypersensitive response MAP kinase cascades Protein kinases Protein phosphatase Resistance genes Signal transduction 

Abbreviations

avr

gene. avirulence gene

ERK

extracellular signal-regulated kinase

HR

hypersensitive response

IL-1R

interleukin-1 receptor

IRAK

IL-R associated protein kinase

JNK

c-Jun N-teminal kinase

JNKK, JNK

kinase

LRR

leucine-rich repeat

MAPK

mitogen-activated protein kinase

MAPKK

MAPK kinase

MAPKKK

MAPKK kinase

MBP

myelin basic protein

MEK

MAPK and ERK kinase

MEKK1, MEK

kinase 1

MKK4, MAPK

kinase 4

PR

protein, pathogenesisrelated protein

PR5K

PR5-like receptor kinase; pcd, programmed cell death

PGIP

polygalacturonase inhibitor protein

PLA2

phospholipase

A2

R gene, resistance gene

SAPK

stressactivated protein kinase

SEK, SAPK and ERK

kinase

SLG

S-locus glycoprotein

SRK

S-locus receptor kinase

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Copyright information

© The Botanical Society of Japan 1996

Authors and Affiliations

  1. 1.Plant Molecular Biology Laboratory, Molecular Biology DepartmentNational Institute of Bioscience and Human TechnologyTsukubaJapan

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