Transcription factor that binds to the promoter of ACO5, an ACC oxidase involved in ethylene biosynthesis. Mediates waterlogging-induced hyponastic leaf movement, and cell expansion in abaxial cells of the basal petiole region, by directly regulating the expression of ACO5 (PubMed:24363315). Required for normal seed development and morphology (PubMed:18849494). A number of isoforms are produced. According to EST sequences. By root flooding (PubMed:24363315). Induced by senescence (PubMed:24659488). In rosette plants, root flooding (waterlogging) triggers rapid upward (hyponastic) leaf movement representing an important architectural stress response that critically determines plant performance in natural habitats (Probable). Plants silencing NAC047 produce abnormally shaped seeds (PubMed:18849494).