Accepted author manuscript, 172 KB, Word document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Atmospheric benzenoid emissions from plants rival those from fossil fuels
AU - Misztal, P.
AU - Hewitt, C. N.
AU - Wildt, J.
AU - D. Blande, J.
AU - Eller, A.S.D.
AU - Fares, S.
AU - R. Gentner, D.
AU - B. Gilman, J.
AU - Graus, M.
AU - Greenberg, J.
AU - Guenther, A.
AU - Hansel, A
AU - Harley, Peter
AU - Huang, M.
AU - Jardine, K.
AU - Karl, T.
AU - Kaser, L.
AU - Keutsch, F.N.
AU - Kiendler-Scharr, A.
AU - Kleist, E.
AU - Lerner, B.M.
AU - Li, T.
AU - Mak, J.
AU - Nölscher, A.C.
AU - Schnitzhofer, R.
AU - Sinha, V.
AU - Thornton, B.
AU - Warneke, C.
AU - Wegener, F.
AU - Werner, C.
AU - Williams, J.
AU - Worton, D.R.
AU - Yassaa , N.
AU - Goldstein, A.H.
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
U2 - 10.1038/srep12064
DO - 10.1038/srep12064
M3 - Journal article
VL - 5
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 21064
ER -