Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants

Reversible phosphorylation is a major mechanism for regulating protein function and controls a wide range of cellular functions including responses to external stimuli. The plant-specific SNF1-related protein kinase 2s (SnRK2s) function as central regulators of plant growth and development, as well...

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Main Authors: Yoshiaki Kamiyama, Sotaro Katagiri, Taishi Umezawa
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/10/7/1443
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author Yoshiaki Kamiyama
Sotaro Katagiri
Taishi Umezawa
author_facet Yoshiaki Kamiyama
Sotaro Katagiri
Taishi Umezawa
author_sort Yoshiaki Kamiyama
collection DOAJ
description Reversible phosphorylation is a major mechanism for regulating protein function and controls a wide range of cellular functions including responses to external stimuli. The plant-specific SNF1-related protein kinase 2s (SnRK2s) function as central regulators of plant growth and development, as well as tolerance to multiple abiotic stresses. Although the activity of SnRK2s is tightly regulated in a phytohormone abscisic acid (ABA)-dependent manner, recent investigations have revealed that SnRK2s can be activated by group B Raf-like protein kinases independently of ABA. Furthermore, evidence is accumulating that SnRK2s modulate plant growth through regulation of target of rapamycin (TOR) signaling. Here, we summarize recent advances in knowledge of how SnRK2s mediate plant growth and osmotic stress signaling and discuss future challenges in this research field.
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spelling doaj.art-990f23dcfc8646ec97303b4e06aa48d92023-11-22T04:44:17ZengMDPI AGPlants2223-77472021-07-01107144310.3390/plants10071443Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in PlantsYoshiaki Kamiyama0Sotaro Katagiri1Taishi Umezawa2Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, JapanGraduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, JapanGraduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, JapanReversible phosphorylation is a major mechanism for regulating protein function and controls a wide range of cellular functions including responses to external stimuli. The plant-specific SNF1-related protein kinase 2s (SnRK2s) function as central regulators of plant growth and development, as well as tolerance to multiple abiotic stresses. Although the activity of SnRK2s is tightly regulated in a phytohormone abscisic acid (ABA)-dependent manner, recent investigations have revealed that SnRK2s can be activated by group B Raf-like protein kinases independently of ABA. Furthermore, evidence is accumulating that SnRK2s modulate plant growth through regulation of target of rapamycin (TOR) signaling. Here, we summarize recent advances in knowledge of how SnRK2s mediate plant growth and osmotic stress signaling and discuss future challenges in this research field.https://www.mdpi.com/2223-7747/10/7/1443abscisic acidosmotic stressprotein kinasegrowth promotionSnRK2Raf
spellingShingle Yoshiaki Kamiyama
Sotaro Katagiri
Taishi Umezawa
Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants
Plants
abscisic acid
osmotic stress
protein kinase
growth promotion
SnRK2
Raf
title Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants
title_full Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants
title_fullStr Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants
title_full_unstemmed Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants
title_short Growth Promotion or Osmotic Stress Response: How SNF1-Related Protein Kinase 2 (SnRK2) Kinases Are Activated and Manage Intracellular Signaling in Plants
title_sort growth promotion or osmotic stress response how snf1 related protein kinase 2 snrk2 kinases are activated and manage intracellular signaling in plants
topic abscisic acid
osmotic stress
protein kinase
growth promotion
SnRK2
Raf
url https://www.mdpi.com/2223-7747/10/7/1443
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AT sotarokatagiri growthpromotionorosmoticstressresponsehowsnf1relatedproteinkinase2snrk2kinasesareactivatedandmanageintracellularsignalinginplants
AT taishiumezawa growthpromotionorosmoticstressresponsehowsnf1relatedproteinkinase2snrk2kinasesareactivatedandmanageintracellularsignalinginplants