Pyrazolecarboxylic acid derivative induces systemic acquired resistance in tobacco

被引：19
|
作者：
Yasuda, M
Nishioka, M
Nakashita, H
Yamaguchi, I
Yoshida, S
机构：
[1] RIKEN, Plant Funct Lab, Wako, Saitama 3510198, Japan
[2] Nissan Chem Ind Co Ltd, Biol Res Labs, Minami Saitama, Saitama 3490294, Japan
[3] RIKEN, Plant Sci Ctr, Lab Growth Regulat, Tsurumi Ku, Yokohama, Kanagawa 2300045, Japan
[4] RIKEN, Microbial Toxicol Lab, Wako, Saitama 3510198, Japan
[5] Saitama Univ, Grad Sch Sci & Engn, Saitama 3388570, Japan
来源：
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY | 2003年 / 67卷 / 12期
关键词：
Nicotiana tabacum; salicylic acid; systemic acquired resistance; pathogenesis-related gene; Pseudomonas syringae pv. tabaci;
D O I：
10.1271/bbb.67.2614
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Systemic acquired resistance (SAR) is a potent innate immunity system in plants that is induced through a salicylic 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.
引用
收藏
页码：2614 / 2620
页数：7
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