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@ARTICLE{Genzel:892793,
      author       = {Genzel, Franziska and Dicke, Max Daniel and Junker-Frohn,
                      Laura Verena and Neuwohner, Andrea and Thiele, Björn and
                      Putz, Alexander and Usadel, Björn and Wormit, Alexandra and
                      Wiese-Klinkenberg, Anika},
      title        = {{I}mpact of {M}oderate {C}old and {S}alt {S}tress on the
                      {A}ccumulation of {A}ntioxidant {F}lavonoids in the {L}eaves
                      of {T}wo {C}apsicum {C}ultivars},
      journal      = {Journal of agricultural and food chemistry},
      volume       = {69},
      number       = {23},
      issn         = {0021-8561},
      address      = {Washington, DC [u.a.]},
      reportid     = {FZJ-2021-02350},
      pages        = {6431–6443},
      year         = {2021},
      abstract     = {The horticultural production of bell peppers generates
                      large quantities of residual biomass. Abiotic stress
                      stimulates the production of protective flavonoids, so the
                      deliberate application of stress to the plants after fruit
                      harvest could provide a strategy to valorize horticultural
                      residuals by increasing flavonoid concentrations,
                      facilitating their industrial extraction. Here we exposed
                      two Capsicum cultivars, a chilli and a bell pepper, to cold
                      and salt stress and combinations thereof to determine their
                      valorization potential. Noninvasive image-based phenotyping
                      and multiparametric fluorescence measurements indicated that
                      all stress treatments inhibited plant growth and reduced the
                      leaf chlorophyll fluorescence index, with the chilli
                      cultivar showing greater sensitivity. The fluorescence-based
                      FLAV index allowed the noninvasive assessment of foliar
                      luteolin glycosides. High-performance liquid
                      chromatography–mass spectrometry (HPLC-MS) analysis showed
                      that moderate cold increased the levels of two foliar
                      antioxidant luteolin glycosides in both cultivars, with bell
                      pepper containing the highest amounts (induced to maximum
                      5.5 mg g–1 DW cynaroside and 37.0 mg g–1 DW
                      graveobioside A) after combined stress treatment. These data
                      confirm the potential of abiotic stress for the valorization
                      of residual leaf biomass to enhance the industrial
                      extraction of antioxidant and bioactive flavonoids.},
      cin          = {IBG-2 / IBG-4},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IBG-2-20101118 / I:(DE-Juel1)IBG-4-20200403},
      pnm          = {217 - Für eine nachhaltige Bio-Ökonomie – von
                      Ressourcen zu Produkten (POF4-217)},
      pid          = {G:(DE-HGF)POF4-217},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {34081868},
      UT           = {WOS:000664302800005},
      doi          = {10.1021/acs.jafc.1c00908},
      url          = {https://juser.fz-juelich.de/record/892793},
}