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Post-translational Modifications of bZIP Transcription Factors in Abscisic Acid Signaling and Drought Responses

Author(s):

Hyunhee Joo, Woonhee Baek, Chae Woo Lim* and Sung Chul Lee*   Pages 1 - 12 ( 12 )

Abstract:


Under drought stress, plants have developed various mechanisms to survive in the reduced water supply, of which the regulation of stress-related gene expression is responsible for several transcription factors. The basic leucine zippers (bZIPs) are one of the largest and most diverse transcription factor families in plants. Among the 10 Arabidopsis bZIP groups, group A bZIP transcription factors function as a positive or negative regulator in ABA signal transduction and drought stress response. These bZIP transcription factors, which are involved in the drought response, have also been isolated in various plant species such as rice, pepper, potato, and maize. Recent studies have provided substantial evidences that many bZIP transcription factors undergo the post-translational modifications, through which the regulation of their activity or stability affects plant responses to various intracellular or extracellular stimuli. This review aims to address the modulation of the bZIP proteins in ABA signaling and drought responses through phosphorylation, ubiquitination, and sumoylation.

Keywords:

Abscisic acid, drought resistance, bZIP transcription factor, post-translational modification, drought stress, gene expression.

Affiliation:

Department of Life Science (BK21 program), Chung-Ang University, 84 Heukseok-Ro, Dongjak-Gu, Seoul 06974, Department of Life Science (BK21 program), Chung-Ang University, 84 Heukseok-Ro, Dongjak-Gu, Seoul 06974, Department of Life Science (BK21 program), Chung-Ang University, 84 Heukseok-Ro, Dongjak-Gu, Seoul 06974, Department of Life Science (BK21 program), Chung-Ang University, 84 Heukseok-Ro, Dongjak-Gu, Seoul 06974



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