Mechanisms of SnRK1 in regulating the stress responses, growth, and development of plants.

Jingmin REN; Guoqiang WU; Xinmiao ZHANG; Ming WEI

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Mechanisms of SnRK1 in regulating the stress responses, growth, and development of plants.

Author: Jingmin REN ¹ ; Guoqiang WU ¹ ; Xinmiao ZHANG ² ; Ming WEI ¹
Author Information

1. School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China.
2. School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China.
Publication Type:English Abstract
Keywords: energy metabolism; regulation of transcription; salt tolerance; stress; sucrose non-fermenting 1-related protein kinase 1
MeSH: Stress, Physiological/physiology*; Protein Serine-Threonine Kinases/metabolism*; Plant Development/genetics*; Signal Transduction; Gene Expression Regulation, Plant; Plant Proteins/physiology*; Plants/metabolism*; Arabidopsis Proteins/physiology*; Plant Growth Regulators/metabolism*
From: Chinese Journal of Biotechnology 2025;41(7):2579-2595
CountryChina
Language:Chinese
Abstract: Sucrose non-fermenting 1-related protein kinase 1 (SnRK1) is one of the highly conserved Ca²⁺ non-dependent serine/threonine protein kinases, playing a crucial role in regulating the stress responses, growth, and development of plants. SnRK1 is a three-subunit complex, and it is involved in responding to the signaling transduction induced by low-energy/low-sugar conditions. SnRK1 responds biotic and abiotic stress conditions (such as salt, drought, low/high temperatures, and diseases) through phosphorylation of key metabolic enzymes and regulatory proteins, regulation of transcription, and interactions with other proteins. Furthermore, SnRK1 is not only involved in hormone signaling pathways mediated by abscisic acid (ABA), jasmonic acid (JA) and salicylic acid (SA), but also regulates plant autophagy by inhibiting the activity of target of rapamycin (TOR). In this review, we summarized the current results of research on the discovery, structure, and classification of plant SnRK1 and its roles in the stress responses, growth, and development of plants. Furthermore, this article proposes the directions of future research. This review provides good genetic resources and a theoretical basis for the genetic improvement and biological breeding for enhancing the stress tolerance of crops.