Pyrazolecarboxylic Acid Derivative Induces Systemic Acquired Resistance in Tobacco | Zendy

Michiko Yasuda | Zendy; Masanori Nishioka | Zendy; Hideo Nakashita | Zendy; Isamu Yamaguchi | Zendy; Shigeo Yoshida | Zendy

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Pyrazolecarboxylic Acid Derivative Induces Systemic Acquired Resistance in Tobacco

Author(s) -

Michiko Yasuda,

Masanori Nishioka,

Hideo Nakashita,

Isamu Yamaguchi,

Shigeo Yoshida

Publication year - 2003

Publication title -

bioscience biotechnology and biochemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.509

H-Index - 116

eISSN - 1347-6947

pISSN - 0916-8451

DOI - 10.1271/bbb.67.2614

Subject(s) - systemic acquired resistance , inducer , transgene , chemistry , innate immune system , derivative (finance) , immunity , biology , biochemistry , gene , immunology , immune system , receptor , arabidopsis , mutant , financial economics , economics

Systemic acquired resistance (SAR) is a potent innate immunity system in plants that is induced through asalicylic acid (SA)-mediated pathway. Here, we characterized 3-chloro-1-methyl-1H-pyrazole-5-carboxylic acid (CMPA) as an effective SAR inducer in tobacco. Soil drench application of CMPA induced PR gene expression and a broad range of disease resistance without antibacterial activity in tobacco. Both analysis of CMPA's effects on NahG transgenic tobacco plants and SA measurement in wild-type plants indicated that CMPA-induced resistance enhancement does not require SA. Therefore, it is suggested that CMPA induces SAR by triggering the signaling at the same level as or downstream of SA accumulation as do both benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester and N-cyanomethyl-2-chloroisonicotinamide.

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