Transcriptional activator involved in the regulation of plant development and tolerance to abiotic stresses (PubMed:21069430). Binds to the GCC-box pathogenesis-related promoter element and the cis-element CE1 (coupling element 1). Involved in the regulation of gene expression in response to abiotic stresses, possibly through the abscisic acid (ABA) signaling pathway (PubMed:20193749). Involved in resistance to the beet cyst nematode Heterodera schachtii in roots. May promote callose deposition at syncytia which may interfere with nutrient import into syncytia and inhibit the development of nematodes (PubMed:23510309). Expressed in petals, carpels and valves of immature siliques (PubMed:21069430). Expressed at high levels in stems. Expressed in roots, rosette leaves, flowers and siliques (PubMed:20193749, PubMed:23510309). Induced by salt, heat and drought stresses (PubMed:21069430). Induced by osmotic stress (PubMed:20193749). Induced by jasmonate (JA) (PubMed:21069430, PubMed:14756769, PubMed:17786451). Induced by salicylic acid (SA) (PubMed:14756769, PubMed:21069430). Induced by abscisic acid (ABA) (PubMed:20193749, PubMed:21069430). Induced by ethylene (PubMed:14756769). Induced by infection with the bacterial pathogen Pseudomonas syringae pv. tomato DC3000 (PubMed:14756769, PubMed:23510309). Induced by the bacterial pathogen Pseudomonas syringae pv. maculicola ES4326 (PubMed:14756769). Induced by wounding (PubMed:17786451). Down-regulated by infection with the beet cyst nematode Heterodera schachtii (PubMed:23510309). Belongs to the AP2/ERF transcription factor family. ERF subfamily.