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@ARTICLE{Du:844692,
      author       = {Du, Baoguo and Kreuzwieser, Jürgen and Dannenmann, Michael
                      and Junker, Laura and Kleiber, Anita and Hess, Moritz and
                      Jansen, Kirstin and Eiblmeier, Monika and Gessler, Arthur
                      and Kohnle, Ulrich and Ensminger, Ingo and Rennenberg, Heinz
                      and Wildhagen, Henning},
      title        = {{F}oliar nitrogen metabolism of adult {D}ouglas-fir trees
                      is affected by soil water availability and varies little
                      among provenances},
      journal      = {PLoS one},
      volume       = {13},
      number       = {3},
      issn         = {1932-6203},
      address      = {Lawrence, Kan.},
      publisher    = {PLoS},
      reportid     = {FZJ-2018-02077},
      pages        = {e0194684 -},
      year         = {2018},
      abstract     = {The coniferous forest tree Douglas-fir (Pseudotsuga
                      menziesii) is native to the pacific North America, and is
                      increasingly planted in temperate regions worldwide.
                      Nitrogen (N) metabolism is of great importance for growth,
                      resistance and resilience of trees. In the present study,
                      foliar N metabolism of adult trees of three coastal and one
                      interior provenance of Douglas-fir grown at two common
                      gardens in southwestern Germany (Wiesloch, W; Schluchsee, S)
                      were characterized in two subsequent years. Both the native
                      North American habitats of the seed sources and the common
                      garden sites in Germany differ in climate conditions. Total
                      and mineral soil N as well as soil water content were higher
                      in S compared to W. We hypothesized that i) provenances
                      differ constitutively in N pool sizes and composition, ii) N
                      pools are affected by environmental conditions, and iii)
                      that effects of environmental factors on N pools differ
                      among interior and coastal provenances. Soil water content
                      strongly affected the concentrations of total N, soluble
                      protein, total amino acids (TAA), arginine and glutamate.
                      Foliar concentrations of total N, soluble protein,
                      structural N and TAA of trees grown at W were much higher
                      than in trees at S. Provenance effects were small but
                      significant for total N and soluble protein content
                      (interior provenance showed lowest concentrations), as well
                      as arginine, asparagine and glutamate. Our data suggest that
                      needle N status of adult Douglas-fir is independent from
                      soil N availability and that low soil water availability
                      induces a re-allocation of N from structural N to metabolic
                      N pools. Small provenance effects on N pools suggest that
                      local adaptation of Douglas-fir is not dominated by N
                      conditions at the native habitats.},
      cin          = {IBG-2},
      ddc          = {500},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29566035},
      UT           = {WOS:000428093900093},
      doi          = {10.1371/journal.pone.0194684},
      url          = {https://juser.fz-juelich.de/record/844692},
}