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Advances on Post-translational Modifications Involved in Seed Germination
Feng Yu1, Ming Li1, Dongli He1
1State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China.
Frontiers in Plant Science
|April 8, 2021
Summary
Seed germination relies on precise regulation by phytohormones like abscisic acid (ABA) and gibberellin (GA). Post-translational modifications (PTMs) critically control key proteins, influencing seed development and establishment.
Area of Science:
- Plant Biology
- Molecular Biology
- Developmental Biology
Background:
- Seed germination and seedling establishment are complex processes regulated at transcriptional and translational levels.
- Phytohormones abscisic acid (ABA) and gibberellin (GA) are key signaling molecules controlling seed dormancy and germination.
- Transcription factors like ABA insensitive5 (ABI5) and DELLA proteins mediate ABA and GA signaling, respectively.
Purpose of the Study:
- To review recent advancements in the role of post-translational modifications (PTMs) in regulating seed germination.
- To highlight the crucial functions of PTMs in ABI5 and DELLA protein regulation.
- To discuss PTM-based proteomics and PTM crosstalk during seed germination.
Main Methods:
- Literature review of recent research on seed germination regulation.
- Focus on post-translational modifications (PTMs) including phosphorylation and ubiquitination.
- Analysis of PTMs affecting ABI5 and DELLA protein function.
Main Results:
- Post-translational modifications (PTMs) play a decisive role in seed germination.
- Phosphorylation and ubiquitination are involved in regulating ABI5 function.
- PTMs of ABI5 and DELLA proteins are central to seed germination control.
Conclusions:
- PTMs are critical regulators of seed germination and seedling establishment.
- Understanding PTMs of ABI5 and DELLA proteins is essential for comprehending seed development.
- Further research on PTM-based proteomics and crosstalk will enhance our understanding of seed germination physiology.
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