Arongaus, A.B.* ; Chen, S.* ; Pireyre, M.* ; Glöckner, N.* ; Galvão, V.C.* ; Albert, A. ; Winkler, J.B. ; Fankhauser, C.* ; Zeiser, K.* ; Ulm, R.*
     
 
    
        
Arabidopsis RUP2 represses UVR8-mediated flowering in noninductive photoperiods.
    
    
        
    
    
        
        Genes Dev. 32, 1332-1343 (2018)
    
    
    
		
		
			
				Plants have evolved complex photoreceptor-controlled mechanisms to sense and respond to seasonal changes in day length. This ability allows plants to optimally time the transition from vegetative growth to flowering. UV-B is an important part intrinsic to sunlight; however, whether and how it affects photoperiodic flowering has remained elusive. Here, we report that, in the presence of UV-B, genetic mutation of REPRESSOR OF UV-B PHOTOMOR-PHOGENESIS 2 (RUP2) renders the facultative long day plant Arabidopsis thaliana a day-neutral plant and that this phenotype is dependent on the UV RESISTANCE LOCUS 8 (UVR8) UV-B photoreceptor. We provide evidence that the floral repression activity of RUP2 involves direct interaction with CONSTANS, repression of this key activator of flowering, and suppression of FLOWERING LOCUS T transcription. RUP2 therefore functions as an essential repressor of UVR8-mediated induction of flowering under noninductive short day conditions and thus provides a crucial mechanism of photoperiodic flowering control.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Sun Simulator ; Plant-environment Interaction ; Photoperiodism ; Flowering ; Uv-b Photoreceptor ; Uvr8 ; Arabidopsis; B-induced Photomorphogenesis; Transcription Factor Hy5; Uv-b; Locus-t; Floral Induction; Ft Protein; Photoreceptor Uvr8; Stress Acclimation; Distinct Roles; Seasonal Cues
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2018
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2018
    
 
    
    
        ISSN (print) / ISBN
        0890-9369
    
 
    
        e-ISSN
        1549-5477
    
 
    
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	    Band: 32,  
	    Heft: 19-20,  
	    Seiten: 1332-1343 
	    Artikelnummer: ,  
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            Cold Spring Harbor Laboratory Press
        
 
        
            Verlagsort
            1 Bungtown Rd, Cold Spring Harbor, Ny 11724 Usa
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30202 - Environmental Health
    
 
    
        Forschungsfeld(er)
        Environmental Sciences
    
 
    
        PSP-Element(e)
        G-504991-001
    
 
    
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        Erfassungsdatum
        2018-09-28