期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 73, 期 20, 页码 7055-7067出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erac315
关键词
Autophagy; plant cell; SnRK1 compartmentalization; SnRK1-interacting proteins; SnRK1; TOR signaling; stress granules
资金
- Ministeriode CienciaeInnovacion (MCIN/AEI) [PID2020-119737GA-I00]
- Ministerio de Economia y Competitividad [PGC2018-099048-B-100]
SnRK1, a multitasking protein kinase, plays a central role in metabolic responses to reduced energy levels in plants. It regulates various cellular functions through signaling in different subcellular compartments.
SNF1-related protein kinase 1 (SnRK1), the plant ortholog of mammalian AMP-activated protein kinase/fungal (yeast) Sucrose Non-Fermenting 1 (AMPK/SNF1), plays a central role in metabolic responses to reduced energy levels in response to nutritional and environmental stresses. SnRK1 functions as a heterotrimeric complex composed of a catalytic alpha- and regulatory beta- and beta gamma-subunits. SnRK1 is a multitasking protein involved in regulating various cellular functions, including growth, autophagy, stress response, stomatal development, pollen maturation, hormone signaling, and gene expression. However, little is known about the mechanism whereby SnRK1 ensures differential execution of downstream functions. Compartmentalization has been recently proposed as a new key mechanism for regulating SnRK1 signaling in response to stimuli. In this review, we discuss the multitasking role of SnRK1 signaling associated with different subcellular compartments. This review discusses the SnRK1 signaling associated with different subcellular compartments and how this compartmentalization may contribute to the multitasking role of the SnRK1 complex.
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