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- Title
Characterization of plant immunity-activating mechanism by a pyrazole derivative.
- Authors
Kusajima, Miyuki; Fujita, Moeka; Yamakawa, Hiromoto; Ushiwatari, Tsukasa; Mori, Takamasa; Tsukamoto, Kazuki; Hayashi, Hiroshi; Maruyama-Nakashita, Akiko; Che, Fang-Sik; Nakashita, Hideo
- Abstract
A newly identified chemical, 4-{3-[(3,5-dichloro-2-hydroxybenzylidene)amino]propyl}-4,5-dihydro-1H-pyrazol-5-one (BAPP) was characterized as a plant immunity activator. BAPP enhanced disease resistance in rice against rice blast disease and expression of a defense-related gene without growth inhibition. Moreover, BAPP was able to enhance disease resistance in dicotyledonous tomato and Arabidopsis plants against bacterial pathogen without growth inhibition, suggesting that BAPP could be a candidate as an effective plant activator. Analysis using Arabidopsis sid2-1 and npr1-2 mutants suggested that BAPP induced systemic acquired resistance (SAR) by stimulating between salicylic acid biosynthesis and NPR1, the SA receptor protein, in the SAR signaling pathway. BAPP enhanced disease resistance in rice against rice blast disease. Moreover, BAPP was able to enhance disease resistance in dicotyledonous tomato and Arabidopsis.
- Subjects
PYRAZOLE derivatives; RICE blast disease; JASMONIC acid; DISEASE resistance of plants; PROTEIN receptors; SALICYLIC acid
- Publication
Bioscience, Biotechnology & Biochemistry, 2020, Vol 84, Issue 7, p1427
- ISSN
0916-8451
- Publication type
Article
- DOI
10.1080/09168451.2020.1750341