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Long-distance communication in Arabidopsis involving a self-activating G protein

Journal Article · · Plant Direct
DOI:https://doi.org/10.1002/pld3.37· OSTI ID:1904654
 [1];  [2];  [2];  [2];  [3]
  1. University of North Carolina, Chapel Hill, NC (United States); Univ. of North Carolina, Chapel Hill, NC (United States)
  2. University of North Carolina, Chapel Hill, NC (United States)
  3. Department of Biology University of North Carolina at Chapel Hill Chapel Hill NC USA; Department of Pharmacology University of North Carolina at Chapel Hill Chapel Hill NC USA

In plant cells, heterotrimeric G protein signaling mediates development, biotic/abiotic stress responsiveness, hormone signaling, and extracellular sugar sensing. The amount of sugar in plant cells fluctuates from nanomolar to high millimolar concentrations over time depending on changes in the light environment. Arabidopsis thaliana Regulator of G Signaling protein 1 (AtRGS1) modulates G protein activation and detects the concentration and the exposure time of sugars. This is called dose–duration reciprocity in sugar sensing and occurs through AtRGS1 internalization which is directly proportional to G protein activation. One source of sugars is from CO2 fixation by photosynthesis. Through a simple set of experiments, we show that sugars made in cotyledons that are undergoing photomorphogenesis activate G signaling in cells distal to the nascent photosynthesis center. This occurs with sufficient speed to enable distal cells to monitor changes in photosynthetic activity in the leaves.

Research Organization:
University of North Carolina, Chapel Hill, NC (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); National Science Foundation (NSF); National Institute of General Medical Sciences (NIGMS)
Grant/Contract Number:
FG02-05ER15671
OSTI ID:
1904654
Journal Information:
Plant Direct, Journal Name: Plant Direct Journal Issue: 2 Vol. 2; ISSN 2475-4455
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (53)

Novel effects of methyl viologen on photosystem II function in spinach leaves journal June 2009
The MEDIATOR genes MED12 and MED13 control Arabidopsis root system configuration influencing sugar and auxin responses journal August 2017
Master regulators in plant glucose signaling networks journal March 2014
The impact of RGS and other G-protein regulatory proteins on Gαi-mediated signaling in immunity journal August 2016
Reciprocal Encoding of Signal Intensity and Duration in a Glucose-Sensing Circuit journal February 2014
GPCR-G Protein-β-Arrestin Super-Complex Mediates Sustained G Protein Signaling journal August 2016
d -Glucose sensing by a plasma membrane regulator of G signaling protein, At RGS1 journal September 2008
Chloroplast functionality has a positive effect on nitric oxide level in soybean cotyledons journal May 2013
Photosynthetic sucrose acts as cotyledon-derived long-distance signal to control root growth during early seedling development in Arabidopsis journal June 2012
Rice dwarf mutant d1 , which is defective in the α subunit of the heterotrimeric G protein, affects gibberellin signal transduction journal October 2000
Functional Reconstitution of an Atypical G Protein Heterotrimer and Regulator of G Protein Signaling Protein (RGS1) from Arabidopsis thaliana journal February 2011
Underwater Photosynthesis in Flooded Terrestrial Plants: A Matter of Leaf Plasticity journal July 2005
Roles of cell-wall invertases and monosaccharide transporters in the growth and development of Arabidopsis journal January 2003
An update on sugar transport and signalling in grapevine journal December 2013
Arabidopsis Coordinates the Diurnal Regulation of Carbon Allocation and Growth across a Wide Range of Photoperiods journal January 2014
Rapid, Organ-Specific Transcriptional Responses to Light Regulate Photomorphogenic Development in Dicot Seedlings       journal August 2011
Starch and Sucrose Synthesis in Phaseolus vulgaris as Affected by Light, CO 2 , and Abscisic Acid journal March 1985
The High Light Response in Arabidopsis Involves ABA Signaling between Vascular and Bundle Sheath Cells journal July 2009
Modulation of Cell Proliferation by Heterotrimeric G Protein in Arabidopsis journal June 2001
Growth attenuation under saline stress is mediated by the heterotrimeric G protein complex journal January 2014
The role of invertases in plant compensatory responses to simulated herbivory journal November 2015
The Influence of Indol-3Yl Acetic Acid and Sugar on the Pattern of Induced Differentiation in Plant Tissue Culture journal March 1967
G Protein Activation without a GEF in the Plant Kingdom journal June 2012
Dose-Duration Reciprocity for G protein activation: Modulation of kinase to substrate ratio alters cell signaling journal December 2017
Heterotrimeric G Protein–Coupled Signaling in Plants text January 2014
Cooperative control between AtRGS1 and AtHXK1 in a WD40-repeat protein pathway in Arabidopsis thaliana text January 2015
A shadow detector for photosynthesis efficiency text January 2017
BRL3 and AtRGS1 cooperate to fine tune growth inhibition and ROS activation text January 2017
Regulation of cell division and expansion by sugar and auxin signaling journal January 2013
Photosynthate Regulation of the Root System Architecture Mediated by the Heterotrimeric G Protein Complex in Arabidopsis journal August 2016
Recent Progress in Understanding the Conformational Mechanism of Heterotrimeric G Protein Activation journal January 2017
Experimental Induction of Vascular Tissues in Callus of Angiosperms journal May 1963
Light-induced gradual activation of photosystem II in dark-grown Norway spruce seedlings journal June 2016
GPCR desensitization: Acute and prolonged phases journal January 2018
A shadow detector for photosynthesis efficiency journal February 2017
Endocytosis of the seven-transmembrane RGS1 protein activates G-protein-coupled signalling in Arabidopsis journal September 2012
Differential TOR activation and cell proliferation in Arabidopsis root and shoot apexes journal February 2017
Molecular mechanism of substrate recognition and transport by the AtSWEET13 sugar transporter journal September 2017
Functional Reconstitution of an Atypical G Protein Heterotrimer and Regulator of G Protein Signaling Protein (RGS1) from Arabidopsis thaliana journal February 2011
Sweet immunity in the plant circadian regulatory network journal February 2013
Plant Morphology of Heterotrimeric G Protein Mutants journal January 2016
Differential Roles of Arabidopsis Heterotrimeric G-Protein Subunits in Modulating Cell Division in Roots journal May 2006
Photosynthesis Activates Plasma Membrane H+-ATPase via Sugar Accumulation journal March 2016
Rapid Metabolism of Glucose Detected with FRET Glucose Nanosensors in Epidermal Cells and Intact Roots of Arabidopsis RNA-Silencing Mutants journal August 2006
Photosynthate partitioning to starch in Arabidopsis thaliana is insensitive to light intensity but sensitive to photoperiod due to a restriction on growth in the light in short photoperiods : Carbon allocation to starch journal August 2017
A Seven-Transmembrane RGS Protein That Modulates Plant Cell Proliferation journal September 2003
Sugar Control of the Plant Cell Cycle: Differential Regulation of Arabidopsis D-Type Cyclin Gene Expression journal July 2000
Heterotrimeric G Protein–Coupled Signaling in Plants journal April 2014
SUGAR SENSING AND SIGNALING IN PLANTS: Conserved and Novel Mechanisms journal June 2006
Ligand-induced dynamics of heterotrimeric G protein-coupled receptor-like kinase complexes journal February 2017
BRL3 and AtRGS1 cooperate to fine tune growth inhibition and ROS activation journal May 2017
Cooperative control between AtRGS1 and AtHXK1 in a WD40-repeat protein pathway in Arabidopsis thaliana journal October 2015
Endocytosis of AtRGS1 Is Regulated by the Autophagy Pathway after D-Glucose Stimulation journal July 2017

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