AI Article Synopsis
- Biogenic secondary organic aerosols (SOAs) are created when plant volatiles oxidize in the atmosphere, affecting ecological interactions.
- Scots pine seedlings attacked by large pine weevils release herbivore-induced plant volatiles (HIPVs) that activate defense mechanisms in nearby plants.
- These defense responses remain effective even after HIPVs are converted to SOAs, indicating that the composition and amount of SOAs can influence their biological roles in ecosystems.
Article Abstract
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.
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| http://dx.doi.org/10.1126/science.ado6779 | DOI Listing |
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