Differential expression of tomato proteinase inhibitor I and II genes during bacterial pathogen invasion and wounding.
Differential expression of tomato proteinase inhibitor I and II genes during bacterial pathogen invasion and wounding.
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DOI：
10.1094/mpmi-4-284
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发表时间：
1991-05
期刊：
影响因子：
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通讯作者：
Véronique Pautot;F. Holzer;Linda L. Walling
中科院分区：
文献类型：
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作者：
Véronique Pautot;F. Holzer;Linda L. Walling
蛋白酶抑制剂I和II基因的表达进行了研究感染过程中假单胞菌pv。番茄细菌性斑点病的病原体。用P.s. PV.对病原体具有抗性和敏感性的两个自交番茄品系的番茄导致蛋白酶抑制剂I和II mRNA在该器官中的积累。我们的数据表明，在这项研究中使用的线，蛋白酶抑制剂II mRNA积累在叶片中的水平高于蛋白酶抑制剂I mRNA响应P. s。PV.番茄感染和伤害。蛋白酶抑制剂II的mRNA积累更迅速地在抗病性比在疾病敏感的植物。蛋白酶抑制剂I mRNA首先在感染和创伤期间的疾病易感线中检测到。与创伤相反，这些基因在病原体侵入过程中的系统诱导是有限的。这些数据表明，植物蛋白酶抑制剂构成响应细菌病原体入侵而诱导的植物防御系统的组分之一。
Expression of proteinase inhibitor I and II genes was investigated during infection by Pseudomonas syringae pv. tomato, the causal agent of bacterial speck disease in tomato. Inoculation of leaves with P. s. pv. tomato of two inbred tomato lines that are resistant and susceptible to the pathogen resulted in the accumulation of proteinase inhibitor I and II mRNAs in this organ. Our data showed that in the lines used in this study, proteinase inhibitor II mRNAs accumulated in leaves to higher levels than proteinase inhibitor I mRNA in response to P. s. pv. tomato infection and wounding. Proteinase inhibitor II mRNAs accumulated more rapidly in disease-resistant than in disease-susceptible plants. Proteinase inhibitor I mRNAs were first detected in the disease-susceptible line during infection and wounding. In contrast to wounding, the systemic induction of these genes during pathogen ingression was limited. These data show that the plant proteinase inhibitors constitute one of the components of the plant defense system that are induced in response to bacterial pathogen invasion.