Revisiting plant salt tolerance: novel components of the SOS pathway

Akhtar Ali; Veselin Petrov; Dae-Jin Yun; Tsanko Gechev

doi:10.1016/j.tplants.2023.04.003

Revisiting plant salt tolerance: novel components of the SOS pathway

Trends Plant Sci. 2023 Sep;28(9):1060-1069. doi: 10.1016/j.tplants.2023.04.003. Epub 2023 Apr 27.

Authors

Akhtar Ali¹, Veselin Petrov², Dae-Jin Yun³, Tsanko Gechev⁴

Affiliations

¹ Department Molecular Stress Physiology, Center of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria; Department of Biomedical Science and Engineering, Konkuk University, Seoul 05029, South Korea. Electronic address: akhtar@cpsbb.eu.
² Department Molecular Stress Physiology, Center of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria; Department of Plant Physiology, Biochemistry and Genetics, Agricultural University of Plovdiv, Plovdiv 4000, Bulgaria.
³ Department of Biomedical Science and Engineering, Konkuk University, Seoul 05029, South Korea.
⁴ Department Molecular Stress Physiology, Center of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria; Department of Plant Physiology and Molecular Biology, University of Plovdiv, Plovdiv 4000, Bulgaria. Electronic address: gechev@cpsbb.eu.

PMID: 37117077
DOI: 10.1016/j.tplants.2023.04.003

Abstract

The Salt Overly Sensitive (SOS) pathway plays a central role in plant salinity tolerance. Since the discovery of the SOS pathway, transcriptional and post-translational regulations of its core components have garnered considerable attention. To date, several proteins that regulate these core components, either positively or negatively at the protein and transcript levels, have been identified. Here, we review recent advances in the understanding of the functional regulation of the core proteins of the SOS pathway and an expanding spectrum of their upstream effectors in plants. Furthermore, we also discuss how these novel regulators act as key signaling nodes of multilayer control of plant development and stress adaptation through modulation of the SOS core proteins at the transcriptional and post-translational levels.

Keywords: SOS pathway; phosphorylation and dephosphorylation; salt tolerance; transcriptional and post-translational regulations.

Publication types

Review
Research Support, Non-U.S. Gov't

MeSH terms

Adaptation, Physiological
Arabidopsis Proteins* / metabolism
Gene Expression Regulation, Plant / genetics
Plant Proteins / genetics
Plant Proteins / metabolism
Salt Tolerance* / genetics

Substances

Arabidopsis Proteins
Plant Proteins