Figure 4.
Schematic representation of development, phytohormones and nutrient use efficiency regulation mediated by AP2/ERF transcription factors in rice. In Section 3.5, OsERF3/OsAP37, Crl5 and OsERF48/OsDRAP1 are described as affecting root initiation and formation. In Section 3.6, HL6, OsEATB, OsERF2/WR4, OsRPH1, SMOS1/NGR5, SNORKEL1, SNORKEL2, OsDERF1, OsAP2-39 and OsERF3 are described to regulate various growth processes of plants by participating in phytohormone pathways. SMOS1/NGR5 and OsDREB1C promote rice nitrogen use efficiency, as described in Section 3.7. The AP2/ERF transcription factors and other regulators are shown in red and black, respectively. Abbreviations: indole-3-acetic acid, IAA; abscisic acid, ABA; gibberellin, GA; brassinosteroid, BR.