Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Control of ABA Signaling and Crosstalk With Other Hormones by Selective Degradation of Pathway Components

Version 1 : Received: 8 April 2021 / Approved: 14 April 2021 / Online: 14 April 2021 (17:37:27 CEST)

A peer-reviewed article of this Preprint also exists.

Sirko, A.; Wawrzyńska, A.; Brzywczy, J.; Sieńko, M. Control of ABA Signaling and Crosstalk with Other Hormones by the Selective Degradation of Pathway Components. Int. J. Mol. Sci. 2021, 22, 4638. Sirko, A.; Wawrzyńska, A.; Brzywczy, J.; Sieńko, M. Control of ABA Signaling and Crosstalk with Other Hormones by the Selective Degradation of Pathway Components. Int. J. Mol. Sci. 2021, 22, 4638.

Journal reference: Int. J. Mol. Sci. 2021, 22, 4638
DOI: 10.3390/ijms22094638

Abstract

A rapid and appropriate genetic and metabolic acclimation, which is crucial for plants’ survival in a changing environment, is maintained due to the coordinated action of plant hormones and cellular degradation mechanisms influencing proteostasis. The plant hormone abscisic acid (ABA) rapidly accumulates in plants in response to environmental stress and plays a pivotal role in the reaction to various stimuli. Increasing evidence demonstrates a significant role of autophagy in controlling ABA signaling. This field has been extensively investigated and new discoveries are constantly being provided. We present updated information on the components of the ABA signaling pathway, particularly on transcription factors modified by different E3 ligases. Then, we focus on the role of selective autophagy in ABA pathway control and review novel evidence on the involvement of autophagy in different parts of the ABA signaling pathway that are important for crosstalk with other hormones, particularly cytokinins and brassinosteroids.

Subject Areas

abscisic acid; autophagy; brassinosteroids; cytokinins; hormone crosstalk; ubiquitin

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