农业研究与应用2026，Vol.39Issue(2)：222-231,10.DOI:10.20191/j.cnki.2095-0764.2026.02.006
丛枝菌根真菌在植物磷胁迫响应中的作用与机制研究进展
Advances in Research on the Role and Mech-anism of Arbuscular Mycorrhizal Fungi in Plant Phosphorus Stress Response
摘要
Abstract
The limited bioavailability of phosphorus(P)in soil is a major constraint on global agricultural productivity.Arbuscular mycorrhizal fungi(AMF)form symbioses with plants,which provide a key natural strategy for alleviating phosphorus deficiency.This review systematically sum-marized the molecular regulatory pathways by which plant-AMF interactions improve phosphorus use efficiency.This interaction is driven by bidirectional signaling and nutrient exchange.Under low phosphorus conditions,plants activate core transcription factors,particularly the phosphate starva-tion response proteins.These proteins induce the biosynthesis and exudation of strigolactones(SLs),which recruit AMF and promote root colonization.Concurrently,AMF perceive host-de-rived signals and expand extensive extraradical hyphal networks that explore soil beyond the rhizo-sphere.These hyphae enhance phosphorus acquisition by accessing sparingly available phosphate pools and facilitating delivery to roots,where uptake is mediated by mycorrhiza-induced high-affini-ty phosphate transporters of the PHT1 family.This synergistic relationship enhances plant phospho-rus uptake and increases tolerance to multiple abiotic stresses.This review aimed to summarize the regulatory network controlling the symbiosis,spanning signal perception and establishment through nutrient transport.Furthermore,we propose future research directions and application strategies,in-cluding(1)deep analysis of molecular regulatory networks within tripartite plant-AMF-soil mi-crobe interactions,(2)translation of mechanistic insights into breeding or genetic engineering to de-velop crop varieties with enhanced AMF compatibility,and(3)accelerating development and de-ployment of high-efficacy AMF inoculants.These strategies provide a theoretical foundation and practical pathways to reduce dependence on chemical phosphate fertilizers,thereby supporting food security and sustainable agriculture.关键词
磷胁迫/丛枝菌根真菌/磷吸收/分子机制/协同作用Key words
Phosphorus stress/AMF/phosphorus uptake/molecular mechanisms/synergistic effect分类
农业科技引用本文复制引用
林明智,蔡杰,刘沁芸,张洁..丛枝菌根真菌在植物磷胁迫响应中的作用与机制研究进展[J].农业研究与应用,2026,39(2):222-231,10.基金项目
国家自然科学基金项目(32472235) （32472235）
海南省自然科学基金项目(322QN397). （322QN397）
