Biotechnology Bulletin ›› 2025, Vol. 41 ›› Issue (2): 1-17.doi: 10.13560/j.cnki.biotech.bull.1985.2024-0795

   

Research Progress in the Roles of Plant Glycine-rich Protein Family

WANG Bin1,2(), LIN Wei1, XIAO Yan-hui1,2(), YUAN Xiao1,2()   

  1. 1.Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, College of Biology and Agriculture, Shaoguan University, Shaoguan 512005
    2.Guangdong Provincial Engineering and Technology Research Center of Special Fruit and Vegetables in Northern Region, Engineering and Technology Research Center of Shaoguan Horticulture in Shaoguan University, Shaoguan 512005
  • Received:2024-08-17 Online:2025-02-26 Published:2025-02-28
  • Contact: XIAO Yan-hui, YUAN Xiao E-mail:b_wang@sgu.edu.cn;yhxiao@sgu.edu.cn;yxiao@sgu.edu.cn

Abstract:

Glycine-rich proteins (GRPs) are a superfamily of proteins distinguished by their semi-repetitive glycine-rich sequences. Plant GRPs have many members and serve a variety of essential functions. The current researches show that plant GRPs play critical roles in plant growth and development, and respond to environmental factors. The first GRP gene was isolated and identified in plants as early as 1986. In recent years, significant advancements have been made in understanding the roles of GRPs in plant growth and development, and stress responses, thereby enriching our knowledge on their functions. However, there remains a lack of systematic reviews regarding the functions of plant GRPs in the domestic literature. Therefore, this article systematically summarizes the structural characteristics, family classification, and subcellular localization of the plant GRPs family, along with the latest research on their roles in plant growth and development, and stress regulation. Based on the variations in sequence structure, the plant GRPs were categorized into five major groups, with the Ⅳ category could further divide into four subfamilies. The expression of GRP genes shows significant tissue specificity and developmental stage specificity, also is adjusted by various environmental factors. GRPs serve not only as crucial components of cellular structure, but are also actively involved in biological processes under both normal and stressful conditions. Moreover, they may possess certain cross-organelle shuttle capabilities when faced with adverse stresses. Through the comprehensive review, the article aims to provide valuable insights and references for studies in related fields in China, thereby advancing the study of plant GRPs and offering guidance for future research directions.

Key words: glycine-rich protein (GRP), functional diversity, growth and development, stress resistance, research progress