Phytotoxic effects of ozone are described with emphasis on secondary plant metabolism. Numerous ozone-induced genes, enzymes and stress metabolites of antioxidative and phytopathological defense reactions have been discovered for herbaceous plants and forest tree species. Ozone induces reactions normally elicited by viral and microbial pathogens. The molecular basis (receptors, signal chains) for induction by ozone remains to be elucidated. The induced stress reactions seem to change plant predisposition to either enhanced tolerance or susceptibility for a second stressor. The following topics are discussed: ozone and biotic disease, the role of ozone on field sites and ozone limit values.

中文翻译：

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臭氧和植物健康。

描述了臭氧的植物毒性作用，重点是植物的次生代谢。对于草本植物和林木物种，已经发现了许多臭氧诱导的抗氧化和植物病理防御反应的基因，酶和应激代谢产物。臭氧诱导通常由病毒和微生物病原体引起的反应。臭氧诱导的分子基础（受体，信号链）尚待阐明。诱导的胁迫反应似乎将植物的性状改变为对第二胁迫因素的耐受性或敏感性增强。讨论了以下主题：臭氧和生物疾病，臭氧在现场的作用和臭氧极限值。