Understanding the microbiome–crop rotation nexus in karst agricultural systems: insights from Southwestern China

Bibliographic Details
Title: Understanding the microbiome–crop rotation nexus in karst agricultural systems: insights from Southwestern China
Authors: Bin Wang, Nianjie Shang, Xinwei Feng, Zongling Hu, Pengfei Li, Yi Chen, Binbin Hu, Mengjiao Ding, Junju Xu
Source: Frontiers in Microbiology, Vol 16 (2025)
Publisher Information: Frontiers Media S.A., 2025.
Publication Year: 2025
Collection: LCC:Microbiology
Subject Terms: crop rotation, soil microbial communities, karst agricultural system, soil physicochemical properties, microbiome assembly, Microbiology, QR1-502
More Details: Understanding how soil properties and microbial communities respond to crop rotation is essential for the sustainability of agroecosystems. However, there has been limited research on how crop rotation alters below-ground microbial communities in soils with serious bacterial wilt within the karst agricultural system. This study investigated the effects of continuous planting of corn, tobacco, and tobacco–corn rotation on soil microbial communities in the karst regions of Southwestern China. High-throughput sequencing was used to evaluate the responses of the soil microbial community structure to crop monoculture and rotation patterns. As expected, the tobacco–corn rotation mitigated the negative effects of continuous cropping and reduced soil acidification. The tobacco–corn rotation also significantly altered the composition of microbial communities and promoted plant growth by fostering a higher abundance of beneficial microorganisms. The predominant bacteria genera Sphingomonas and Gaiella and the predominant fungal genera Mortierella and Saitozyma were identified as discriminant biomarkers that are critical to soil ecosystem health. pH, available potassium (AK), and available phosphorus (AP) were the primary soil factors related to the soil microbiome assembly. This study aimed to demonstrate the association between crop rotation and microbiomes, suggesting that altering cultivation patterns could enhance karst agricultural systems.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-302X
Relation: https://www.frontiersin.org/articles/10.3389/fmicb.2025.1503636/full; https://doaj.org/toc/1664-302X
DOI: 10.3389/fmicb.2025.1503636
Access URL: https://doaj.org/article/07bd338ba0dc466f8a36b4fb01f7e540
Accession Number: edsdoj.07bd338ba0dc466f8a36b4fb01f7e540
Database: Directory of Open Access Journals
More Details
ISSN:1664302X
DOI:10.3389/fmicb.2025.1503636
Published in:Frontiers in Microbiology
Language:English