Journal
PLANT SIGNALING & BEHAVIOR
Volume 12, Issue 3, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15592324.2017.1293222
Keywords
Arabidopsis; Colletotrichum higginsianum; plant activator; PR-1 gene; Pseudomonas syringae; salicylic acid; thienopyrimidine
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Funding
- Cabinet Office, Government of Japan
- Cross-ministerial Strategic Innovation Promotion Program (SIP), Technologies for creating next-generation agriculture, forestry and fisheries
- Bio-oriented Technology Research Advancement Institution, NARO
- Grants-in-Aid for Scientific Research [16K08152] Funding Source: KAKEN
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Plant activators activate systemic acquired resistance-like defense responses or induced systemic resistance, and thus protect plants from pathogens. We screened a chemical library composed of structurally diverse small molecules. We isolated six plant immune-inducing thienopyrimidine-type compounds and their analogous compounds. It was observed that the core structure of thienopyrimidine plays a role in induced resistance in plants. Furthermore, we highlight the protective effect of thienopyrimidine-type compounds against both hemibiotrophic fungal pathogen, Colletotrichum higginsianum, and bacterial pathogen, Pseudomonas syringae pv. maculicola, in Arabidopsis thaliana. We suggest that thienopyrimidine-type compounds could be potential lead compounds as novel plant activators, and can be useful and effective agrochemicals against various plant diseases.
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