Combinatorial interaction network of abscisic acid receptors and coreceptors from Arabidopsis thaliana Article Swipe

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Abscisic acid Arabidopsis Arabidopsis thaliana Receptor Biology Cell biology Botany Computational biology Biochemistry Gene Mutant

Stefanie V. Tischer , Christian Wunschel , Michael Papacek , Karin Kleigrewe , Thomas Hofmann , Alexander Christmann , Erwin Grill ·

YOU? · · 2017 · Open Access · · DOI: https://doi.org/10.1073/pnas.1706593114 · OA: W2752431554

Significance The phytohormone abscisic acid (ABA) is the key signal for regulation of a plant’s water status. ABA signaling mediates drought resistance and can ameliorate water-use efficiency in plants. Arabidopsis has different ABA receptors and coreceptors, which form heterodimers that regulate the various ABA responses. This study reveals that the three receptor subfamilies have different sensitivities to ABA in Arabidopsis cells and the vast majority of receptor–coreceptor combinations are functional. The insights gained here will support the development of targeted approaches for harnessing ABA receptor components to improve crop performance under a limited water supply.