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@ARTICLE{Junker:826039,
      author       = {Junker, Laura and Kleiber, Anita and Jansen, Kirstin and
                      Wildhagen, Henning and Hess, Moritz and Kayler, Zachary and
                      Kammerer, Bernd and Schnitzler, Jörg-Peter and Kreuzwieser,
                      Jürgen and Gessler, Arthur and Ensminger, Ingo},
      title        = {{V}ariation in short-term and long-term responses of
                      photosynthesis and isoprenoid-mediated photoprotection to
                      soil water availability in four {D}ouglas-fir provenances},
      journal      = {Scientific reports},
      volume       = {7},
      issn         = {2045-2322},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {FZJ-2017-00308},
      pages        = {40145},
      year         = {2017},
      abstract     = {For long-lived forest tree species, the understanding of
                      intraspecific variation among populations and their response
                      to water availability can reveal their ability to cope with
                      and adapt to climate change. Dissipation of excess
                      excitation energy, mediated by photoprotective isoprenoids,
                      is an important defense mechanism against drought and high
                      light when photosynthesis is hampered. We used 50-year-old
                      Douglas-fir trees of four provenances at two common garden
                      experiments to characterize provenance-specific variation in
                      photosynthesis and photoprotective mechanisms mediated by
                      essential and non-essential isoprenoids in response to soil
                      water availability and solar radiation. All provenances
                      revealed uniform photoprotective responses to high solar
                      radiation, including increased de-epoxidation of
                      photoprotective xanthophyll cycle pigments and enhanced
                      emission of volatile monoterpenes. In contrast, we observed
                      differences between provenances in response to drought,
                      where provenances sustaining higher CO2 assimilation rates
                      also revealed increased water-use efficiency,
                      carotenoid-chlorophyll ratios, pools of xanthophyll cycle
                      pigments, β-carotene and stored monoterpenes. Our results
                      demonstrate that local adaptation to contrasting habitats
                      affected chlorophyll-carotenoid ratios, pool sizes of
                      photoprotective xanthophylls, β-carotene, and stored
                      volatile isoprenoids. We conclude that intraspecific
                      variation in isoprenoid-mediated photoprotective mechanisms
                      contributes to the adaptive potential of Douglas-fir
                      provenances to climate change.},
      cin          = {IBG-2},
      ddc          = {000},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000392231300001},
      pubmed       = {pmid:28071755},
      doi          = {10.1038/srep40145},
      url          = {https://juser.fz-juelich.de/record/826039},
}