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dc.contributor.author
Jansen, Kirstin
dc.contributor.author
Du, Baoguo
dc.contributor.author
Kayler, Zachary
dc.contributor.author
Siegwolf, Rolf
dc.contributor.author
Ensminger, Ingo
dc.contributor.author
Rennenberg, Heinz
dc.contributor.author
Kammerer, Bernd
dc.contributor.author
Jaeger, Carsten
dc.contributor.author
Schaub, Marcus
dc.contributor.author
Kreuzwieser, Jurgen
dc.contributor.author
Gessler, Arthur
dc.date.accessioned
2018-10-11T08:47:22Z
dc.date.available
2017-06-11T16:08:13Z
dc.date.available
2018-10-11T08:47:22Z
dc.date.issued
2014-12-01
dc.identifier.issn
1932-6203
dc.identifier.other
10.1371/journal.pone.0114165
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/98088
dc.identifier.doi
10.3929/ethz-b-000098088
dc.description.abstract
In the future, periods of strongly increased temperature in concert with drought (heat waves) will have potentially detrimental effects on trees and forests in Central Europe. Norway spruce might be at risk in the future climate of Central Europe. However, Douglas-fir is often discussed as an alternative for the drought and heat sensitive Norway spruce, because some provenances are considered to be well adapted to drier and warmer conditions. In this study, we identified the physiological and growth responses of seedlings from two different Douglas-fir provenances to increased temperature and atmospheric drought during a period of 92 days. We analysed (i) plant biomass, (ii) carbon stable isotope composition as an indicator for time integrated intrinsic water use efficiency, (iii) apparent respiratory carbon isotope fractionation as well as (iv) the profile of polar low molecular metabolites. Plant biomass was only slightly affected by increased temperatures and atmospheric drought but the more negative apparent respiratory fractionation indicated a temperature-dependent decrease in the commitment of substrate to the tricarboxylic acid cycle. The metabolite profile revealed that the simulated heat wave induced a switch in stress protecting compounds from proline to polyols. We conclude that metabolic acclimation successfully contributes to maintain functioning and physiological activity in seedlings of both Douglas-fir provenances under conditions that are expected during heat waves (i.e. elevated temperatures and atmospheric drought). Douglas-fir might be a potentially important tree species for forestry in Central Europe under changing climatic conditions.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
PLOS
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Douglas-Fir Seedlings Exhibit Metabolic Responses to Increased Temperature and Atmospheric Drought
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
PLoS ONE
ethz.journal.volume
9
en_US
ethz.journal.issue
12
en_US
ethz.journal.abbreviated
PLoS ONE
ethz.pages.start
e114165
en_US
ethz.size
21 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.publication.place
San Francisco, CA
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-11T16:08:51Z
ethz.source
ECIT
ethz.identifier.importid
imp593652ed1dbe895442
ethz.ecitpid
pub:153388
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-18T08:38:28Z
ethz.rosetta.lastUpdated
2024-02-02T06:18:16Z
ethz.rosetta.versionExported
true
ethz.COinS
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