This paper examines induced resistance (SAR) in plants against various insect and pathogenic invaders. SAR confers quantitative protection against a broad spectrum of microorganisms in a manner comparable to immunization in mammals, although the underlying mechanisms differ. Discussed here are the molecular events underlying SAR: the mechanisms involved in SAR, including lignification and other structural barriers, pathogenesis-related proteins and their expression, and the signals for SAR including salicylic acid. Recent findings on the biological role of systemin, ethylene, jasmonates, and electrical signals are reviewed. Chemical activators of SAR comprise inorganic compounds, natural compounds, and synthetic compounds. Plants known to exhibit SAR and induced systemic resistance are listed.

中文翻译：

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全身获得性抵抗。

本文研究了植物对各种昆虫和病原体入侵者的诱导抗性（SAR）。SAR以与哺乳动物免疫相当的方式对多种微生物提供定量保护，尽管其基本机制不同。这里讨论的是SAR的分子事件：参与SAR的机制，包括木质化和其他结构性障碍，与病程相关的蛋白质及其表达，以及包括水杨酸的SAR信号。综述了有关systemin，乙烯，茉莉酸酯和电信号的生物学作用的最新发现。SAR的化学活化剂包括无机化合物，天然化合物和合成化合物。列出了已知表现出SAR和诱导的系统抗性的植物。