Georgii, E. ; Kugler, K.G. ; Pfeifer, M. ; Vanzo, E. ; Block, K. ; Domagalska, M.A.* ; Jud, W. ; AbdElgawad, H.* ; Asard, H.* ; Reinhardt, R.* ; Hansel, A.* ; Spannagl, M. ; Schäffner, A. ; Palme, K.* ; Mayer, K.F.X. ; Schnitzler, J.-P.
     
 
    
        
The systems architecture of molecular memory in poplar after abiotic stress.
    
    
        
    
    
        
        Plant Cell 31, 346-367 (2019)
    
    
    
		
		
			
				Throughout the temperate zones, plants face combined drought and heat spells in increasing frequency and intensity. Here, we compared periodic (intermittent, i.e., high-frequency) versus chronic (continuous, i.e., high-intensity) drought-heat stress scenarios in gray poplar (Populus× canescens) plants for phenotypic and transcriptomic effects during stress and after recovery. Photosynthetic productivity after stress recovery exceeded the performance of poplar trees without stress experience. We analyzed the molecular basis of this stress-related memory phenotype and investigated gene expression responses across five major tree compartments including organs and wood tissues. For each of these tissue samples, transcriptomic changes induced by the two stress scenarios were highly similar during the stress phase but strikingly divergent after recovery. Characteristic molecular response patterns were found across tissues but involved different genes in each tissue. Only a small fraction of genes showed similar stress and recovery expression profiles across all tissues, including type 2C protein phosphatases, the LATE EMBRYOGENESIS ABUNDANT PROTEIN4-5 genes, and homologs of the Arabidopsis (Arabidopsis thaliana) transcription factor HOMEOBOX7. Analysis of the predicted transcription factor regulatory networks for these genes suggested that a complex interplay of common and tissue-specific components contributes to the coordination of post-recovery responses to stress in woody plants.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Protein Phosphatase 2c; Nac Transcription Factors; Water-deficit; Functional-analysis; Plant-responses; Drought Stress; Arabidopsis; Gene; Expression; Populus
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2019
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2019
    
 
    
    
        ISSN (print) / ISBN
        1040-4651
    
 
    
        e-ISSN
        1532-298X
    
 
    
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	    Band: 31,  
	    Heft: 2,  
	    Seiten: 346-367 
	    Artikelnummer: ,  
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            American Society of Plant Biologists (ASPB)
        
 
        
            Verlagsort
            15501 Monona Drive, Rockville, Md 20855 Usa
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30202 - Environmental Health
    
 
    
        Forschungsfeld(er)
        Environmental Sciences
    
 
    
        PSP-Element(e)
        G-504991-001
G-503500-002
G-504900-007
    
 
    
        Förderungen
        
    
 
    
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        Erfassungsdatum
        2019-03-01