[Review on plant gene promoters].

Promoters are the important regulation factors/elements in gene expression. In this paper, the structure and function of promoters are analyzed and reviewed. Plant gene promoters are classified into constitutive promoters, inducible promoters, tissue (spatial) and developmental (temporary) specific promoters. The bi-directional promoters existed in nature and reconstructed artificially by some strategies are introduced and their applications in plant genetic engineering are prospected.