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@ARTICLE{Nagel:49485,
      author       = {Nagel, K. and Schurr, U. and Walter, A.},
      title        = {{D}ynamics of root growth stimulation in {N}icotiana
                      tabacum in increasing light intensity},
      journal      = {Plant, cell $\&$ environment},
      volume       = {29},
      issn         = {0140-7791},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {PreJuSER-49485},
      pages        = {1936 - 1945},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Light intensity is crucial for plant growth. In this study,
                      the hypothesis was tested whether a sudden increase in light
                      intensity leads to an immediate increase of root growth.
                      Seedlings of Nicotiana tabacum grown in agar-filled Petri
                      dishes were subjected to light intensities of 60 and 300
                      micromol m(-2) s(-1), respectively. Seedling biomass,
                      sucrose, glucose and fructose concentration as well as
                      primary root growth increased significantly with light
                      intensity. The dynamics of the increase in root growth were
                      analysed here in more detail. In transition experiments from
                      low to high light intensities, root growth increased by a
                      factor of four within 4 d, reaching the steady-state level
                      measured in plants that were cultivated in high-light
                      conditions. The distribution of relative elemental growth
                      rates along the root growth zone retained a constant shape
                      throughout this transition. During the first three hours
                      after light increase, strong growth fluctuations were
                      repeatedly observed with the velocity of the root tip
                      cycling in a sinusoidal pattern between 120 and 180 microm
                      h(-1). These dynamic patterns are discussed in the context
                      of hydraulic and photosynthetic acclimation to the altered
                      conditions. Experiments with externally applied sucrose and
                      with transgenic plants having reduced capacities for sucrose
                      synthesis indicated clearly that increasing light intensity
                      rapidly enhanced root growth by elevating sucrose export
                      from shoot to root.},
      keywords     = {Chlorophyll: metabolism / Light / Photosynthesis / Plant
                      Roots: growth $\&$ development / Plant Roots: metabolism /
                      Spectrometry, Fluorescence / Tobacco: growth $\&$
                      development / Tobacco: physiology / Tobacco: radiation
                      effects / Chlorophyll (NLM Chemicals) / J (WoSType)},
      cin          = {ICG-III / JARA-ENERGY},
      ddc          = {570},
      cid          = {I:(DE-Juel1)VDB49 / $I:(DE-82)080011_20140620$},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Plant Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:16930319},
      UT           = {WOS:000240006300007},
      doi          = {10.1111/j.1365-3040.2006.01569.x},
      url          = {https://juser.fz-juelich.de/record/49485},
}