Cellulase Applied to the Leaves of Sweet Pepper (<i>Capsicum annuum</i>L. var.<i>grossum</i>) Upregulates the Production of Salicylic and Azelaic Acids

  • SATO Chizuru
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University
  • OKA Norikuni
    National Agricultural Research Center for Hokkaido Region
  • NABETA Kensuke
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University
  • MATSUURA Hideyuki
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University

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  • Cellulase Applied to the Leaves of Sweet Pepper (Capsicum annuum L. var. grossum) Upregulates the Production of Salicylic and Azelaic Acids

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Treating the leaves of sweet pepper (Capsicum annuum L. var. grossum) with an aqueous solution of cellulase resulted in a four-fold increase in the salicylic acid level compared to a control plant. The level of endogenous azelaic acid was also elevated by the cellulase treatment. Azelaic acid has recently been reported to act as a mobile “priming” agent to arm plants against pathogenic attack. Our results are consistent with this and that the cellulase treatment enhanced the ability of sweet pepper to withstand viral attack.

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