转录因子及其在植物干旱胁迫响应中的作用

Transcription Factors: Structure,Classification and the Function in Plant Response to Drought Stress

转录因子是能够结合某基因上游特异核苷酸序列上的蛋白质,活化后从胞质转位至胞核,通过识别和结合基因启动子区的顺式作用元件,启动和调控基因表达。真核生物在转录水平上的基因表达调控,影响和控制着细胞和生物个体的许多生物学过程。本文综述了转录因子的结构、分类以及其在植物干旱胁迫中发挥的作用。

Transcription factors can combine with the specific nucleotide sequence upstream from target genes,activating or repressing the gene expression level.The regulation of gene expression in transcription level controls many biological processes.In this paper,the structure and classification of transcription factor were reviewed and the role of transcription factors in drought-tolerance of plants was also discussed.