A systems biology perspective on the role of WRKY transcription factors in drought responses in plants

Abstract

proteins. what are often lacking are connections between metabolomics, wRKY transcription factors, promoters, biosynthetic pathways, fluxes and downstream responses. As more levels of the system are characterized, a more detailed understanding of the roles of wRKY transcription factors in drought responses in crops will be obtained.

Regulation of Specialized Metabolism by WRKY Transcription Factors

“…One approach is to use TFs to reengineer plants for increased metabolite production. The WRKY TF family is well known for the regulation of stress tolerance based on its association with numerous stress-related phenotypes and our understanding of the underlying mechanisms for stresses (Chen et al, 2012;Bakshi and Oelmüller, 2014;Tripathi et al, 2014). The relative ease of identifying mutant phenotypes in stressresponse screens has been a key contributor to establishing the association of WRKYs with stress.…”

“…Since 1994, WRKY TFs have been found to play roles in plant tolerance to a variety of abiotic stresses, including wounding, drought, salt, heat, cold, and osmotic pressure, topics that have been extensively reviewed recently (Chen et al, 2012;Bakshi and Oelmüller, 2014;Tripathi et al, 2014). Arabidopsis WRKY45 mediates the expression of a transporter needed for phosphate acquisition, providing insight into how WRKYs manage plant tolerance to soil abiotic stress .…”

The rice transcription factor OsWRKY47 is a positive regulator of the response to water deficit stress

“…Rushton et al 2010;Chen et al 2012;Tripathi et al 2014;Schluttenhofer and Yuan 2015). Overexpression of soybean GmWRKY13 in Arabidopsis conferred higher sensitivity to salinity and osmotic stress in the transgenic plants (Zhou et al 2008).…”

Differential analysis of gene related to hard bunch phenomena in oil palm (Elaeis guineensis Jacq) fruits

“…Abiotic stress is regulated by ABA and it is known that WRKY is a key factor in signaling pathway which responsive to ABA (Rushton et al, 2011). WRKY together with other TFs such as MYB, bHLH, bZIP, ERF, NAC interact with each other in response to drought stress (Tripathi et al, 2014).…”