拟南芥WRKY家族转录因子研究进展

WRKY transcription factors are one of the largest families of transcriptional regulators in plants，which contains 60-amino acid domain, and the conserved sequence motifs are WRKYGQK and a zinc-finger motif. The WRKY domain binds specifically to the DNA sequence motif (T)(T)TGAC(C/T), which is known as the W box. There are 74 members of WRKY transcription factors in Arabidopsis Thaliana. WRKY transcription factors appear to be involved in various physiological programs, including growth and development, senescence, biotic and abiotic stress responses, as well as phthogen defense responses. In this article, we reviewed the progresses on the structure of WRKY transcription factors and the function in various phsyilogical programs.