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Abscisic acid (ABA) is the key plant hormone mediating plant response to diverse stresses.

ABA Receptors: Past, Present and Future Contact: Jay Chen, (865) 574-9094, chenj@ornl.gov Funding Source: DOE Office of Science, Biological and Environmental Research Programs, and the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory.

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Abscisic acid (ABA) is the key plant hormone mediating plant response to diverse stresses.

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  1. ABA Receptors: Past, Present and FutureContact: Jay Chen, (865) 574-9094, chenj@ornl.govFunding Source: DOE Office of Science, Biological and Environmental Research Programs, and the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory • Abscisic acid (ABA) is the key plant hormone mediating plant response to diverse stresses. • ABA signal is perceived by multiple ABA receptors, localized at the cell surface, in the cytosol or in the nucleus. • A central signaling complex consisting of receptors (PYR/PYL/RACRs), protein phosphatases (PP2Cs), protein kinases (SnRK2s), and transcription factors (AREBs) mediates ABA-regulated transcriptional responses. • The study of structural and functional mode of ABA signaling complex has profound influence in molecular engineering the ABA plant stress pathway. Figure 1.ABA receptors-mediated ABA signaling pathways in the regulation of transcriptional responses. Guo J, Yang X, Weston DJ, Chen JG (2011) J Integr Plant Biol (doi: 10.1111/j.1744-7909.2011.01044.x.)

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