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.

Salvia miltiorrhiza Bge.  /  root-associated microorganisms  /  plant-microbe interaction  /  secondary metabolism  /  medicinal material quality