000137612 001__ 137612
000137612 005__ 20210129212050.0
000137612 0247_ $$2doi$$a10.4161/psb.26626
000137612 0247_ $$2pmid$$apmid:24084646
000137612 037__ $$aFZJ-2013-03992
000137612 041__ $$aEnglish
000137612 082__ $$a580
000137612 1001_ $$0P:(DE-HGF)0$$aNunes, C.$$b0$$eCorresponding author
000137612 245__ $$aRegulation of growth by the trehalose pathway: Relationship to temperature and sucrose
000137612 260__ $$aAustin, Tex.$$bLandes Bioscience$$c2013
000137612 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1391150623_29422
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000137612 500__ $$3POF3_Assignment on 2016-02-29
000137612 520__ $$aCarbon signaling can override carbon supply in the regulation of growth. At least some of this regulation is imparted by the sugar signal trehalose 6-phosphate (T6P) through the protein kinase, SnRK1. This signaling pathway regulates biosynthetic processes involved in growth under optimal growing conditions. Recently, using a seedling system we showed that under sub-optimal conditions, such as cold, carbon signaling by T6P/ SnRK1 enables recovery of growth following relief of the stress. The T6P/ SnRK1 mechanism thus could be selected as a means of improving low temperature tolerance. High-throughput automated Fv/Fm measurements provide a potential means to screen for T6P/ SnRK1, and here we confirm through measurements of Fv/Fm in rosettes that T6P promotes low temperature tolerance and recovery during cold to warm transfer. Further, to better understand the coordination between sugars, trehalose pathway, and temperature-dependent growth, we examine the interrelationship between sugars, trehalose phosphate synthase (TPS), and trehalose phosphate phosphatase (TPP) gene expression and T6P content in seedlings. Sucrose, particularly when fed exogenously, correlated well with TPS1 and TPPB gene expression, suggesting that these enzymes are involved in maintaining carbon flux through the pathway in relation to sucrose supply. However, when sucrose accumulated to higher levels under low temperature and low N, TPS1 and TPPB expression were less directly related to sucrose; other factors may also contribute to regulation of TPS1 and TPPB expression under these conditions. TPPA expression was not related to sucrose content and all genes were not well correlated with endogenous glucose. Our work has implications for understanding acclimation to sink-limited growth conditions such as low temperature and for screening cold-tolerant genotypes with altered T6P/ SnRK1 signaling.
000137612 536__ $$0G:(DE-HGF)POF2-242$$a242 - Sustainable Bioproduction (POF2-242)$$cPOF2-242$$fPOF II$$x0
000137612 7001_ $$0P:(DE-HGF)0$$aSchluepmann, H.$$b1
000137612 7001_ $$0P:(DE-HGF)0$$aDelatte, T. L.$$b2
000137612 7001_ $$0P:(DE-HGF)0$$aWingler, A.$$b3
000137612 7001_ $$0P:(DE-HGF)0$$aSilva, A. B.$$b4
000137612 7001_ $$0P:(DE-HGF)0$$aFeveiro, P. S.$$b5
000137612 7001_ $$0P:(DE-Juel1)129337$$aJansen, Marcus$$b6$$ufzj
000137612 7001_ $$0P:(DE-Juel1)143649$$aFiorani, Fabio$$b7$$ufzj
000137612 7001_ $$0P:(DE-Juel1)129420$$aWiese-Klinkenberg, Anika$$b8$$ufzj
000137612 7001_ $$0P:(DE-HGF)0$$aPaul, M. J.$$b9
000137612 773__ $$0PERI:(DE-600)2252855-6$$a10.4161/psb.26626$$n12$$pe26626$$tPlant signaling & behavior$$v8$$x1559-2316
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000137612 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)143649$$aForschungszentrum Jülich GmbH$$b7$$kFZJ
000137612 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)129420$$aForschungszentrum Jülich GmbH$$b8$$kFZJ
000137612 9132_ $$0G:(DE-HGF)POF3-589H$$1G:(DE-HGF)POF3-580$$2G:(DE-HGF)POF3-500$$aDE-HGF$$bKey Technologies$$lKey Technologies for the Bioeconomy$$vAddenda$$x0
000137612 9131_ $$0G:(DE-HGF)POF2-242$$1G:(DE-HGF)POF2-240$$2G:(DE-HGF)POF2-200$$3G:(DE-HGF)POF2$$4G:(DE-HGF)POF$$aDE-HGF$$bErde und Umwelt$$lTerrestrische Umwelt$$vSustainable Bioproduction$$x0
000137612 9141_ $$y2013
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