The plant activator saccharin induces resistance to wheat powdery mildew by activating multiple defense-related genes

Le Thi Phuong, Lei Zhao, Aprilia Nur Fitrianti, Hidenori Matsui, Yoshiteru Noutoshi, Mikihiro Yamamoto, Yuki Ichinose, Tomonori Shiraishi, Kazuhiro Toyoda

Research output: Contribution to journalArticle

Abstract

Saccharin and its parental compound probenazole (PBZ) are plant activators of effective defense responses to (hemi) biotrophic pathogens. Here, we demonstrate that pretreatment of wheat seedlings with saccharin or PBZ results in a significant reduction of powdery mildew caused by Blumeria graminis f. sp. tritici. Transcriptional analysis revealed the expression of 15 defense-related genes including PR genes, WCI genes, LOX, AOS, NPR1, PAL and WRKY genes in wheat seedlings exposed to either saccharin or PBZ. Moreover, the saccharin- and PBZ-enhanced expression of those genes during fungal infection further proved a close correlation with increased resistance in wheat.

Original languageEnglish
Pages (from-to)107-113
Number of pages7
JournalJournal of General Plant Pathology
Volume86
Issue number2
DOIs
Publication statusPublished - Mar 1 2020

Keywords

  • Blumeria graminis f. sp. tritici
  • Induced resistance
  • Plant activator
  • Probenazole (PBZ)
  • Saccharin
  • Wheat

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science

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