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@ARTICLE{Thomas:827360,
      author       = {Thomas, Stefan and Wahabzada, Mirwaes and Kuska, Matheus
                      Thomas and Rascher, Uwe and Mahlein, Anne-Katrin},
      title        = {{O}bservation of plant–pathogen interaction by
                      simultaneous hyperspectral imaging reflection and
                      transmission measurements},
      journal      = {Functional plant biology},
      volume       = {44},
      number       = {1},
      issn         = {1445-4408},
      address      = {Collingwood, Victoria},
      publisher    = {CSIRO Publ.},
      reportid     = {FZJ-2017-01496},
      pages        = {23 - 34},
      year         = {2017},
      abstract     = {Hyperspectral imaging sensors are valuable tools for plant
                      disease detection and plant phenotyping. Reflectance
                      properties are influenced by plant pathogens and resistance
                      responses, but changes of transmission characteristics of
                      plants are less described. In this study we used
                      simultaneously recorded reflectance and transmittance
                      imaging data of resistant and susceptible barley genotypes
                      that were inoculated with Blumeria graminis f. sp. hordei to
                      evaluate the added value of imaging transmission, reflection
                      and absorption for characterisation of disease development.
                      These datasets were statistically analysed using principal
                      component analysis, and compared with visual and molecular
                      disease estimation. Reflection measurement performed
                      significantly better for early detection of powdery mildew
                      infection, colonies could be detected 2 days before symptoms
                      became visible in RGB images. Transmission data could be
                      used to detect powdery mildew 2 days after symptoms becoming
                      visible in reflection based RGB images. Additionally
                      distinct transmission changes occurred at 580–650 nm for
                      pixels containing disease symptoms. It could be shown that
                      the additional information of the transmission data allows
                      for a clearer spatial differentiation and localisation
                      between powdery mildew symptoms and necrotic tissue on the
                      leaf then purely reflectance based data. Thus the
                      information of both measurement approaches are
                      complementary: reflectance based measurements facilitate an
                      early detection, and transmission measurements provide
                      additional information to better understand and quantify the
                      complex spatio-temporal dynamics of plant-pathogen
                      interactions.},
      cin          = {IBG-2},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000391305400004},
      doi          = {10.1071/FP16127},
      url          = {https://juser.fz-juelich.de/record/827360},
}