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Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions

[Image: see text] One barrier to predicting biogenic secondary organic aerosol (SOA) formation in a changing climate can be attributed to the complex nature of plant volatile emissions. Plant volatile emissions are dynamic over space and time, and change in response to environmental stressors. This...

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Autores principales: Faiola, Celia L., Pullinen, Iida, Buchholz, Angela, Khalaj, Farzaneh, Ylisirniö, Arttu, Kari, Eetu, Miettinen, Pasi, Holopainen, Jarmo K., Kivimäenpää, Minna, Schobesberger, Siegfried, Yli-Juuti, Taina, Virtanen, Annele
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6757509/
https://www.ncbi.nlm.nih.gov/pubmed/31565682
http://dx.doi.org/10.1021/acsearthspacechem.9b00118
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author Faiola, Celia L.
Pullinen, Iida
Buchholz, Angela
Khalaj, Farzaneh
Ylisirniö, Arttu
Kari, Eetu
Miettinen, Pasi
Holopainen, Jarmo K.
Kivimäenpää, Minna
Schobesberger, Siegfried
Yli-Juuti, Taina
Virtanen, Annele
author_facet Faiola, Celia L.
Pullinen, Iida
Buchholz, Angela
Khalaj, Farzaneh
Ylisirniö, Arttu
Kari, Eetu
Miettinen, Pasi
Holopainen, Jarmo K.
Kivimäenpää, Minna
Schobesberger, Siegfried
Yli-Juuti, Taina
Virtanen, Annele
author_sort Faiola, Celia L.
collection PubMed
description [Image: see text] One barrier to predicting biogenic secondary organic aerosol (SOA) formation in a changing climate can be attributed to the complex nature of plant volatile emissions. Plant volatile emissions are dynamic over space and time, and change in response to environmental stressors. This study investigated SOA production from emissions of healthy and aphid-stressed Scots pine saplings via dark ozonolysis and photooxidation chemistry. Laboratory experiments using a batch reaction chamber were used to investigate SOA production from different plant volatile mixtures. The volatile mixture from healthy plants included monoterpenes, aromatics, and a small amount of sesquiterpenes. The biggest change in the volatile mixture for aphid-stressed plants was a large increase (from 1.4 to 7.9 ppb) in sesquiterpenes—particularly acyclic sesquiterpenes, such as the farnesene isomers. Acyclic sesquiterpenes had different effects on SOA production depending on the chemical mechanism. Farnesenes suppressed SOA formation from ozonolysis with a 9.7–14.6% SOA mass yield from healthy plant emissions and a 6.9–10.4% SOA mass yield from aphid-stressed plant emissions. Ozonolysis of volatile mixtures containing more farnesenes promoted fragmentation reactions, which produced higher volatility oxidation products. In contrast, plant volatile mixtures containing more farnesenes did not appreciably change SOA production from photooxidation. SOA mass yields ranged from 10.8 to 23.2% from healthy plant emissions and 17.8–26.8% for aphid-stressed plant emissions. This study highlights the potential importance of acyclic terpene chemistry in a future climate regime with an increased presence of plant stress volatiles.
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spelling pubmed-67575092019-09-26 Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions Faiola, Celia L. Pullinen, Iida Buchholz, Angela Khalaj, Farzaneh Ylisirniö, Arttu Kari, Eetu Miettinen, Pasi Holopainen, Jarmo K. Kivimäenpää, Minna Schobesberger, Siegfried Yli-Juuti, Taina Virtanen, Annele ACS Earth Space Chem [Image: see text] One barrier to predicting biogenic secondary organic aerosol (SOA) formation in a changing climate can be attributed to the complex nature of plant volatile emissions. Plant volatile emissions are dynamic over space and time, and change in response to environmental stressors. This study investigated SOA production from emissions of healthy and aphid-stressed Scots pine saplings via dark ozonolysis and photooxidation chemistry. Laboratory experiments using a batch reaction chamber were used to investigate SOA production from different plant volatile mixtures. The volatile mixture from healthy plants included monoterpenes, aromatics, and a small amount of sesquiterpenes. The biggest change in the volatile mixture for aphid-stressed plants was a large increase (from 1.4 to 7.9 ppb) in sesquiterpenes—particularly acyclic sesquiterpenes, such as the farnesene isomers. Acyclic sesquiterpenes had different effects on SOA production depending on the chemical mechanism. Farnesenes suppressed SOA formation from ozonolysis with a 9.7–14.6% SOA mass yield from healthy plant emissions and a 6.9–10.4% SOA mass yield from aphid-stressed plant emissions. Ozonolysis of volatile mixtures containing more farnesenes promoted fragmentation reactions, which produced higher volatility oxidation products. In contrast, plant volatile mixtures containing more farnesenes did not appreciably change SOA production from photooxidation. SOA mass yields ranged from 10.8 to 23.2% from healthy plant emissions and 17.8–26.8% for aphid-stressed plant emissions. This study highlights the potential importance of acyclic terpene chemistry in a future climate regime with an increased presence of plant stress volatiles. American Chemical Society 2019-08-14 2019-09-19 /pmc/articles/PMC6757509/ /pubmed/31565682 http://dx.doi.org/10.1021/acsearthspacechem.9b00118 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Faiola, Celia L.
Pullinen, Iida
Buchholz, Angela
Khalaj, Farzaneh
Ylisirniö, Arttu
Kari, Eetu
Miettinen, Pasi
Holopainen, Jarmo K.
Kivimäenpää, Minna
Schobesberger, Siegfried
Yli-Juuti, Taina
Virtanen, Annele
Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions
title Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions
title_full Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions
title_fullStr Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions
title_full_unstemmed Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions
title_short Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions
title_sort secondary organic aerosol formation from healthy and aphid-stressed scots pine emissions
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6757509/
https://www.ncbi.nlm.nih.gov/pubmed/31565682
http://dx.doi.org/10.1021/acsearthspacechem.9b00118
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