Methyl jasmonate induces a hypersensitive-like response of grapevine in the absence of avirulent pathogens

Authors

  • V. Repka
  • I. Fischerová
  • K. Šilhárová

DOI:

https://doi.org/10.5073/vitis.2001.40.5-10

Keywords:

Vitis vinifera L., Limberger, elicitor, defense, Western blotting, Northern blotting, salicylic acid, PR-proteins, PR-genes

Abstract

Methyl jasmonate (MeJA), a common plant secondary compound, when applied to the surface of grapevine leaves, caused the formation of lesions that mimic a typical hypersensitive response. Sustained exposure of grapevines to 50 µM MeJA provoked tissue damage, stimulated salicylic acid production, and expression of defense-related genes. Besides these local responses, after several days systemic expression of defense-related genes was induced as well, Thus, grapevine cells that perceived MeJA generated a cascade of events acting at local, short and long distances and causing the coordinated expression of specific defense responses with a timing and magnitude similar to the hypersensitive response against pathogens, MeJA represents a powerful tool to investigate the signals and their respective pathways involved in mechanism of induced disease resistance of grapevine.

 

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Published

2015-04-29

Issue

Vol. 40 No. 1 (2001): Vitis

Section

Article

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