Croton floribundus (L.) Spreng trees were exposed to accumulated ozone (O₃) levels under laboratory and field conditions and monitored the foliar visible symptoms and BVOC emissions. Plants exposed to O₃ in the laboratory presented more substantial damage and significant increase in the BVOC emissions than plants in the field. Caryophyllene and 3-hexen-1-ol emissions were significantly increased in plants exposed to O₃ in the laboratory. Under field conditions, methyl salicylate (MeSA) was the majority compound emitted. A positive correlation among the meteorological conditions, O₃ and MeSA emission was observed in the field conditions, which may represent a mechanism of tolerance by C. floribundus to deal with long-term exposure to O₃.

在实验室和田间条件下，巴豆（Croton floribundus（L.）Spreng）树暴露于累积的臭氧（O ₃）水平，并监测叶面可见症状和BVOC排放。与田间植物相比，实验室中暴露于O _3的植物造成的危害更大，BVOC排放量显着增加。在实验室中暴露于O _3的植物中石竹烯和3-hexen-1-ol的排放量显着增加。在田间条件下，水杨酸甲酯（MeSA）是排放的大多数化合物。在野外条件下，观测到的气象条件，O ₃和MeSA排放之间存在正相关，这可能代表了花梭菌的耐受性机制。处理长期暴露于O ₃。