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@ARTICLE{Timm:22572,
      author       = {Timm, S. and Mielewczik, M. and Florian, A. and
                      Frankenbach, S. and Dreissen, A. and Hocken, N. and
                      Alisdair, R.F. and Fernie, A.R. and Walter, A. and Bauwe,
                      H.},
      title        = {{H}igh-to-{L}ow {CO}2 {A}cclimation {R}eveals {P}lasticity
                      of the {P}hotorespiratory {P}athway and {I}ndicates
                      {R}egulatory {L}inks to {C}ellular {M}etabolism of
                      {A}rabidopsis},
      journal      = {PLoS one},
      volume       = {7},
      number       = {8},
      issn         = {1932-6203},
      address      = {Lawrence, Kan.},
      publisher    = {PLoS},
      reportid     = {PreJuSER-22572},
      pages        = {e42809},
      year         = {2012},
      note         = {This work was supported by grants from the Deutsche
                      Forschungsgemeinschaft (Photorespiration Network PROMICS,
                      FOR 1186) to AW, ARF and HB). The funders had no role in
                      study design, data collection and analysis, decision to
                      publish, or preparation of the manuscript.},
      abstract     = {Photorespiratory carbon metabolism was long considered as
                      an essentially closed and nonregulated pathway with little
                      interaction to other metabolic routes except nitrogen
                      metabolism and respiration. Most mutants of this pathway
                      cannot survive in ambient air and require CO(2)-enriched air
                      for normal growth. Several studies indicate that this CO(2)
                      requirement is very different for individual mutants,
                      suggesting a higher plasticity and more interaction of
                      photorespiratory metabolism as generally thought. To
                      understand this better, we examined a variety of high- and
                      low-level parameters at $1\%$ CO(2) and their alteration
                      during acclimation of wild-type plants and selected
                      photorespiratory mutants to ambient air.The wild type and
                      four photorespiratory mutants of Arabidopsis thaliana
                      (Arabidopsis) were grown to a defined stadium at $1\%$ CO(2)
                      and then transferred to normal air $(0.038\%$ CO(2)). All
                      other conditions remained unchanged. This approach allowed
                      unbiased side-by-side monitoring of acclimation processes on
                      several levels. For all lines, diel (24 h) leaf growth,
                      photosynthetic gas exchange, and PSII fluorescence were
                      monitored. Metabolite profiling was performed for the wild
                      type and two mutants. During acclimation, considerable
                      variation between the individual genotypes was detected in
                      many of the examined parameters, which correlated with the
                      position of the impaired reaction in the photorespiratory
                      pathway.Photorespiratory carbon metabolism does not operate
                      as a fully closed pathway. Acclimation from high to low
                      CO(2) was typically steady and consistent for a number of
                      features over several days, but we also found unexpected
                      short-term events, such as an intermittent very massive rise
                      of glycine levels after transition of one particular mutant
                      to ambient air. We conclude that photorespiration is
                      possibly exposed to redox regulation beyond known
                      substrate-level effects. Additionally, our data support the
                      view that 2-phosphoglycolate could be a key regulator of
                      photosynthetic-photorespiratory metabolism as a whole.},
      keywords     = {J (WoSType)},
      cin          = {IBG-2},
      ddc          = {500},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Biology},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:22912743},
      pmc          = {pmc:PMC3422345},
      UT           = {WOS:000308063700024},
      doi          = {10.1371/journal.pone.0042809},
      url          = {https://juser.fz-juelich.de/record/22572},
}