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

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

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
Volume48
Issue number3
DOIs
Publication statusPublished - 2004

    Fingerprint

Keywords

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

ASJC Scopus subject areas

  • Plant Science
  • Horticulture

Cite this