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Protein Phosphorylation and Redox Modification in Stomatal Guard Cells
Kelly M Balmant1, Tong Zhang2, Sixue Chen3
1Department of Biology, Genetics Institute, University of FloridaGainesville, FL, USA; Plant Molecular and Cellular Biology Program, University of FloridaGainesville, FL, USA.
Frontiers in Physiology
|February 24, 2016
Summary
Post-translational modifications (PTMs) like phosphorylation and redox modification are crucial for plant stomatal movement during stress. Understanding these PTMs in guard cells can lead to crops with better stress tolerance and higher yields.
Area of Science:
- Plant biology
- Molecular signaling
- Proteomics
Background:
- Post-translational modifications (PTMs) regulate protein function and cellular processes.
- Plants face biotic and abiotic stresses impacting productivity.
- Stomatal movement is an early plant response to stress.
Purpose of the Study:
- To review the role of PTMs in plant stomatal guard cell signaling under stress.
- To highlight methods for PTM identification and quantification in guard cells.
- To connect PTMs to improved crop stress tolerance.
Main Methods:
- Literature review focusing on PTMs in stomatal guard cells.
- Discussion of PTM identification and quantification technologies.
- Analysis of PTMs in signal perception, second messenger production, and downstream signaling.
Main Results:
- Protein phosphorylation and redox modifications are key PTMs in stomatal movement.
- PTMs regulate signaling at multiple stages within guard cells.
- Current methods allow for PTM identification and quantification.
Conclusions:
- Understanding guard cell PTMs is vital for plant stress responses.
- Targeting PTMs can enhance crop stress tolerance, yield, and bioenergy production.
- Further research into PTMs will advance plant biotechnology and breeding.
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