The plant activator saccharin induces resistance to wheat powdery mildew by activating multiple defense-related genes
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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.
KeywordsBlumeria graminis f. sp. tritici Induced resistance Plant activator Probenazole (PBZ) Saccharin Wheat
LTP thanks the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT) for financial support during her doctoral program. This research was supported in part by the Grants-in-Aid for Scientific Research (18K05645) from the Japan Society for Promotion of Science (JSPS).
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Conflict of interest
The authors declare that they have no conflict of interest.
Research involving human or animals participants
This article does not contain any studies with human participants or animals performed by any of the authors.
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