Jasmonic acid and salicylic acid induce accumulation of β-1,3-glucanase and thaumatin-like proteins in wheat and enhance resistance against Stagonospora nodorum

J. Jayaraj, S. Muthukrishnan, G. H. Liang, R. Velazhahan

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The effect of application of jasmonic acid (JA) and salicylic acid (SA) on the induction of resistance in wheat to Stagonospora nodorum and on the induction of μ-1,3-glucanase and thaumatin-like proteins (TLPs) was studied. Western blot analysis revealed that two β-1,3-glucanases with apparent molecular masses of 31 and 33 kDa that cross-reacted with a barley glucanase antiserum were induced in wheat leaves after treatment with JA and SA. When wheat plants were treated with SA and JA, a TLP with an apparent molecular mass of 25 kDa and several other isoforms of TLP were induced. Pre-treatment of wheat plants with SA and JA significantly reduced (up to 56 %) the incidence of leaf blotch disease incited by S. nodorum compared with untreated control plants.

Original languageEnglish
Pages (from-to)425-430
Number of pages6
JournalBiologia Plantarum
Issue number3
Publication statusPublished - 2004



  • leaf blotch disease
  • pathogenesis-related protein
  • systemic acquired resistance
  • Triticum aestivum

ASJC Scopus subject areas

  • Plant Science
  • Horticulture

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