SPECIAL TOPICS
Research Progress on Post-translational Modifications of Starch Biosynthesis-related Proteins in Rice Endosperm
- 1Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
2Hainan Institute, Zhejiang University, Sanya 572025, China
Received date: 2024-05-05
Accepted date: 2024-10-14
Online published: 2024-10-21
Abstract
Protein post-translational modifications (PTMs) serve as a crucial regulatory mechanism of protein function and play a significant role in rice seed development and endosperm starch biosynthesis. With advancements in proteomics technologies, numerous starch synthesis-related proteins in rice endosperm have been identified to undergo various PTMs. This review summarizes the proteomic analyses, modification sites, pathways, and biological functions of six major types of PTMs in starch synthesis-related proteins in rice endosperm: phosphorylation, lysine acetylation, succinylation, 2-hydroxyisobutyrylation, malonylation, and ubiquitination. Among these, protein phosphorylation has been the most extensively studied and is recognized as a key regulator of plant growth, development, and starch metabolism. Additionally, we discuss the potential roles of PTMs in grain filling, rice starch quality, and appearance. This review provides insights into the regulatory mechanisms of PTMs in starch synthesis-related proteins in rice endosperm, offering a valuable reference for breeding high-yield and high-quality rice varieties.
Key words： rice; starch; biosynthesis; post-translational modification; proteomic
Cite this article
Xinyu Li , Yue Gu , Feifei Xu , Jinsong Bao . Research Progress on Post-translational Modifications of Starch Biosynthesis-related Proteins in Rice Endosperm[J]. Chinese Bulletin of Botany, 2025 , 60(2) : 256 -270 . DOI: 10.11983/CBB24067
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