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Receptor-Mediated MAP Kinase Activation in Plant Defense

  • Heribert Hirt
  • Dierk Scheel
Part of the Results and Problems in Cell Differentiation book series (RESULTS, volume 27)

Summary

Plants mount a complex array of defense reactions in response to attack by pathogens. Initiation of these events depends on perception and signal transduction of elicitors, which are plant-derived or pathogenderived signals, that give rise to transcriptional activation of defense-related genes as well as to changes in activities of enzymes involved in cell wall reinforcement and oxygen radical formation. An oligopeptide, identified within a 42 kDa glycoprotein elicitor from Phythophthora sojae, activates in parsley cells typical plant defense reactions, enabling researchers to study plant-pathogen interaction at the single cell level. The oligopeptide elicitor was found to be necessary and sufficient to stimulate a complex defense response in parsley cells, comprising H+/Ca2+ influxes, K+/Cl- effluxes, activation of a mitogen-activated protein (MAP) kinase, an oxidative burst, defense-related gene activation, and phytoalexin formation.

Keywords

Oxidative Burst Avirulence Gene Nonhost Resistance Petroselinum Crispum Signal Transduction Chain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Heribert Hirt
    • 1
  • Dierk Scheel
    • 2
  1. 1.Institute of Microbiology und GeneticsWienAustria
  2. 2.Institute of Plant BiochemistryHalle/ SaaleGermany

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