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G3BPs in Plant Stress.

Aala A Abulfaraj¹, Heribert Hirt^2,3, Naganand Rayapuram²

¹Department of Biological Sciences, Science and Arts College, King Abdulaziz University, Jeddah, Saudi Arabia.

Frontiers in Plant Science

|June 28, 2021

Summary

Plants use RNA stress granules (SGs) to manage mRNA during environmental stress. Plant RasGAP SH3 domain binding proteins (G3BPs) are key scaffolds for SG assembly and function, though poorly understood.

Keywords:

G3BPs P-bodies RNA metabolism RNA regulation RNA-binding proteins post-transcriptional regulation stress granules translational control

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Visualization of G3BP Stress Granules Dynamics in Live Primary Cells

Visualization of G3BP Stress Granules Dynamics in Live Primary Cells

Published on: May 21, 2014

Area of Science:

Plant biology
Molecular biology
Biochemistry

Background:

Plants exhibit adaptable strategies to environmental stresses through mRNA metabolism reprogramming.
RNA stress granules (SGs) and processing bodies (P bodies) are crucial for synchronizing mRNA metabolism in organisms.
RasGAP SH3 domain binding proteins (G3BPs) act as scaffolds for SG assembly and stability, linking signal transduction with RNA metabolism.

Purpose of the Study:

To review recent findings on the dynamics and functions of plant G3BPs in response to environmental stresses.
To explore the poorly characterized role of G3BPs in plant stress responses.
To speculate on regulatory mechanisms of plant G3BP function.

Main Methods:

Literature review of recent findings on plant G3BPs.
Discussion of SG and P body dynamics in plants.
Exploration of potential regulatory mechanisms like transcription and post-translational modifications.

Main Results:

G3BPs are essential scaffolds for RNA stress granule (SG) formation and stability in plants.
Plant G3BPs coordinate receptor-mediated signal transduction with mRNA metabolism under stress.
The role and regulation of G3BPs in plants remain less characterized compared to mammals.

Conclusions:

Plant G3BPs are critical for managing mRNA metabolism during environmental stress.
Further research is needed to fully elucidate the mechanisms regulating plant G3BP function.
Understanding plant G3BPs offers insights into plant adaptation and stress resilience.