根系分泌物提高土壤磷有效性研究概述  

Root Exudates Improving Soil Phosphorus Availability:A Review

作　　者：黄雨轩 游欣 张林平[1,2] 吴斐 张扬 黄绍华[1,2] HUANG Yu-xuan;YOU Xin;ZHANG Lin-ping;WU Fei;ZHANG Yang;HUANG Shao-hua(Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Wastershed,Jiangxi Agricultural University,Nanchang 330045,Jiangxi,China;Jiangxi Provincial Key Laboratory of Conservation Biology,Jiangxi Agricultural University,Nanchang 330045,Jiangxi,China;College of Life Sciences,Northwest Normal University,Lanzhou 730070,Gansu,China)

机构地区：[1]江西农业大学鄱阳湖流域森林生态系统保护与修复国家林业和草原局重点实验室,江西南昌330045 [2]保护生物学江西省重点实验室,江西南昌330045 [3]西北师范大学生命科学学院,甘肃兰州730070

出　　处：《林业科学研究》2024年第4期193-203,共11页Forest Research

基　　金：国家自然科学基金(32260377,31660189,32001297,32160357)。

摘　　要：磷是植物生长过程中所必需的矿质营养元素,在植物生长发育过程起重要作用。尽管大多数土壤具有足够的总磷储量,但土壤中的有机磷与无机磷大多表现出了低溶解度和低有效性,导致土壤可利用磷含量极低。植物根系分泌物是土壤界面能量、物质和信息传递的重要媒介,可以直接活化土壤无效态磷,也可以通过招募根际微生物间接提高土壤磷的生物有效性。本文结合国内外已有研究,阐明不同根系分泌物提高土壤磷有效性的潜在作用机制,论述根系分泌物如何招募根际微生物促进土壤磷活化,并对未来研究方向进行展望。以期为解析植物磷高效利用机理和培育磷高效利用品种提供理论基础。Phosphorus is an essential mineral nutrient element that plays an important role in plant growth and development.Although most soils have sufficient total phosphorus reserves,most of the organic and inorganic phosphorus in the soil exhibit low solubility and low available,leading to the extremely low soil available phosphorus content.Plant root exudates are important mediators linking energy,matter and information transfer at the interface between the plant root system and the soil.They can directly regulate the activation of soil ineffective phosphorus,and also can indirectly improve the bioavailability of soil phosphorus by recruiting inter-root microorganisms.In this paper,the potential mechanisms of different root exudates to improve soil phosphorus effectiveness are elucidated,and how root exudates can recruit inter-root microorganisms to promote soil phosphorus activation is discussed in the light of the existing studies at home and abroad.Meanwhile,the future research direction is also prospected.It will provide a theoretical basis for analyzing the mechanism of efficient plant phosphorus utilization and cultivating phosphorus efficient varieties.

关 键 词：土壤磷 根系分泌物 有机酸 根际微生物 

分 类 号：S714[农业科学—林学]