Insights into the Mechanisms of Microbiome and Metabolome Changes Mediated by Understory Interplanting Mode in

Overview

Journal Front Microbiol

Specialty Microbiology

Date 2023 Aug 28

PMID 37637191

Authors

Yue Wang

Jin Zhang

Jiabo Sun

Guoqing Li

Qian Wang

Yanxia Zhao

Changjian Ma

Jinlong Han

Affiliations

Soon will be listed here.

Abstract

Background: is an understory economic plant, and its dried rhizome is a traditional Chinese medicine. The purpose of this study was to connect the quality improvement of the understory plant with specific microorganisms.

Methods: Amplicon and metabolome sequencing were conducted for interplanted under three types of trees and in the field, and the relationship between the microbiome and secondary metabolism was explored.

Results: Principal component analysis (PCA) divided field cultivated and understory interplanted groups into two classes. A total of 95 different metabolites were found, with four expression patterns. The alpha diversity of rhizosphere bacteria and endosphere fungi in the understory interplanted group was significantly higher than that in the farmland cultivated group. There were 276 different rhizosphere microorganism genera among the four groups; however, only 33 different endosphere genera were observed, indicating that endophytic microbial diversity was relatively stable within the rhizome, especially for endosphere bacteria. Cointertia analysis (CoIA) suggested that the metabolite changes in induced by interplanting under different trees were more strongly affected by rhizosphere microorganisms than by endosphere microorganisms. In addition, the interactions between rhizosphere microorganisms and metabolites in the farmland group were weakened compared with those in the underplanted groups. Canonical correspondence analysis (CCA) showed that and had the greatest influence on the metabolites. , as a shared microbe in the rhizosphere and endosphere, had interaction effects with the largest number of microbes.

Conclusion: This study revealed the interactions between the microbes and metabolites in and systematically explored the mechanism underlying their correlation, which was mediated by the understory interplanting mode. This study provides feasible strategies for improving the medicinal value of by regulating microorganisms.

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