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@ARTICLE{Muller:154633,
      author       = {Muller, Onno and Stewart, Jared J. and Cohu, Christopher M.
                      and Polutchko, Stephanie K. and Demmig-Adams, Barbara and
                      Adams, William W.},
      title        = {{L}eaf architectural, vascular and photosynthetic
                      acclimation to temperature in two biennials},
      journal      = {Physiologia plantarum},
      volume       = {152},
      number       = {4},
      issn         = {0031-9317},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2014-03923},
      pages        = {763–772},
      year         = {2014},
      abstract     = {Acclimation of leaf features to growth temperature was
                      investigated in two biennials (whose life cycle spans summer
                      and winter seasons) using different mechanisms of sugar
                      loading into exporting conduits, Verbascum phoeniceum
                      (employs sugar-synthesizing enzymes driving symplastic
                      loading through plasmodesmatal wall pores of phloem cells)
                      and Malva neglecta (likely apoplastic loader transporting
                      sugar via membrane transport proteins of phloem cells). In
                      both species, acclimation to lower temperature involved
                      greater maximal photosynthesis rates and vein density per
                      leaf area in close correlation with modification of minor
                      vein cellular features. While the symplastically loading
                      biennial exhibited adjustments in the size of minor leaf
                      vein cells (consistent with adjustment of the level of
                      sugar-synthesizing enzymes), the putative apoplastic
                      biennial exhibited adjustments in the number of cells
                      (consistent with adjustment of cell membrane area for
                      transporter placement). This upregulation of morphological
                      and anatomical features at lower growth temperature likely
                      contributes to the success of both the species during the
                      winter. Furthermore, while acclimation to low temperature
                      involved greater leaf mass per area in both species, this
                      resulted from greater leaf thickness in V. phoeniceum vs a
                      greater number of mesophyll cells per leaf area in M.
                      neglecta. Both types of adjustments presumably accommodate
                      more chloroplasts per leaf area contributing to
                      photosynthesis. Both biennials exhibited high foliar vein
                      densities (particularly the solar-tracking M. neglecta),
                      which should aid both sugar export from and delivery of
                      water to the leaves.},
      cin          = {IBG-2},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {89582 - Plant Science (POF2-89582)},
      pid          = {G:(DE-HGF)POF2-89582},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000345503100013},
      doi          = {10.1111/ppl.12226},
      url          = {https://juser.fz-juelich.de/record/154633},
}