Journal
BIOLOGIA PLANTARUM
Volume 48, Issue 3, Pages 425-430Publisher
ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
DOI: 10.1023/B:BIOP.0000041097.03177.2d
Keywords
leaf blotch disease; pathogenesis-related protein; systemic acquired resistance; Triticum aestivum
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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 beta-1,3-glucanase and thaumatin-like proteins (TLPs) was studied. Western blot analysis revealed that two beta-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.
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