查看文章

Transcription factors (TFs) are often studied one by one or in clusters of a few related factors. However, the integration and networks of transcriptional changes to response to environmental stresses often involve many related TFs. In many organisms, such as plants, overlapping functions can make it difficult to understand how a biologically relevant end result can be achieved via the complex signaling networks controlled by these TFs. To better understand how the reference plant Arabidopsis deals with the stresses incurred by water limitation via the hormone abscisic acid (ABA), we characterized all DNA sequences that bind to the 21 ABA-related TFs in vivo.

There have been limited systematic studies of stress-responsive TF networks in multicellular organisms. We chose ABA, an essential plant hormone that is required for both development and responses to osmotic stress, as an …