植物学报 ›› 2020, Vol. 55 ›› Issue (6): 788-796.DOI: 10.11983/CBB20036

• 专题论坛 • 上一篇    

植物根系分泌物主要生态功能研究进展

李佳佳, 樊妙春*(), 上官周平*()   

  1. 西北农林科技大学, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨凌 712100
  • 收稿日期:2020-03-05 接受日期:2020-09-08 出版日期:2020-11-01 发布日期:2020-11-11
  • 通讯作者: 樊妙春,上官周平
  • 作者简介:shangguan@ms.iswc.ac.cn
    *E-mail: fanmc16@126.com;
  • 基金资助:
    陕西省林业科技创新计划(SXLK2020-0101);国家自然科学基金(41771549);国家自然科学基金(42077452)

Research Advances in the Main Ecological Functions of Root Exudates

Jiajia Li, Miaochun Fan*(), Zhouping Shangguan*()   

  1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
  • Received:2020-03-05 Accepted:2020-09-08 Online:2020-11-01 Published:2020-11-11
  • Contact: Miaochun Fan,Zhouping Shangguan

摘要: 根系分泌物在植物根系-土壤-微生物互作过程及其生态反馈机制中发挥重要作用。在植物根际复杂网络互作过程中, 根系分泌物被认为是“根际对话”的媒介, 其在调控植物适应微生境、缓解根际养分竞争及构建根际微生物群落结构方面意义重大。该文结合国内外该领域主要研究成果, 综述了根系分泌物对植物生长、土壤微生物特性及土壤养分循环的影响, 并展望了未来根系分泌物的研究方向。

关键词: 根际, 根系分泌物, 土壤微生物, 碳循环

Abstract: Root exudates play an important role in root-soil-microorganism interactions and ecological feedback mechanisms. Root exudates are considered as the medium of “rhizosphere dialogue” in the process of complex plant rhizosphere network interaction, with great impact in regulating plant adaptation to microhabitats, thus alleviating rhizosphere nutrient competition and constructing rhizosphere microbial community structure. Here, we review the recent advances on the effects of root exudates on plant growth, soil microbial characteristics such as soil enzymes, microbial biomass, and microbial community, and soil nutrient circulation. We also propose the important directions and contents of future research on root exudates.

Key words: rhizosphere, root exudates, soil microorganisms, carbon cycle