The phytohormone ethylene is a principal modulator in many aspects of plant life, including various mechanisms by which plants react to pathogen attack. Induced ethylene biosynthesis and subsequent intracellular signaling through a single conserved pathway have been well characterized. This leads to a cascade of transcription factors consisting of primary EIN3-like regulators and downstream ERF-like transcription factors. The latter control the expression of various effector genes involved in various aspects of systemic induced defense responses. Moreover, at this level significant cross-talk occurs with other defense response pathways controlled by salicylic acid and jasmonate, eventually resulting in a differentiated disease response.

中文翻译：

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乙烯在宿主-病原体相互作用中的作用。

植物激素乙烯是植物生命许多方面的主要调节剂，包括植物对病原体侵袭作出反应的各种机制。诱导的乙烯生物合成和随后的通过单个保守途径的细胞内信号传导已经被很好地表征。这导致由一级EIN3样调节子和下游ERF样转录因子组成的一系列转录因子。后者控制涉及系统诱导的防御反应的各个方面的各种效应子基因的表达。而且，在这个水平上，与其他由水杨酸和茉莉酸控制的防御反应途径发生了明显的串扰，最终导致了分化的疾病反应。