Plant Osmotic Stress Signaling: MAPKKKs Meet SnRK2s

Jorge Lozano-Juste; Abdulwahed F Alrefaei; Pedro L Rodriguez

doi:10.1016/j.tplants.2020.09.003

Plant Osmotic Stress Signaling: MAPKKKs Meet SnRK2s

Trends Plant Sci. 2020 Dec;25(12):1179-1182. doi: 10.1016/j.tplants.2020.09.003. Epub 2020 Sep 21.

Authors

Jorge Lozano-Juste¹, Abdulwahed F Alrefaei², Pedro L Rodriguez³

Affiliations

¹ Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas - Universidad Politécnica de Valencia, 46022, Valencia, Spain.
² Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
³ Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas - Universidad Politécnica de Valencia, 46022, Valencia, Spain. Electronic address: prodriguez@ibmcp.upv.es.

PMID: 32972846
DOI: 10.1016/j.tplants.2020.09.003

Abstract

Osmotic stress signaling in higher plants is crucial to cope with abiotic stress. RAF-like MAPKKKs are activated by hyperosmotic stress and activate downstream ABA-unresponsive and ABA-activated SnRK2s, integrating early osmotic stress and ABA signaling cascades. The connection of B2/B3/B4 RAF-like MAPKKKs with SnRK2s is a new paradigm in signal transduction.

Keywords: MAPKKKs; RAF kinases; SnRK2s; abscisic acid; osmotic stress.

Publication types

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

MeSH terms

Abscisic Acid
Arabidopsis Proteins* / genetics
Arabidopsis Proteins* / metabolism
Arabidopsis* / genetics
Arabidopsis* / metabolism
Gene Expression Regulation, Plant
MAP Kinase Kinase Kinases
Osmotic Pressure
Phosphorylation
Protein Serine-Threonine Kinases / genetics
Protein Serine-Threonine Kinases / metabolism
Signal Transduction

Substances

Arabidopsis Proteins
SnRK2 protein, Arabidopsis
Abscisic Acid
Protein Serine-Threonine Kinases
MAP Kinase Kinase Kinases