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Winters, A.J.* ; Hocart, C.H.* ; Schnitzler, J.-P. ; Zimmer, I. ; Adams, M.A.* ; Rennenberg, H.* ; Kreuzwieser, J.* ; Keitel, C.*

De novo terpenes emitted from juvenile leaves of Eucalyptus globulus Labill. subsp. globulus.

Molecules 30:2234 (2025)
Verlagsversion DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
The contributions of de novo synthesis to terpene emissions from Eucalyptus globulus subsp. globulus were determined by fumigating branchlets with 13CO2 in a gas exchange system. Of more than thirty-four terpenes emitted by this species, only four, i.e., isoprene, iso-valeraldehyde, cis-ocimene, and trans-caryophyllene, incorporated 13C into the terpene carbon skeleton during the ~5-6 h experiment. 13C incorporation into isoprene and iso-valeraldehyde reached a maximum of ca. 82% of the carbon skeleton, similar to cis-ocimene, with a maximum of 77% 13C incorporation after ~2.5 h exposure to 13CO2. Only ca. 20% of carbon was labelled in trans-caryophyllene after 5-6 h. the incorporation of 13C was observed only in compounds emitted from leaves, and was not detected in either individual oil glands or in bulk leaf tissue. The results suggest the de novo synthesis of some terpenes (isoprene, cis-ocimene, trans-caryophyllene, and iso-valeraldehyde) and their emission is independent of emissions of terpenes stored in oil glands.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter 13c Incorporation ; Bvoc ; Eucalyptus Globulus ; Gc-ms ; Ptr-ms ; De Novo Synthesis ; Terpene Emissions; Emission Rate Variability; Monoterpene Biosynthesis; Alpha-pinene; Isoprene; Carbon; Model; Chemistry; Synthase; Light; 2-methyl-3-buten-2-ol
ISSN (print) / ISBN 1420-3049
e-ISSN 1420-3049
Zeitschrift Molecules
Quellenangaben Band: 30, Heft: 10, Seiten: , Artikelnummer: 2234 Supplement: ,
Verlag MDPI
Verlagsort Basel
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Environmental Simulation (EUS)
Förderungen German Government (BMBF)
International Science Linkage grant from the Australian Department of Education, Science and Training
Australian Department of Education, Science and Training