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Article

Effect of Inoculation with Arbuscular Mycorrhizal Fungi (Rhizophagus irregularis BGC AH01) on the Soil Bacterial Community Assembly

by
Xueli Wang
1,
Xuemin Jing
2,3,
Yan Wang
4,
Youran Ma
5,
Xiangyang Shu
1,
Wei Fu
2,
Shuping Xing
6,
Weijia Liu
7,
Qinxin Ye
7,
Yalan Zhu
1,
Ping Ren
1,
Xin Zhang
2,8,*,
Baodong Chen
2,8 and
Xia Wang
1,2,*
1
The Key Laboratory of Land Resources Evaluation and Monitoring in Southwest China, College of Geography and Resources, Sichuan Normal University, Chengdu 610066, China
2
State Key Laboratory for Ecological Security of Regions and Cities, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
3
Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, School of Life Sciences, Heilongjiang University, Harbin 150080, China
4
School of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China
5
China Aerospace Construction Group Co., Ltd., Beijing 100071, China
6
Information Center of Ministry of Ecology and Environment, Beijing100029, China
7
Institute of Agricultural Bioenvironment and Energy, Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China
8
University of Chinese Academy of Sciences, Beijing 100049, China
*
Authors to whom correspondence should be addressed.
J. Fungi 2025, 11(10), 739; https://doi.org/10.3390/jof11100739 (registering DOI)
Submission received: 31 July 2025 / Revised: 19 September 2025 / Accepted: 29 September 2025 / Published: 15 October 2025
(This article belongs to the Section Environmental and Ecological Interactions of Fungi)
Versions Notes

Abstract

Soil bacterial communities are crucial drivers of nutrient cycling and ecosystem functioning; however, their temporal dynamics under arbuscular mycorrhizal (AM) fungi colonization remain insufficiently characterized. In this study, we used a non-destructive continuous sampling method and undertook a 90-day pot experiment to examine the process of shaping the bacterial community of hyphosphere soil. Following inoculation with AM fungi, we found an increase in the α-diversity index of the hyphosphere bacterial community. The community diversity and richness and the key bacterial taxa in the hyphosphere both gradually increased from 30 to 60 days and stabilized thereafter. Principal coordinated (PCoA) analysis and network analysis further confirmed these findings. Stabilized by 60 days post-inoculation, with deterministic processes dominating assembly in inoculated AM fungi soils, while stochastic processes prevailed in non-inoculated controls. Inoculation strengthened bacterial associations with available phosphorus, while making the key bacterial communities more responsive to multiple soil physicochemical properties (available P, CEC, N, and TOC). These findings provide critical insights into AM fungi mediation of soil microbiome dynamics, with the identified 60-day stabilization period offering a key temporal framework for understanding tripartite soil–AM fungi-bacteria interactions.
Keywords: arbuscular mycorrhizal fungi; Rhizophagus irregularis; bacterial community assembly; deterministic processes; temporal dynamics arbuscular mycorrhizal fungi; Rhizophagus irregularis; bacterial community assembly; deterministic processes; temporal dynamics

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MDPI and ACS Style

Wang, X.; Jing, X.; Wang, Y.; Ma, Y.; Shu, X.; Fu, W.; Xing, S.; Liu, W.; Ye, Q.; Zhu, Y.; et al. Effect of Inoculation with Arbuscular Mycorrhizal Fungi (Rhizophagus irregularis BGC AH01) on the Soil Bacterial Community Assembly. J. Fungi 2025, 11, 739. https://doi.org/10.3390/jof11100739

AMA Style

Wang X, Jing X, Wang Y, Ma Y, Shu X, Fu W, Xing S, Liu W, Ye Q, Zhu Y, et al. Effect of Inoculation with Arbuscular Mycorrhizal Fungi (Rhizophagus irregularis BGC AH01) on the Soil Bacterial Community Assembly. Journal of Fungi. 2025; 11(10):739. https://doi.org/10.3390/jof11100739

Chicago/Turabian Style

Wang, Xueli, Xuemin Jing, Yan Wang, Youran Ma, Xiangyang Shu, Wei Fu, Shuping Xing, Weijia Liu, Qinxin Ye, Yalan Zhu, and et al. 2025. "Effect of Inoculation with Arbuscular Mycorrhizal Fungi (Rhizophagus irregularis BGC AH01) on the Soil Bacterial Community Assembly" Journal of Fungi 11, no. 10: 739. https://doi.org/10.3390/jof11100739

APA Style

Wang, X., Jing, X., Wang, Y., Ma, Y., Shu, X., Fu, W., Xing, S., Liu, W., Ye, Q., Zhu, Y., Ren, P., Zhang, X., Chen, B., & Wang, X. (2025). Effect of Inoculation with Arbuscular Mycorrhizal Fungi (Rhizophagus irregularis BGC AH01) on the Soil Bacterial Community Assembly. Journal of Fungi, 11(10), 739. https://doi.org/10.3390/jof11100739

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