Antoni, ReginaRodríguez, LesiaGonzález Guzmán, MiguelPizzio Bianchi, Gaston AlfredoRodríguez Egea, Pedro Luís2014-06-252011-101369-5266https://riunet.upv.es/handle/10251/38357[EN] The recent identification of abscisic acid (ABA) transporters provides an important insight into the delivery of ABA from the vascular system and its uptake by target cells. A putative connection with PYR/PYL receptors is envisaged, linking ABA uptake and intracellular perception by a fast and efficient mechanism. Downstream signaling of the core pathway involves regulation of ABA-responsive element binding factors (ABFs/AREBs) through phosphorylation, ubiquitination, and sumoylation in the case of ABI5. Several E3 ligases appear to regulate ABA signaling either positively or negatively, although relatively few targets are known yet. ABFs/AREBs are themselves subjected to transcriptional regulation, and some transcription factors (TFs) harboring the WRKY domain (WRKYs) appear to regulate their expression through W-box sequences present in the promoters of ABFs/AREBs.7Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)Chelatas H-SubunitAbscisis-acid receptorFinger E3 ligaseTranscription factorSeed-germinationPlant-responsesNegative regulatorsArabidopsis growthStress responsesBIOQUIMICA Y BIOLOGIA MOLECULARMICROBIOLOGIAArtículo10.1016/j.pbi.2011.06.004Abierto21742545