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Microbacterium aurantiacum GX14001 promotes the growth of tomato plants by altering the microbial community structure in rhizosphere soil
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Peipei WU1, Xinle YE2, Liqun XIONG2, Jing FENG1
Acta Microbiologica Sinica | 2025, 65(5) : 2034 - 2048
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Acta Microbiologica Sinica | 2025, 65(5): 2034-2048
• Research Article •
Microbacterium aurantiacum GX14001 promotes the growth of tomato plants by altering the microbial community structure in rhizosphere soil
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Peipei WU1, Xinle YE2, Liqun XIONG2, Jing FENG1
Affiliations
  • 1.Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning, Guangxi, China
  • 2.School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning, Guangxi, China
Published: 2025-05-04 doi: 10.13343/j.cnki.wsxb.20240803
Outline
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As autotoxic substances secreted by plant roots, phenolic acids such as p-hydroxybenzoic acid (PHBA), are the main factors causing continuous cropping obstacles. [Objective] To study the effects of Microbacterium aurantiacum on the growth of tomato plants and the microbial community structure in rhizosphere soil under PHBA stress. [Methods] We irrigated tomato rhizosphere with the suspension of M. aurantiacum GX14001 and then measured the growth traits of tomato plants and the soil microbial community changes in the rhizosphere soil. [Results] Under the PHBA treatment, GX14001 significantly promoted the growth of tomato plants, increasing the leaf area, stem diameter, and plant height by 244.0%, 156.5%, and 128.0%, respectively. GX14001 increased the richness but did not cause changes in the diversity of bacteria in the rhizosphere soil. Meanwhile, it decreased the richness and diversity of fungi in the rhizosphere soil. At the phylum level, compared with the control group, the GX14001 group showed increased relative abundance of Actinobacteriota, Chloroflexi, and Proteobacteria, with Ascomycetes as the dominant fungal phylum. [Conclusion] M. aurantiacum GX14001 promotes the growth of tomato plants by changing the microbial community structure in the rhizosphere soil. It increases the relative abundance of beneficial microorganisms in the soil to create a favorable environment for tomato growth.

Microbacterium aurantiacum  /  tomato  /  rhizosphere soil  /  microbial community structure
Peipei WU, Xinle YE, Liqun XIONG, Jing FENG. Microbacterium aurantiacum GX14001 promotes the growth of tomato plants by altering the microbial community structure in rhizosphere soil[J]. Acta Microbiologica Sinica, 2025 , 65 (5) : 2034 -2048 . DOI: 10.13343/j.cnki.wsxb.20240803
Funding
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  • National Natural Science Foundation of China(32360024)
  • Natural Science Foundation of Guangxi Zhuang Autonomous Region(2023GXNSFBA026041)
  • Xiangsi Lake Youth Scholar Innovation Team of Guangxi Minzu University(2023GXUNXSHQN03)
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Year 2025 volume 65 Issue 5
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146
58
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Article Info
doi: 10.13343/j.cnki.wsxb.20240803
  • Receive Date：2024-12-12
  • Online Date：2026-02-05
  • Published：2025-05-04
Article Data
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History
  • Received：2024-12-12
  • Accepted：2024-12-27
Funding
National Natural Science Foundation of China(32360024)
Natural Science Foundation of Guangxi Zhuang Autonomous Region(2023GXNSFBA026041)
Xiangsi Lake Youth Scholar Innovation Team of Guangxi Minzu University(2023GXUNXSHQN03)
Affiliations
    1.Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning, Guangxi, China
    2.School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning, Guangxi, China

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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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