% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{Agyei:1037307,
      author       = {Agyei, Kwabena and Detring, Justus and Metzner, Ralf and
                      Huber, Gregor and Pflugfelder, Daniel and Eini, Omid and
                      Varrelmann, Mark and Mahlein, Anne-Kathrin and Koller,
                      Robert},
      title        = {{S}yndrome “basses richesses” disease induces
                      heterogenic allocation of carbon in growing sugar beet},
      reportid     = {FZJ-2025-00632},
      year         = {2024},
      abstract     = {Syndrome “basses richesses” (SBR) is a recently
                      emerging sugar beet disease. A cixiid planthopper is the
                      main vector of the proteobacterium and the phytoplasma that
                      cause SBR. SBR leads to a significant reduction in beet
                      biomass and sugar content, negatively affecting the sugar
                      economy.SBR causing bacteria are known to be restricted to
                      the phloem. It is speculated that the entire phloem
                      integrity from source to sink elements is altered under SBR
                      attack. But mechanistic understanding regarding carbon (C)
                      transport and accumulation in the beet under SBR attack is
                      currently incomplete.Therefore, the main aim of this study
                      was to uncover C transport patterns and quantify temporal
                      dynamics of taproot development under SBR attack. We assumed
                      that SBR impairs allocation of C within infected plants,
                      thereby impairing growth of the developing taproot.Sugar
                      beet plants were cultivated under controlled conditions in
                      natural field soil. We deployed magnetic resonance imaging
                      (MRI) and positron emission tomography (PET) as a deep
                      phenotyping approach to non-invasively characterize SBR
                      effects on the developing sugar beet taproot. Inoculated and
                      control plants were imaged weekly with MRI for structural
                      effects and in combination with PET for C allocation
                      patterns in 3D from 21 until 63 days after inoculation
                      (dai).Image data analysis revealed a reduction in taproot
                      volume and width of inner cambium ring structures as early
                      as 42 dai. We observed a heterogenous distribution of
                      recently fixed C for inoculated plants, predominantly at
                      later imaging days (56 and 63 dai). Also, post-harvest
                      analysis of belowground beet showed a significant reduction
                      in beet fresh weight and maximum beet diameter for
                      inoculated plants.Our results illustrate how a pathogen
                      affects sink capacity of developing taproot and opens
                      perspectives in uncovering mechanisms of SBR-sugar beet
                      interaction.},
      month         = {Oct},
      date          = {2024-10-07},
      organization  = {8th International Plant Phenotyping
                       Symposium, Lincoln (USA), 7 Oct 2024 -
                       11 Oct 2024},
      subtyp        = {After Call},
      cin          = {IBG-2},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217) / EXC 2070:  PhenoRob - Robotics and Phenotyping
                      for Sustainable Crop Production (390732324)},
      pid          = {G:(DE-HGF)POF4-2173 / G:(BMBF)390732324},
      typ          = {PUB:(DE-HGF)6},
      doi          = {10.34734/FZJ-2025-00632},
      url          = {https://juser.fz-juelich.de/record/1037307},
}