期刊
FRONTIERS IN PLANT SCIENCE
卷 6, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2015.00171
关键词
glutathione; glutaredoxin GRXC9/GRX480; NPR1; reactive oxygen species; salicylic acid; thioredoxin TRXh5; TGA transcription factors
资金
- National Commission for Science and Technology CONICYT (FONDECYT) [1141202]
- Millennium Science Initiative (Nucleus for Plant Functional Genomics) [P10-062-F]
It is well established that salicylic acid (SA) plays a critical role in the transcriptional reprograming that occurs during the plant defense response against biotic and abiotic stress. In the course of the defense response, the transcription of different sets of defense genes is controlled in a spatio-temporal manner via SA mediated mechanisms. Interestingly, different lines of evidence indicate that SA interplays with reactive oxygen species (ROS) and glutathione (GSH) in stressed plants. In this review we focus on the evidence that links SA, ROS, and GSH signals to the transcriptional control of defense genes. We discuss how redox modifications of regulators and co-regulators involved in SA-mediated transcriptional responses control the temporal patterns of gene expression in response to stress. Finally, we examine how these redox sensors are coordinated with the dynamics of cellular redox changes occurring in the defense response to biotic and abiotic stress.
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