根系分泌物对作物养分吸收利用的影响研究进展
CSTR:
作者:
作者单位:

华中农业大学资源与环境学院/微量元素研究中心/农业农村部长江中下游耕地保育重点实验室,武汉 430070

通讯作者:

鲁剑巍,E-mail:lunm@mail.hzau.edu.cn

中图分类号:

Q945.12

基金项目:

财政部和农业农村部:国家现代农业产业技术体系(CARS-12);中央高校基本科研业务费专项(2662021ZH001)杜思垚,E-mail:dusiyao@webmail.hzau.edu.cn


Progress on effects of root exudates on nutrient uptake and utilization of crops
Author:
  • DU Siyao

    DU Siyao

    College of Resources and Environment,Huazhong Agricultural University/ Microelement Research Center/Ministry of Agriculture and Rural Affairs Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River),Wuhan 430070,China
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  • FANG Yating

    FANG Yating

    College of Resources and Environment,Huazhong Agricultural University/ Microelement Research Center/Ministry of Agriculture and Rural Affairs Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River),Wuhan 430070,China
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  • LU Jianwei

    LU Jianwei

    College of Resources and Environment,Huazhong Agricultural University/ Microelement Research Center/Ministry of Agriculture and Rural Affairs Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River),Wuhan 430070,China
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Affiliation:

College of Resources and Environment,Huazhong Agricultural University/ Microelement Research Center/Ministry of Agriculture and Rural Affairs Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River),Wuhan 430070,China

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  • 参考文献 [69]
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    摘要:

    根系分泌物是作物与土壤交流的主要媒介,对于土壤养分活化、作物养分吸收、作物生长等均有重要作用。为探究根系分泌物与作物、土壤和微生物之间的关系,利用不同的根系分泌物来实现种间促进、提高自然资源利用率和农业生产力,本文归纳总结了根系分泌物的分类、功能及对土壤养分(氮、磷、钾和铁)的活化、作物养分吸收和作物生长的影响,讨论了有关作物应对养分胁迫的不同机制,并提出研究展望:一是加强根系分泌物的鉴定手段,实现根系分泌物组分的原位无损伤鉴定和分析;二是运用多学科交叉知识进一步揭示根系分泌物所介导的作物养分高效利用的根土界面生物互作过程;三是加强验证根系分泌物影响植物应对生物和非生物胁迫的目标基因和微生物的功能定位研究,利用基因工程手段达到有效改善植物健康的目的;四是推进研究成果向科技应用转化的进程,利用仿生学原理将有益的根系分泌物应用到实际生产中。

    Abstract:

    Root exudates are the main medium of communication between crops and soil,play important roles in the activation of nutrients in soil,the nutrient uptake and growth of crops.This article summarized the classification and function of root exudates,and their effects on the activation of nutrients including nitrogen,phosphorus,potassium and iron in soil,the nutrient absorption and growth of crops to study the relationship between root exudates,crops,soil and microorganisms,and to use different root exudates to achieve interspecific promotion,improve the utilization rate of natural resources and agricultural productivity.The different mechanisms of crop response to nutrient stress were discussed.The prospects including strengthening the identification means of root exudates to realize the in-situ damage-free identification and analysis of root exudate components,using interdisciplinary knowledge to further reveal the root-soil interface biological interaction process of efficient utilization of crop nutrients mediated by root exudates,focusing on functional localization of target genes and microorganisms that verify that root exudates affect plant response to biotic and abiotic stresses,using genetic engineering to effectively improve plant health,promoting the process of transforming research results into scientific and technological applications,and applying beneficial root exudates to practical production via using bionics principle were put forward.

    表 2 不同根系分泌物对作物养分吸收的影响Table 2 Effects of different root exudates on plant nutrient uptake
    表 1 根系分泌物种类及有机化合物Table 1 Types and organic compounds of root exudates
    图1 根系分泌物对土壤氮矿化的影响(改自Sun等[34])Fig.1 Effects of root exudates on soil nitrogen mineralization(modified from the reference [34])
    图2 根系分泌物对土壤磷活化及作物磷吸收的影响(改自Chai等[40])Fig.2 Effects of root exudates on soil phosphorus activation and crop phosphorus uptake modified from the reference [40])
    图3 根系分泌物对土壤铁活化及植物铁吸收的影响(改自Chai等[40])Fig.3 Effects of root exudates on soil iron activation and plant iron absorption(modified from the reference [40])
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杜思垚,方娅婷,鲁剑巍.根系分泌物对作物养分吸收利用的影响研究进展[J].华中农业大学学报,2023,42(2):147-157

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  • 收稿日期:2022-12-06
  • 在线发布日期: 2023-03-31
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