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http://dx.doi.org/10.5352/JLS.2007.17.2.235

AtERF11 is a positive regulator for disease resistance against a bacterial pathogen, Pseudomonas syringae, in Arabidopsis thaliana  

Kwon, Tack-Min (Division of Molecular Biotechnology, Dong-A University)
Jung, Yun-Hui (Division of Molecular Biotechnology, Dong-A University)
Jeong, Soon-Jae (Division of Molecular Biotechnology, Dong-A University)
Yi, Young-Byung (Division of Molecular Biotechnology, Dong-A University)
Nam, Jae-Sung (Division of Molecular Biotechnology, Dong-A University)
Publication Information
Journal of Life Science / v.17, no.2, 2007 , pp. 235-240 More about this Journal
Abstract
AvrRpt2 protein triggers hypersensitive response (HR) and strong disease resistance when it is translocated from a bacterial pathogen Pseudomonas sp. to host plant cells containing a cognate RPS2 resistance protein through Type III Secretion System (TTSS). However, AvrRpt2 protein can function as the effector that suppresses a basal defense and enhances the disease symptom when functional RPS2 resistance protein is absent in the infected plant cells. Using Affymetrix Arabidopsis DNA chip, we found that many genes were specifically regulated by AvrRpt2 protein in the rps2 Arabidopsis mutant. Here, we showed that expression of AtERF11 that is known as a member of B1a subcluster of AP2/ERF transcription factor family was down regulated specifically by AvrRpt2. To determine its function in plant resistance, we also generated the Arabidopsis thaliana transgenic plants constitutively overexpressing AtERF11 under CaMV 355 promoter, which conferred an enhanced resistance against a bacterial pathogen, Pseudomonas syringae pv. tomato DC3000. Thus, these results collectively suggest that AtERF11 plays a role as a positive regulator for disease resistance against biotrophic bacterial pathogen in plant.
Keywords
ethylene response element; disease resistance; Psuedomonas syringae. AvrRpt2;
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