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ORIGINAL RESEARCH article

Front. Microbiol.
Sec. Terrestrial Microbiology
Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1510904
This article is part of the Research Topic Microbe Empowering Green Agriculture and Boosting Productivity and Quality View all 4 articles

Intercropping of Saccharum spp. with Dictyophora indusiata: effects on microbial communities and metabolite profiles during bagasse degradation

Provisionally accepted
Mingzheng Duan Mingzheng Duan 1,2Xiaojian Wu Xiaojian Wu 1*Shengfeng Long Shengfeng Long 1*Hairong Huang Hairong Huang 1*Xiang Li Xiang Li 1*Yijie Li Yijie Li 1*Chang Ning Li Chang Ning Li 1Bin Feng Bin Feng 3*Jiafu Chen Jiafu Chen 3*Defa Zhong Defa Zhong 3*Zhendong Chen Zhendong Chen 1*Wang Zeping Wang Zeping 1*
  • 1 Guangxi Academy of Agricultural Science, Nanning, Guangxi Zhuang Region, China
  • 2 Zhaotong University, Zhaotong, China
  • 3 Laibin Academy of Agricultural Sciences, Laibin, China

The final, formatted version of the article will be published soon.

    Background: Intercropping Saccharum spp. (sugarcane) with the fungus Dictyophora indusiata together with bagasse amendment represents an innovative circular agriculture method that can enhance soil health, boost sugarcane yields, and increase farm profitability. Understanding the process by which D. indusiata degrades bagasse is key to optimizing this method.Aims: This study aims to clarify the microbial and metabolic processes involved in bagasse degradation by D. indusiata in the sugarcane intercropping system. Methods: Chemical composition analysis, metabarcoding sequencing, and metabolomic profiling were conducted on D. indusiata-degraded bagasse (DIBA) and naturally degraded bagasse (BA).Results: Analysis of chemical composition revealed that only acid detergent fiber (ADF) and crude protein content differed significantly between the DIBA and BA treatments. Metabarcoding sequencing showed that DIBA significantly altered the bacterial and fungal communities, reducing microbial diversity. Metabolomic analysis indicated an enhancement of biological metabolism, particularly carbohydrate breakdown, in the DIBA treatment. Key metabolites, such as glucose, cellobiose, and D-mannose, were more abundant in DIBA samples. In addition, unique metabolites such as L-alanine, serine, and oxaloacetate were detected in the DIBA treatment, suggesting more efficient bagasse degradation compared with natural processes.The use of macrofungi such as D. indusiata can play a pivotal role in circular agriculture by transforming agricultural waste into valuable soil amendments. Future research should focus on the long-term impact of this system on soil quality and crop yield, as well as the underlying mechanisms, to further optimize intercropping systems and the use of fungi in agricultural waste management.

    Keywords: sugarcane, Bagasse, Dictyophora indusiata, metabarcoding, Metabolomics

    Received: 15 Oct 2024; Accepted: 07 Jan 2025.

    Copyright: © 2025 Duan, Wu, Long, Huang, Li, Li, Li, Feng, Chen, Zhong, Chen and Zeping. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Xiaojian Wu, Guangxi Academy of Agricultural Science, Nanning, 530007, Guangxi Zhuang Region, China
    Shengfeng Long, Guangxi Academy of Agricultural Science, Nanning, 530007, Guangxi Zhuang Region, China
    Hairong Huang, Guangxi Academy of Agricultural Science, Nanning, 530007, Guangxi Zhuang Region, China
    Xiang Li, Guangxi Academy of Agricultural Science, Nanning, 530007, Guangxi Zhuang Region, China
    Yijie Li, Guangxi Academy of Agricultural Science, Nanning, 530007, Guangxi Zhuang Region, China
    Bin Feng, Laibin Academy of Agricultural Sciences, Laibin, China
    Jiafu Chen, Laibin Academy of Agricultural Sciences, Laibin, China
    Defa Zhong, Laibin Academy of Agricultural Sciences, Laibin, China
    Zhendong Chen, Guangxi Academy of Agricultural Science, Nanning, 530007, Guangxi Zhuang Region, China
    Wang Zeping, Guangxi Academy of Agricultural Science, Nanning, 530007, Guangxi Zhuang Region, China

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