Figure 2.

A schematic model of transcriptional regulatory networks under abiotic stress, including drought, heat and other stresses. The ellipsoids show transcription factors that mainly mediate drought stress and/or ABA responses. The oblong boxes indicate the cis motifs that exist in the promoter region of stress-induced genes. ABREs/ABFs function mainly in drought- and ABA-dependent pathways. DREB2 mediates ABA-independent and heat stress signals. Other transcription factors, including NAC, MYC2 and WRKY, mediate crosstalk signals between ABA and other stresses in plants..