浙江大学学报（农业与生命科学版）2025，Vol.51Issue(3)：337-349,13.DOI:10.3785/j.issn.1008-9209.2024.02.021
植物根系内皮层凯氏带形成的分子机制及对矿质养分转运调控综述
Review on molecular mechanisms of Casparian strip formation in root endodermal cells and its regulatory roles in mineral nutrient transport
摘要
Abstract
Plants rely on their roots to absorb water and mineral nutrients from the soil to ensure their growth and development.To cope with various soil environments,plants form a hydrophobic ring-like structure called the Casparian strip(CS)in the cell walls of the endodermal cells of their root systems.This structure serves as a physical barrier to apoplastic transport for the selective absorption and transport of water and nutrients from the soil solution.Casparian strip functions to prevent harmful substances from entering the stele;also,it limits the leakage of mineral nutrients within the vascular tissue.In the last decade,extensive studies have been conducted to investigate the specialized cell wall structure,and many breakthroughs have been achieved,including the discovery of key genes as well as molecular regulatory networks for CS formation;in parallel,the physiological roles of this apoplastic barrier in mineral nutrient translocation have been elucidated benefit from the availability of CS disruptive mutants.Here,we summarize the advances in structural characteristics,functions,and research methods of CS,highlight three major molecular pathways involved in CS formation,the conserved and diversified regulatory characteristics of CS in mineral nutrient transport among plants,and look ahead to research trends in CS formation and its contribution to mineral nutrient transport in crop plants.关键词
凯氏带/质外体运输/质外体屏障/养分转运Key words
Casparian strip/apoplastic transport/apoplastic diffusion barrier/nutrient transport分类
农业科技引用本文复制引用
肖伊辉,冯志航,赖雨秋,陈慧婷,李保海..植物根系内皮层凯氏带形成的分子机制及对矿质养分转运调控综述[J].浙江大学学报（农业与生命科学版）,2025,51(3):337-349,13.基金项目
国家自然科学基金区域创新发展联合基金重点项目(U21A20234) （U21A20234）
国家自然科学基金青年科学基金项目(32302658) （32302658）
中国博士后科学基金面上项目(2023M743074). （2023M743074）
