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ORIGINAL RESEARCH article

Front. Microbiol.
Sec. Microbe and Virus Interactions with Plants
Volume 15 - 2024 | doi: 10.3389/fmicb.2024.1448675

Deciphering differences in microbial community characteristics and main factors between healthy and root rot-infected Carya cathayensis rhizosphere soils

Provisionally accepted
Wei Fang Wei Fang YiYang zhu YiYang zhu Chenfei Liang Chenfei Liang shuai shao shuai shao Junhui Chen Junhui Chen Hua Qin Hua Qin Qiufang Xu Qiufang Xu *
  • Zhejiang Agriculture and Forestry University, Hangzhou, China

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

    Fusarium-induced root rot of Carya cathayensis(C. cathayensis) is a typical soil-borne disease that has severely damaged the Carya cathayensis industry in China. Understanding the interaction among soil microbial communities, soil characteristics, and pathogenic bacteria is very important for the ecological prevention and control of Carya cathayensis root rot. We used Miseq Illumina highthroughput sequencing technology to study the microbial community in the rhizosphere soil of healthy and diseased Carya C. cathayensis, quantified the abundance of bacteria, fungi, and pathogenic fungibacteria, and combined these with soil chemistry and enzyme activity indicators to analyze the characteristics of healthy and diseased rhizosphere soils. We found that the pH 、 soil organic carbon(SOC)、available nitrogen (AN)AN、available phosphorus (AP)AP、available potassium (AK)AK、N-acetyl-β-D-glucosaminidase (NAG)NAG、β-glucosidase (BG)BG、 fungal gene copy numberfungal abundance、bacterial community diversity and network complexity of the diseased soil were significantly lower(P <0.05), while Fusarium graminearum copies number levels increased(P <0.05). Additionally, the study found that healthy soils were enriched with beneficial bacteria such as Subgroup_7(0.08%), MND1(0.29%), SWB02(0.08%), and Bradyrhizobium(0.09%), as well as potential pathogen-suppressing fungi such as Mortierella(0.13%), Preussia(0.03%), and Humicol(0.37%), were found to be associated with the growth and development of Carya C. cathayensis. In summary, this research comprehensively reveals the differences in environmental and biological factors between healthy and diseased soils, as well as their correlations. It provides a theoretical basis for optimal soil environmental regulation and the construction of healthy microbial communities. This foundation facilitates the development of multifaceted strategies for the prevention and control of Carya C. cathayensis root rot.

    Keywords: Soil healthCarya cathayensis root rot, Chemical properties, Soil multifunctionalitySoil microbial communities, Pathogenic fungiSoil health indicators, keystone species

    Received: 13 Jun 2024; Accepted: 28 Oct 2024.

    Copyright: © 2024 Fang, zhu, Liang, shao, Chen, Qin and Xu. 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: Qiufang Xu, Zhejiang Agriculture and Forestry University, Hangzhou, China

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