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@ARTICLE{Nunes:137612,
      author       = {Nunes, C. and Schluepmann, H. and Delatte, T. L. and
                      Wingler, A. and Silva, A. B. and Feveiro, P. S. and Jansen,
                      Marcus and Fiorani, Fabio and Wiese-Klinkenberg, Anika and
                      Paul, M. J.},
      title        = {{R}egulation of growth by the trehalose pathway:
                      {R}elationship to temperature and sucrose},
      journal      = {Plant signaling $\&$ behavior},
      volume       = {8},
      number       = {12},
      issn         = {1559-2316},
      address      = {Austin, Tex.},
      publisher    = {Landes Bioscience},
      reportid     = {FZJ-2013-03992},
      pages        = {e26626},
      year         = {2013},
      abstract     = {Carbon signaling can override carbon supply in the
                      regulation of growth. At least some of this regulation is
                      imparted by the sugar signal trehalose 6-phosphate (T6P)
                      through the protein kinase, SnRK1. This signaling pathway
                      regulates biosynthetic processes involved in growth under
                      optimal growing conditions. Recently, using a seedling
                      system we showed that under sub-optimal conditions, such as
                      cold, carbon signaling by T6P/ SnRK1 enables recovery of
                      growth following relief of the stress. The T6P/ SnRK1
                      mechanism thus could be selected as a means of improving low
                      temperature tolerance. High-throughput automated Fv/Fm
                      measurements provide a potential means to screen for T6P/
                      SnRK1, and here we confirm through measurements of Fv/Fm in
                      rosettes that T6P promotes low temperature tolerance and
                      recovery during cold to warm transfer. Further, to better
                      understand the coordination between sugars, trehalose
                      pathway, and temperature-dependent growth, we examine the
                      interrelationship between sugars, trehalose phosphate
                      synthase (TPS), and trehalose phosphate phosphatase (TPP)
                      gene expression and T6P content in seedlings. Sucrose,
                      particularly when fed exogenously, correlated well with TPS1
                      and TPPB gene expression, suggesting that these enzymes are
                      involved in maintaining carbon flux through the pathway in
                      relation to sucrose supply. However, when sucrose
                      accumulated to higher levels under low temperature and low
                      N, TPS1 and TPPB expression were less directly related to
                      sucrose; other factors may also contribute to regulation of
                      TPS1 and TPPB expression under these conditions. TPPA
                      expression was not related to sucrose content and all genes
                      were not well correlated with endogenous glucose. Our work
                      has implications for understanding acclimation to
                      sink-limited growth conditions such as low temperature and
                      for screening cold-tolerant genotypes with altered T6P/
                      SnRK1 signaling.},
      cin          = {IBG-2},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {242 - Sustainable Bioproduction (POF2-242)},
      pid          = {G:(DE-HGF)POF2-242},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:24084646},
      doi          = {10.4161/psb.26626},
      url          = {https://juser.fz-juelich.de/record/137612},
}