植物学报 ›› 2025, Vol. 60 ›› Issue (3): 1-0.DOI: 10.11983/CBB24106

• 专题论坛 • 上一篇    

植物香豆素类化合物合成及其在铁吸收中的功能研究进展

周婧1, 高飞2*   

  1. 1湖南农业大学生物科学技术学院, 长沙 410128; 2湖南农业大学农学院, 长沙 410128


  • 收稿日期:2024-07-17 修回日期:2024-11-07 出版日期:2025-05-10 发布日期:2024-12-27
  • 通讯作者: 高飞
  • 基金资助:

    湖南省自然科学基金(No.2023JJ40325; No.2023JJ40312)和湖南省教育厅资助科研项目(No.22B0228,22B0182)

Advances in Coumarins Biosynthesis and their Functions in Iron Absorption in Plants

Jing Zhou1, Fei Gao2*   

  1. 1College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; 2 College of Agronomy, Hunan Agricultural University, Changsha 410128,  China

  • Received:2024-07-17 Revised:2024-11-07 Online:2025-05-10 Published:2024-12-27
  • Contact: Fei Gao

摘要: 香豆素类化合物是一类以苯并吡喃酮为母环结构的酚类化合物, 可分为简单香豆素和复杂香豆素, 广泛存在于自然界的高等植物中。研究表明, 缺铁条件下, 植物根部分泌的简单香豆素类化合物能够促进铁离子的吸收。本文就近年来发现和鉴定的植物缺铁诱导型香豆素合成和调控相关基因的研究进展进行了综述, 并且进一步详细阐述了缺铁诱导型香豆素的合成、储存、分泌及其调控机制, 探讨了其促进植物铁吸收的分子机制。同时, 本文对该领域未来研究方向进行了初步展望。

关键词: 铁缺乏, 香豆素类化合物, 合成, 调控, 铁吸收

Abstract: Coumarins are a class of phenolic compounds with benzopyrone as the parent ring structure, which widely exist in higher plants. In recent years, studies have shown that root-secreted coumarins could promote iron absorption in plants. Here, the recent progress of the discovery and identification of genes related to the biosynthesis and regulation of plant root-secreted coumarins were reviewed, and the molecular mechanism of the biosynthesis, storage, secretion, and regulation of root-secreted coumarins was further elaborated. The mechanism of how coumarins could promote plant iron uptake also have been discussed. Finally, this paper gives a preliminary outlook on the future research directions to gain knowledge of these mechanisms, which could offer novel opportunities to generate iron deficiency tolerant crops and iron-biofortified crops

Key words: iron deficiency,, coumarin,, biosynthesis, regulation, iron uptake