Reversible protein phosphorylation in higher plants: focus on state transitions
D V Vetoshkina1, M M Borisova-Mubarakshina1
1Institute of Basic Biological Problems of the Russian Academy of Sciences, Federal Research Center, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya st., 2, Pushchino, Russia.
Biophysical Reviews
|November 17, 2023
Summary
Reversible protein phosphorylation regulates plant cell metabolism, growth, and adaptation. This review focuses on photosystem II phosphorylation and state transitions, crucial for photosynthetic efficiency and evolution across organisms.
Area of Science:
- Plant Cell Biology
- Photosynthesis Research
- Molecular Plant Physiology
Background:
- Reversible protein phosphorylation is a key regulator of eukaryotic cell metabolism.
- Plant cells utilize phosphorylation for growth, development, adaptation, and signaling.
Purpose of the Study:
- To review the role of reversible protein phosphorylation in higher plants.
- To detail the impact on photosystem II light-harvesting protein phosphorylation and state transitions.
- To compare state transition mechanisms across different organisms and environmental factors.
Main Methods:
- Literature review of reversible protein phosphorylation in plants.
- Analysis of photosystem II phosphorylation and state transition mechanisms.
- Comparative analysis of state transitions in plants, algae, and cyanobacteria.
Main Results:
- Reversible phosphorylation significantly impacts plant growth, development, and adaptation pathways.
- Phosphorylation of light-harvesting proteins in photosystem II is critical for regulating photosynthetic activity via state transitions.
- State transitions exhibit conserved and divergent features across plants, algae, and cyanobacteria, with implications for evolution.
Conclusions:
- Reversible protein phosphorylation, particularly via STN7 kinase, plays a vital role in the global phosphorylation network and long-term acclimation in plants.
- Understanding state transitions offers insights into photosynthetic regulation and evolutionary adaptation.
- Environmental factors critically influence state transition processes.
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