根系分泌物介导的根际效应及在水体生态修复中的应用潜力

文章主要以根系分泌物为核心, 综述了根系分泌物的分类、发生机理及影响因素; 围绕着植物-土壤-微生物三者的关系, 阐述了根系分泌物介导的植物与植物之间的化感作用、植物与根际微生物之间的协同作用以及植物微生物相互作用对土壤物质循环的影响。水生植物以其生境的特殊性和功能的不可替代性, 对沉积物污染物去除和水体生态修复产生显著的影响。在水体生态问题较为严峻的今天, 充分认识水生植物根系分泌物介导的根际过程将为水生植物生态学和水体生态修复领域的发展提供基础, 并为学科应用潜力的开发提供依据。

ROOT EXUDATES MEDIATED RHIZOSPHERIC EFFECT AND ITS POTENTIAL APPLICATION IN WATERBODY ECOLOGICAL REHABILITATION

The categories, secretion mechanisms and influencing factors of root exudates were reviewed. Allelopathy between different plant species, synergy between plant and rhizosphere microorganisms and the effect of plant-microorganism interaction on soil material cycle were described based on the interaction among plants, soil and microbes. Aquatic plants have a significant impact on sediment remediation and water ecological restoration due to their distinctive habitat and the irreplaceable functions. Due to the severe water ecological problems, a full understanding of the rhizosphere process mediated by aquatic plant root exudates provided a basis for the development of aquatic plant ecology and water ecological restoration, which promote the development potential of disciplinary application.