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Atmospheric benzenoid emissions from plants rival those from fossil fuels

Misztal, P K ; Hewitt, C N ; Wildt, J ; Blande, J D ; Eller, A S D ; Fares, S ; Gentner, D R ; Gilman, J B ; Graus, M ; Greenberg, J ; Guenther, A B ; Hansel, A ; Harley, P ; Huang, M ; Jardine, K ; Karl, T ; Kaser, L ; Keutsch, F N ; Kiendler-Scharr, A ; Kleist, E ; Lerner, B M ; Li, T ; Mak, J ; Nölscher, A C ; Schnitzhofer, R ; Sinha, V ; Thornton, B ; Warneke, C ; Wegener, F ; Werner, C ; Williams, J ; Worton, D R ; Yassaa, N ; Goldstein, A H

Scientific reports, 2015-07, Vol.5 (1), p.12064-12064, Article 12064 [Periódico revisado por pares]

England: Nature Publishing Group

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Título:
Atmospheric benzenoid emissions from plants rival those from fossil fuels
Autor: Misztal, P K ; Hewitt, C N ; Wildt, J ; Blande, J D ; Eller, A S D ; Fares, S ; Gentner, D R ; Gilman, J B ; Graus, M ; Greenberg, J ; Guenther, A B ; Hansel, A ; Harley, P ; Huang, M ; Jardine, K ; Karl, T ; Kaser, L ; Keutsch, F N ; Kiendler-Scharr, A ; Kleist, E ; Lerner, B M ; Li, T ; Mak, J ; Nölscher, A C ; Schnitzhofer, R ; Sinha, V ; Thornton, B ; Warneke, C ; Wegener, F ; Werner, C ; Williams, J ; Worton, D R ; Yassaa, N ; Goldstein, A H
Assuntos: Aerosols ; Aircraft ; Aromatic compounds ; Atmosphere ; Atmosphere - analysis ; atmospheric chemistry ; atmospheric chemistry, climate-change ecology, plant stress responses ; BASIC BIOLOGICAL SCIENCES ; Benzene - chemistry ; Biosphere ; Chemical communication ; Climate ; climate-change ecology ; Ecosystem ; Emissions ; ENVIRONMENTAL SCIENCES ; Flowers ; Fossil fuels ; Fossil Fuels - analysis ; Phytoplankton ; plant stress responses ; Scents ; Stress, Physiological - physiology ; Trees - metabolism ; Vegetation ; Volatile Organic Compounds - chemistry
É parte de: Scientific reports, 2015-07, Vol.5 (1), p.12064-12064, Article 12064
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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PNNL-SA-114338
AC05-76RL01830; AC02-05CH11231
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Current address: Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA 02138, USA.
Current address: Universität Freiburg, Ecosystem physiology, 79110 Freiburg, Germany.
Current address: University of Innsbruck, Institute of Atmospheric and Cryospheric Sciences,6020 Innsbruck, Austria.
Descrição: Despite the known biochemical production of a range of aromatic compounds by plants and the presence of benzenoids in floral scents, the emissions of only a few benzenoid compounds have been reported from the biosphere to the atmosphere. Here, using evidence from measurements at aircraft, ecosystem, tree, branch and leaf scales, with complementary isotopic labeling experiments, we show that vegetation (leaves, flowers, and phytoplankton) emits a wide variety of benzenoid compounds to the atmosphere at substantial rates. Controlled environment experiments show that plants are able to alter their metabolism to produce and release many benzenoids under stress conditions. The functions of these compounds remain unclear but may be related to chemical communication and protection against stress. We estimate the total global secondary organic aerosol potential from biogenic benzenoids to be similar to that from anthropogenic benzenoids (~10 Tg y(-1)), pointing to the importance of these natural emissions in atmospheric physics and chemistry.
Editor: England: Nature Publishing Group
Idioma: Inglês

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Atmospheric benzenoid emissions from plants rival those from fossil fuels

England: Nature Publishing Group

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