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@ARTICLE{Beisel:17572,
      author       = {Beisel, K.G. and Schurr, U. and Matsubara, S.},
      title        = {{A}ltered {T}urnover of beta-{C}arotene and {C}hl a in
                      {A}rabidopsis {L}eaves {T}reated with {L}incomycin or
                      {N}orflurazon},
      journal      = {Plant $\&$ cell physiology},
      volume       = {52},
      issn         = {0032-0781},
      address      = {Oxford},
      publisher    = {Oxford University Press},
      reportid     = {PreJuSER-17572},
      pages        = {1193 - 1203},
      year         = {2011},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Interactions between β-carotene (β-C) and Chl a turnover
                      were investigated in relation to photoinhibition and D1
                      protein turnover in mature leaves of Arabidopsis
                      (Arabidopsis thaliana) by ¹⁴CO₂ pulse-chase labeling.
                      Following a 2 h treatment of leaves with water, lincomycin
                      (Linco; an inhibitor of chloroplast protein synthesis) or
                      norflurazon (NF; an inhibitor of carotenoid biosynthesis at
                      phytoene desaturation) in the dark, ¹⁴CO₂ was applied
                      to the leaves for 30 min under control light (CL; 130 μmol
                      photons m⁻² s⁻¹) conditions, followed by exposure to
                      either CL or high light (HL; 1,100 μmol photons m⁻²
                      s⁻¹) in ambient CO₂ for up to 6 h. Under both light
                      conditions, ¹⁴C incorporation was strongly decreased for
                      Chl a and moderately suppressed for β-C in Linco-treated
                      leaves, showing a marked decline of PSII efficiency
                      (F(v)/F(m)) and β-C content compared with water-treated
                      leaves. Partial inhibition of carotenoid biosynthesis by NF
                      caused no or only a minor decrease in F(v)/F(m) and Chl a
                      turnover under both conditions, while the β-C content
                      significantly declined and high ¹⁴C labeling was found
                      for phytoene, the substrate of phytoene desaturase.
                      Together, the results suggest coordinated turnover of Chl a
                      and D1, but somewhat different regulation for β-C turnover,
                      in Arabidopsis leaves. Inhibition of carotenoid biosynthesis
                      by NF may initially enhance metabolic flux in the pathway
                      upstream of phytoene, presumably compensating for short
                      supply of β-C. Our observations are also in line with the
                      notion that HL-induced accumulation of xanthophylls may
                      involve a precursor pool which is distinct from that for
                      β-C turnover.},
      keywords     = {Arabidopsis: metabolism / Carbon Dioxide: metabolism /
                      Carotenoids: metabolism / Chlorophyll: biosynthesis /
                      Isotope Labeling / Light / Lincomycin: pharmacology /
                      Photosystem II Protein Complex: metabolism / Plant Leaves:
                      metabolism / Pyridazines: pharmacology / beta Carotene:
                      biosynthesis / Photosystem II Protein Complex (NLM
                      Chemicals) / Pyridazines (NLM Chemicals) / Carbon Dioxide
                      (NLM Chemicals) / Chlorophyll (NLM Chemicals) / Lincomycin
                      (NLM Chemicals) / norflurazone (NLM Chemicals) / Carotenoids
                      (NLM Chemicals) / chlorophyll a (NLM Chemicals) / phytoene
                      (NLM Chemicals) / beta Carotene (NLM Chemicals) / J
                      (WoSType)},
      cin          = {IBG-2},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Plant Sciences / Cell Biology},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:21632655},
      UT           = {WOS:000292837500006},
      doi          = {10.1093/pcp/pcr069},
      url          = {https://juser.fz-juelich.de/record/17572},
}