Roles of MYB3R repressors for gene expression changes under salt stress

Three MYB3R proteins, MYB3R1, MYB3R3 and MYB3R5, are responsible for transcriptional repression of G2/M-specific genes to maintain their proper expression levels during cell cycle and plant development. Importantly, MYB3R repressors were found to be required for active growth repression under salt stress conditions. To understand the mechanisms of the MYB3R-mediated growth repression under salt stress, transcriptome analysis was performed for Arabidopsis seedlings treated with high concentration of NaCl continuously or transiently.