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@ARTICLE{Pitann:16801,
      author       = {Pitann, B. and Kranz, T. and Zörb, C. and Walter, A. and
                      Schurr, U. and Mühling, K.H.},
      title        = {{A}poplastic p{H} and growth in expanding leaves of {V}icia
                      faba under salinity},
      journal      = {Environmental and experimental botany},
      volume       = {74},
      issn         = {0098-8472},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-16801},
      pages        = {31 - 36},
      year         = {2011},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Salinity affects water availability in the soil and
                      subsequently the plant uptake capacity. Upon exposure to
                      salt stress, leaf growth in monocot plants has been shown to
                      be reduced instantaneously, followed by a gradual
                      acclimation. The growth reactions are caused by an initial
                      water deficit and an accompanied osmotic effect, followed by
                      an IAA-induced sequestration of protons into the apoplast
                      that increases leaf growth again as explained by the acid
                      growth theory. In this study, we investigated the dynamics
                      of growth reactions and apoplastic pH in leaves of the dicot
                      Vicia faba in the presence of NaCl during the initiation of
                      salt stress. Concurrent changes in apoplastic pH were
                      detected by ratiometric fluorescence microscopy using the
                      fluorescent dye fluorescein tetramethylrhodamine dextran. To
                      elucidate the possible relation between the dynamics of leaf
                      growth and apoplastic pH, results of the ratio imaging
                      technique were combined with an in vivo growth analysis
                      imaging approach. Leaf growth rate of V. faba was highest in
                      the dusk and the early night phase: at this time a
                      concomitant decrease of the apoplastic pH was observed.
                      Under salinity, the apoplastic pH in leaves of V. faba
                      increased with a simultaneous decrease of leaf growth
                      towards increasing developmental stages, but with complex
                      aberrations in the 24-h-leaf-growth pattern compared to
                      control leaves. In conclusion, these results show that salt
                      stress leads to an increase in apoplastic pH and to a
                      declined leaf growth activity with complex 24-h-interactions
                      of growth and pH in V. faba. Crown Copyright (C) 2011
                      Published by Elsevier B.V. All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {IBG-2},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Plant Sciences / Environmental Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000297492700005},
      doi          = {10.1016/j.envexpbot.2011.04.015},
      url          = {https://juser.fz-juelich.de/record/16801},
}