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Strong sesquiterpene emissions from Amazonian soils

Author

Listed:
  • E. Bourtsoukidis

    (Max Planck Institute for Chemistry)

  • T. Behrendt

    (Max Planck Institute for Biogeochemistry)

  • A. M. Yañez-Serrano

    (Max Planck Institute for Chemistry
    National Institute of Amazonian Research
    University of Freiburg)

  • H. Hellén

    (Finnish Meteorological Institute)

  • E. Diamantopoulos

    (University of Copenhagen)

  • E. Catão

    (Max Planck Institute for Biogeochemistry)

  • K. Ashworth

    (Lancaster University)

  • A. Pozzer

    (Max Planck Institute for Chemistry)

  • C. A. Quesada

    (National Institute of Amazonian Research)

  • D. L. Martins

    (National Institute of Amazonian Research
    Imperial College London)

  • M. Sá

    (National Institute of Amazonian Research)

  • A. Araujo

    (National Institute of Amazonian Research)

  • J. Brito

    (University of Sao Paulo
    University Blaise Pascal)

  • P. Artaxo

    (University of Sao Paulo)

  • J. Kesselmeier

    (Max Planck Institute for Chemistry)

  • J. Lelieveld

    (Max Planck Institute for Chemistry)

  • J. Williams

    (Max Planck Institute for Chemistry)

Abstract

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.

Suggested Citation

  • E. Bourtsoukidis & T. Behrendt & A. M. Yañez-Serrano & H. Hellén & E. Diamantopoulos & E. Catão & K. Ashworth & A. Pozzer & C. A. Quesada & D. L. Martins & M. Sá & A. Araujo & J. Brito & P. Artaxo & J, 2018. "Strong sesquiterpene emissions from Amazonian soils," Nature Communications, Nature, vol. 9(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04658-y
    DOI: 10.1038/s41467-018-04658-y
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    Cited by:

    1. Giovanni Pugliese & Johannes Ingrisch & Laura K. Meredith & Eva Y. Pfannerstill & Thomas Klüpfel & Kathiravan Meeran & Joseph Byron & Gemma Purser & Juliana Gil-Loaiza & Joost Haren & Katerina Dontsov, 2023. "Effects of drought and recovery on soil volatile organic compound fluxes in an experimental rainforest," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Sara M. Blichner & Taina Yli-Juuti & Tero Mielonen & Christopher Pöhlker & Eemeli Holopainen & Liine Heikkinen & Claudia Mohr & Paulo Artaxo & Samara Carbone & Bruno Backes Meller & Cléo Quaresma Dias, 2024. "Process-evaluation of forest aerosol-cloud-climate feedback shows clear evidence from observations and large uncertainty in models," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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