Biogenic secondary organic aerosol participates in plant interactions and herbivory defense

• 成果类型: Article
• 署名作者: Yu, Hao; Buchholz, Angela; Pullinen, Iida; Saarela, Silja; Li, Zijun; Virtanen, Annele; Blande, James D.
• 署名单位: University of Eastern Finland; University of Eastern Finland; University of Bern; University of Technology Sydney; Queensland University of Technology (QUT)
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13222
• DOI: 10.1126/science.ado6779
• 发表日期: 2024-09-13
• 页码: 1225-+
• 关键词: pine weevil; volatiles; chemistry; boreal; damage

摘要

Biogenic secondary organic aerosols (SOAs) can be formed from the oxidation of plant volatiles in the atmosphere. Herbivore-induced plant volatiles (HIPVs) can elicit plant defenses, but whether such ecological functions persist after they form SOAs was previously unknown. Here we show that Scots pine seedlings damaged by large pine weevils feeding on their roots release HIPVs that trigger defenses in neighboring conspecific plants. The biological activity persisted after HIPVs had been oxidized to form SOAs, which was indicated by receivers displaying enhanced photosynthesis, primed volatile defenses, and reduced weevil damage. The elemental composition and quantity of SOAs likely determines their biological functions. This work demonstrates that plant-derived SOAs can mediate interactions between plants, highlighting their ecological significance in ecosystems.