ABSTRACT

Abstract. Salt stress is a major environmental factor that adversely affects plant growth, development and crop yields. During the response and adaptation to salt stress, there are many changes in biochemical and physiological processes. Many genes are activated, leading to accumulation of numerous proteins involved in resistance to salt stress. The expression of stress-induced genes is largely regulated by specific transcription factors (TFs). Typically, the TFs are capable of activating or repressing

transcription of multiple target genes. So far, various TFs and cis-acting elements contained in stress-responsive promoters have been described. These TFs and cis-motifs function not only as molecular switches for gene expression but also as terminal points of signal transduction in the signaling processes. In this section, we summarize the research progress of major TFs involved in plant salt stress regulation. We focus on the function and mechanism of the TFs including ERF/AP2, MYB, and NAC.