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@ARTICLE{Jahnke:3965,
      author       = {Jahnke, S. and Menzel, M. I. and van Dusschoten, D. and
                      Roeb, G. W. and Bühler, J. and Minwuyelet, S. and Blümler,
                      P. and Temperton, V. M. and Hombach, T. and Streun, M. and
                      Beer, S. and Khodaverdi, M. and Ziemons, K. and Coenen, H.
                      H. and Schurr, U.},
      title        = {{C}ombined {MRI}-{PET} dissects dynamic changes in plant
                      structures and functions},
      journal      = {The plant journal},
      volume       = {59},
      issn         = {0960-7412},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {PreJuSER-3965},
      pages        = {634 - 644},
      year         = {2009},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Unravelling the factors determining the allocation of
                      carbon to various plant organs is one of the great
                      challenges of modern plant biology. Studying allocation
                      under close to natural conditions requires non-invasive
                      methods, which are now becoming available for measuring
                      plants on a par with those developed for humans. By
                      combining magnetic resonance imaging (MRI) and positron
                      emission tomography (PET), we investigated three contrasting
                      root/shoot systems growing in sand or soil, with respect to
                      their structures, transport routes and the translocation
                      dynamics of recently fixed photoassimilates labelled with
                      the short-lived radioactive carbon isotope (11)C. Storage
                      organs of sugar beet (Beta vulgaris) and radish plants
                      (Raphanus sativus) were assessed using MRI, providing images
                      of the internal structures of the organs with high spatial
                      resolution, and while species-specific transport
                      sectoralities, properties of assimilate allocation and
                      unloading characteristics were measured using PET. Growth
                      and carbon allocation within complex root systems were
                      monitored in maize plants (Zea mays), and the results may be
                      used to identify factors affecting root growth in natural
                      substrates or in competition with roots of other plants.
                      MRI-PET co-registration opens the door for non-invasive
                      analysis of plant structures and transport processes that
                      may change in response to genomic, developmental or
                      environmental challenges. It is our aim to make the methods
                      applicable for quantitative analyses of plant traits in
                      phenotyping as well as in understanding the dynamics of key
                      processes that are essential to plant performance.},
      keywords     = {Beta vulgaris / Carbon Radioisotopes / Magnetic Resonance
                      Imaging: methods / Plant Roots: anatomy $\&$ histology /
                      Plant Roots: metabolism / Plant Shoots: anatomy $\&$
                      histology / Plant Shoots: metabolism / Positron-Emission
                      Tomography: methods / Raphanus / Zea mays / Carbon
                      Radioisotopes (NLM Chemicals) / J (WoSType)},
      cin          = {ICG-3 / INM-5},
      ddc          = {580},
      cid          = {I:(DE-Juel1)ICG-3-20090406 / I:(DE-Juel1)INM-5-20090406},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Plant Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:19392708},
      UT           = {WOS:000268961600011},
      doi          = {10.1111/j.1365-313X.2009.03888.x},
      url          = {https://juser.fz-juelich.de/record/3965},
}