High humidity suppressesssi4-mediated cell death and disease resistance upstream of MAP kinase activation, H2O2production and defense gene expression

2004 ◽  
Vol 39 (6) ◽  
pp. 920-932 ◽  
Author(s):  
Fasong Zhou ◽  
Frank L.H. Menke ◽  
Keiko Yoshioka ◽  
Wolfgang Moder ◽  
Yumiko Shirano ◽  
...  
Keyword(s):  
Gene Expression ◽  
Cell Death ◽  
Disease Resistance ◽  
Map Kinase ◽  
High Humidity ◽  
Defense Gene Expression ◽  
Kinase Activation ◽  
Defense Gene

scholarly journals Overexpression of Pti5 in Tomato Potentiates Pathogen-Induced Defense Gene Expression and Enhances Disease Resistance to Pseudomonas syringae pv. tomato

2001 ◽  
Vol 14 (12) ◽  
pp. 1453-1457 ◽  
Author(s):  
Ping He ◽  
Randall F. Warren ◽  
Tiehan Zhao ◽  
Libo Shan ◽  
Lihuang Zhu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Disease Resistance ◽  
Pseudomonas Syringae ◽  
Transcriptional Activation ◽  
Induced Defense ◽  
Constitutive Expression ◽  
Disease Resistance Gene ◽  
Defense Gene Expression ◽  
Positive Role ◽  
Defense Gene

The tomato Pti5 gene encodes a pathogen-inducible ethylene response element-binding protein-like transcription factor that interacts with the disease resistance gene product Pto. Overexpression of Pti5 or Pti5-VP16, a translational fusion with a constitutive transcriptional activation domain, in tomato enhanced resistance to Pseudomonas syringae pv. tomato. Constitutive expression of Pti5 or Pti5-VP16 did not affect the basal level of pathogenesis-related gene expression, but it accelerated pathogen-induced expression of GluB and Catalase. The results demonstrate a positive role of Pti5 in defense gene regulation and disease resistance and suggest that a pathogen-activated posttran-scriptional regulatory step is necessary for the pathogen induction of the defense gene expression.

scholarly journals Hydrogen Peroxide Activates Cell Death and Defense Gene Expression in Birch

2002 ◽  
Vol 130 (2) ◽  
pp. 549-560 ◽  
Author(s):  
Riikka I. Pellinen ◽  
Minna-Sisko Korhonen ◽  
Airi A. Tauriainen ◽  
E. Tapio Palva ◽  
Jaakko Kangasjärvi
Keyword(s):  
Gene Expression ◽  
Hydrogen Peroxide ◽  
Cell Death ◽  
Defense Gene Expression ◽  
Defense Gene
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