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  Cryptogamic organisms are a substantial source and sink for volatile organic compounds in the Amazon region

Edtbauer, A., Pfannerstill, E. Y., Pires Florentino, A. P., Barbosa, C. G. G., Rodriguez-Caballero, E., Zannoni, N., et al. (2021). Cryptogamic organisms are a substantial source and sink for volatile organic compounds in the Amazon region. Communications Earth & Environment, 2: 258. doi:10.1038/s43247-021-00328-y.

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 Creators:
Edtbauer, Achim1, Author              
Pfannerstill, Eva Y.1, Author              
Pires Florentino, Ana Paula2, Author              
Barbosa, Cybelli G. G.2, Author              
Rodriguez-Caballero, Emilio, Author
Zannoni, Nora1, Author              
Alves, Rodrigo P., Author
Wolff, Stefan2, Author              
Tsokankunku, Anywhere1, Author              
Aptroot, André, Author
de Sá, Marta Oliveira, Author
de Araújo, Alessandro C., Author
Sörgel, Matthias1, Author              
de Oliveira, Sylvia Mota, Author
Weber, Bettina2, Author              
Williams, Jonathan1, Author              
Affiliations:
1Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826285              
2Multiphase Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826290              

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 Abstract: Cryptogamic organisms such as bryophytes and lichens cover most surfaces within tropical forests, yet their impact on the emission of biogenic volatile organic compounds is unknown. These compounds can strongly influence atmospheric oxidant levels as well as secondary organic aerosol concentrations, and forest canopy leaves have been considered the dominant source of these emissions. Here we present cuvette flux measurements, made in the Amazon rainforest between 2016–2018, and show that common bryophytes emit large quantities of highly reactive sesquiterpenoids and that widespread lichens strongly uptake atmospheric oxidation products. A spatial upscaling approach revealed that cryptogamic organisms emit sesquiterpenoids in quantities comparable to current canopy attributed estimates, and take up atmospheric oxidation products at rates comparable to hydroxyl radical chemistry. We conclude that cryptogamic organisms play an important and hitherto overlooked role in atmospheric chemistry above and within tropical rainforests.

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Language(s): eng - English
 Dates: 2021-12-21
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1038/s43247-021-00328-y
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Title: Communications Earth & Environment
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 2 Sequence Number: 258 Start / End Page: - Identifier: ISSN: 2662-4435
CoNE: https://pure.mpg.de/cone/journals/resource/2662-4435