News on ABA transport, protein degradation, and ABFs/WRKYs in ABA signaling

► ABC-transporters catalyze efflux of ABA from vascular tissues and uptake by target tissues. ► Regulation of ABI3 and ABI5 stability plays a key role in germination/seedling ABA signaling. ► Different ubiquitin E3 ligases negatively and positively regulate ABA signaling. ► The expression of ABFs/AREBs is regulated by WRKY transcription factors.