[关键词]
[摘要]
植物相关微生物作为植物整体的重要组成部位影响植物的健康和存活,因而备受关注。丹参Salvia miltiorrhiza的生长发育、活性成分积累及病害防控过程与根部微生物互作密切相关。已有研究表明,根际及内生微生物可通过调节植物激素水平、信号通路及关键代谢酶活性,促进酚酸类和丹参酮类次生代谢产物的合成,并增强植株抗逆性与药材品质;丛枝菌根真菌、促生细菌及拮抗真菌在缓解连作障碍、抑制土传病原菌及维持根际生态平衡方面发挥重要作用。在系统梳理相关研究的基础上,重点从丹参根部微生物的组成类型、功能作用及丹参与微生物相互作用机制等进行综述,并讨论其在丹参种植中的应用潜力。最后,对当前研究中存在的问题及未来发展方向进行展望,为丹参种植的微生态调控及丹参功能微生物的开发与利用提供参考。
[Key word]
[Abstract]
Plant-associated microorganisms, as important components of the plant holobiont, affect the health and survival of plants and thus have attracted much attention. The growth and development of medicinal plant Salvia miltiorrhiza, the accumulation of active ingredients, and the process of disease control are closely related to the interaction with root microorganisms. Previous studies have shown that rhizosphere and endophytic microorganisms can promote the synthesis of phenolic acids and tanshinones, secondary metabolites, by regulating plant hormone levels, signal pathways, and the activity of key metabolic enzymes, and enhance the plant stress resistance and medicinal material quality. Arbuscular mycorrhizal fungi, plant growth-promoting bacteria, and antagonistic fungi play significant roles in alleviating continuous cropping obstacles, inhibiting soil-borne pathogens, and maintaining rhizosphere ecological balance. Based on a systematic review of relevant research literature, this article focuses on summarizing the composition types, functional roles, and interaction mechanisms between S. miltiorrhiza and root microorganisms, and discusses their application potential of these microbes in S. miltiorrhiza cultivation. Finally, this paper discusses the existing problems in the current research and the future development directions, aiming to provide references for the microecological regulation of S. miltiorrhiza cultivation and the development and utilization of functional microorganisms of S. miltiorrhiza.
[中图分类号]
R282
[基金项目]
山东省泰山学者青年专家项目(Tsqn202211233)