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ORIGINAL RESEARCH article

Front. Microbiol.
Sec. Microbe and Virus Interactions with Plants
Volume 15 - 2024 | doi: 10.3389/fmicb.2024.1415700
This article is part of the Research Topic Tobacco Disease and Biological Control View all 8 articles

Using Fungal-Bacterial Community Analysis to Explore Potential Microbiomes to Manage

Provisionally accepted
QIpeng Jiang QIpeng Jiang 1Yong Wang Yong Wang 2Jiamin Yu Jiamin Yu 3Jinfeng Wang Jinfeng Wang 1Shiping Guo Shiping Guo 3Dongyang Liu Dongyang Liu 2Xiangwen Yu Xiangwen Yu 3Lianqiang Jiang Lianqiang Jiang 2Gang Long Gang Long 2Daojiang Xi Daojiang Xi 1Shuhong Chen Shuhong Chen 2Yue Wang Yue Wang 1Wei Ding Wei Ding 1*
  • 1 Southwest University, Chongqing, China
  • 2 Liangshan Branch of Sichuan Tobacco Company, Xichang, China
  • 3 Sichuan Branch of China Tobacco Corporation, Chengdu, Sichuan Province, China

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

    Rhizosphere microbial communities strongly affect outbreaks of root-knot nematode (RKN) disease. However, little is known about the interactions among fungi, bacteria and RKN. The bacterial and fungal community compositions in the rhizospheres of four representative tobacco varieties, both resistant and susceptible to RKN, were characterized using 16S rRNA gene sequencing for bacteria and internal transcribed spacer gene sequencing for fungi. Our findings revealed that the fungi played crucial roles in facilitating the cross-kingdom and symbiotic fungal-bacterial interactions to suppress RKN. Moreover, our investigation suggested Microbacterium as a potential microbial antagonist against RKN based on its enhanced presence in RKN-resistant tobacco genotypes, and the relative abundance of Microbacterium was 34.49% greater in the rhizosphere of resistant tobacco than that of susceptible tobacco significantly.Notably, the richness of fungal community enhanced tobacco's microbe-associated resistance to RKN through the positive regulation of the richness and diversity of bacterial community and the relative abundance of Microbacterium. This study underscores the critical role of the fungus-dominated fungal-bacterial community in bolstering tobacco resistance against RKN. The potential antagonistic role of Microbacterium presents promising avenues for innovative RKN management strategies.

    Keywords: Root-knot nematodes, Microbacterium, Fungal-bacterial interaction, tobacco resistance, Co-occurrence network

    Received: 11 Apr 2024; Accepted: 10 Oct 2024.

    Copyright: © 2024 Jiang, Wang, Yu, Wang, Guo, Liu, Yu, Jiang, Long, Xi, Chen, Wang and Ding. 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: Wei Ding, Southwest University, Chongqing, China

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