Induction of resistance against rice bacterial leaf blight by 3-chloro-1-methyl-1H-pyrazole-5-carboxylic acid
Induction of resistance against rice bacterial leaf blight by 3-chloro-1-methyl-1H-pyrazole-5-carboxylic acid
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DOI：
10.1584/jpestics.30.47
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发表时间：
2005-01-01
影响因子：
2.4
通讯作者：
Yamaguchi, I
中科院分区：
文献类型：
--
作者：
Nishioka, M;Nakashita, H;Yamaguchi, I
吡唑衍生物3-氯-1-甲基-1H-吡唑-5-羧酸（CMPA）对水稻稻瘟病有较强的抑制作用，但没有明显的抗菌活性。研究了CMPA对水稻白叶枯病的作用机制，并测定了CMPA对水稻白叶枯病的防治效果。并检测了一种防御相关基因的表达。CMPA的治疗以剂量依赖的方式减轻疾病症状，但CMPA对X没有表现出任何直接的抗菌活性。浓度高达1毫克/毫升的米。CMPA处理诱导了PBZI的表达，PBZI是一种防御相关基因，由几种植物激活剂诱导。这种诱导PBZI表达和增强抗病性而没有抗微生物活性的能力表明CMPA可以激活水稻以及烟草中的系统获得性抗性。(c)日本农药学会。
A pyrazole derivative, 3-chloro- 1 -methyl- 1H-pyrazole-5 -carboxylic acid (CMPA), exhibited high anti-rice blast activity without any significant antimicrobial activity. To assess the mode of action of CMPA, its effects on rice bacterial leaf blight caused by Xanthomonas oryzae pv. oryzae and the expression of a defenserelated gene were examined. The treatment of CMPA reduced the disease symptoms in a dose-dependent manner, but CMPA did not exhibit any direct antibacterial activity against X. oryzae at concentrations up to I mg/ml. The treatment of CMPA induced the expression of PBZI, a defense-related gene, which is evoked by several plant activators. This ability to induce PBZI expression and enhance disease resistance without antimicrobial activity suggests that CMPA can activate systemic acquired resistance in rice as well as in tobacco. (c) Pesticide Science Society of Japan.