Strong sesquiterpene emissions from Amazonian soils
| Autor: | Joel Brito, Thomas Behrendt, Elisa Caldeira Pires Catão, Demétrios Martins, Jonathan Williams, Alessandro Araújo, Heidi Hellén, Efstratios Bourtsoukidis, Efstathios Diamantopoulos, Carlos A. Quesada, Marta Sá, Kirsti Ashworth, Paulo Artaxo, Jürgen Kesselmeier, Andrea Pozzer, Ana Maria Yáñez-Serrano, Jos Lelieveld |
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| Přispěvatelé: | Max-Planck-Institut für Chemie (MPIC), Max-Planck-Gesellschaft, Max-Planck-Institut für Biogeochemie (MPI-BGC), Finnish Meteorological Institute (FMI), University of Copenhagen = Københavns Universitet (UCPH), Laboratoire de Météorologie Physique (LaMP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), University of Copenhagen = Københavns Universitet (KU), Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Canopy 010504 meteorology & atmospheric sciences Mass Fragmentography Soil Moisture Rna 16s General Physics and Astronomy Clinical Evaluation 01 natural sciences Isoprenoid Soil Abundance (ecology) Volatile Organic Compound Dry season Spatial Soil Variability lcsh:Science Water content [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Multidisciplinary Amazon rainforest Soil Microorganism Biogeochemical Cycle Ribosome Rna Soil Microflora Environmental chemistry Proton Transfer Reaction Mass Spectrometry Sesquiterpenes Rainforest Field Emission Rna 18s Air-soil Interaction Science Speciation (chemistry) Dry Season General Biochemistry Genetics and Molecular Biology Article Atmosphere Emission 03 medical and health sciences Amazonia Oxidation Ecosystem 0105 earth and related environmental sciences [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Environmental Factor Humidity General Chemistry 15. Life on land Nonhuman Microbial Activity Oxygen 030104 developmental biology Metabolism 13. Climate action Forest Canopy Soil water Rna Transcription Environmental science lcsh:Q Season Prediction |
| Zdroj: | Nature Communications, Vol 9, Iss 1, Pp 1-11 (2018) Repositório Institucional do INPA Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA Nature Communications Nature Communications, 2018, 9, pp.2229. ⟨10.1038/s41467-018-04658-y⟩ Nature Communications, Nature Publishing Group, 2018, 9, pp.2229. ⟨10.1038/s41467-018-04658-y⟩ Bourtsoukidis, E, Behrendt, T, Yañez-Serrano, A M, Hellén, H, Diamantopoulos, E, Catão, E, Ashworth, K, Pozzer, A, Quesada, C A, Martins, D L, Sá, M, Araujo, A, Brito, J, Artaxo, P, Kesselmeier, J, Lelieveld, J & Williams, J 2018, ' Strong sesquiterpene emissions from Amazonian soils ', Nature Communications, vol. 9, 2226 . https://doi.org/10.1038/s41467-018-04658-y |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-018-04658-y⟩ |
| Popis: | The Amazon rainforest is the world’s largest source of reactive volatile isoprenoids to the atmosphere. It is generally assumed that these emissions are products of photosynthetically driven secondary metabolism and released from the rainforest canopy from where they influence the oxidative capacity of the atmosphere. However, recent measurements indicate that further sources of volatiles are present. Here we show that soil microorganisms are a strong, unaccounted source of highly reactive and previously unreported sesquiterpenes (C15H24; SQT). The emission rate and chemical speciation of soil SQTs were determined as a function of soil moisture, oxygen, and rRNA transcript abundance in the laboratory. Based on these results, a model was developed to predict soil–atmosphere SQT fluxes. It was found SQT emissions from a Terra Firme soil in the dry season were in comparable magnitude to current global model canopy emissions, establishing an important ecological connection between soil microbes and atmospherically relevant SQTs. Recent measurements in the Amazon rainforest indicate missing sources of volatile organic compounds (VOCs). Here the authors show that soil microorganisms are a strong, unaccounted source of highly reactive sesquiterpenes, a class of VOCs that can regulate ozone chemistry within the forest canopy. |
| Databáze: | OpenAIRE |
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