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Biocontrol evaluation of Streptomyces TOR3209 and its volatile organic compounds against tomato Fusarium wilt
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Linlin ZHAO1, 2, Xiumin ZHANG1, Yuxi HE2, Jia MA2, Mengyi ZHANG2, 3, Xu WANG2, Nan JIA2, Jieli PENG2, *, Dong HU2, *
Acta Microbiologica Sinica | 2026, 66(1) : 231 - 245
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Acta Microbiologica Sinica | 2026, 66(1): 231-245
• Research Article •
Biocontrol evaluation of Streptomyces TOR3209 and its volatile organic compounds against tomato Fusarium wilt
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Linlin ZHAO1, 2, Xiumin ZHANG1, Yuxi HE2, Jia MA2, Mengyi ZHANG2, 3, Xu WANG2, Nan JIA2, Jieli PENG2, *, Dong HU2, *
Affiliations
  • 1.College of Life Sciences, Hebei University, Baoding, Hebei, China
  • 2.Hebei Key Laboratory of Soil Fertility Improvement and Agricultural Green Development, Institute of Agro-resources and Environment, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, Hebei, China
  • 3.College of Agronomy, Hebei Agricultural University, Baoding, Hebei, China
Published: 2026-01-04 doi: 10.13343/j.cnki.wsxb.20250483
Outline
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[Objective] To explore the control effects of Streptomyces TOR3209 and its volatile organic compounds (VOCs) on tomato Fusarium wilt and mine the differentially expressed genes related to disease resistance, thus providing effective strategies for the development of environmentally friendly biofungicides. [Methods] Strain TOR3209 suspensions of different concentrations (1.0×101, 1.0×103, 1.0×105, and 1.0×107 CFU/mL) were co-cultured with tomato seedlings, and Fusarium equiseti was inoculated on the seedlings. The disease severity was graded. The co-culture experiment of VOCs from strain TOR3209 with tomato seedlings was conducted in a micro-greenhouse to evaluate the effect of VOCs on tomato seedlings infected by F. equiseti. Transcriptomic analysis was conducted on tomato seedlings with significant disease resistance to mine the differentially expressed genes induced by VOCs, which were then verified by RT-qPCR. [Results] The suspensions of strain TOR3209 at different concentrations all had control effects on tomato Fusarium wilt. Among them, the 1.0×107 CFU/mL suspension had the best control effect (P<0.01). The biocontrol effects of different quantities of small dishes cultured with strain TOR3209 on tomato Fusarium wilt were significantly different from that of the control group. The group of 30 small dishes showed the best control effect (P<0.01). The transcriptomic analysis showed that the expression levels of disease-resistance genes encoding CXE17, LRR-RLK, F-box, TIP1-1 Aquaporin, and Peroxidase were upregulated. Fluorescence quantitative analysis indicated that co-culture of VOCs from the strain with tomato seedlings upregulated the expression levels of disease-resistance genes, indicating that the transcriptomic sequencing results were reliable. [Conclusion] The VOCs of strain TOR3209 effectively prevent and control tomato Fusarium wilt caused by F. equiseti infection by inducing the upregulated expression of disease-resistance genes in tomato seedlings. The findings lay a theoretical foundation for the research and development of biofungicides for the prevention and control of Fusarium wilt.

tomato  /  Streptomyces TOR3209  /  Fusarium wilt  /  biocontrol
Linlin ZHAO, Xiumin ZHANG, Yuxi HE, Jia MA, Mengyi ZHANG, Xu WANG, Nan JIA, Jieli PENG, Dong HU. Biocontrol evaluation of Streptomyces TOR3209 and its volatile organic compounds against tomato Fusarium wilt[J]. Acta Microbiologica Sinica, 2026 , 66 (1) : 231 -245 . DOI: 10.13343/j.cnki.wsxb.20250483
Funding
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  • National Key Research and Development Program of China(2021YFD1900904)
  • National Natural Science Foundation of China(32270020)
  • Special Project of Scientific and Technological Innovation of Hebei Academy of Agriculture and Forestry Sciences(2022KJCXZX-ZHS-3)
Appendix
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Year 2026 volume 66 Issue 1
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Article Info
doi: 10.13343/j.cnki.wsxb.20250483
  • Receive Date：2025-06-20
  • Online Date：2026-01-12
  • Published：2026-01-04
Article Data
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History
  • Received：2025-06-20
  • Accepted：2025-07-31
Funding
National Key Research and Development Program of China(2021YFD1900904)
National Natural Science Foundation of China(32270020)
Special Project of Scientific and Technological Innovation of Hebei Academy of Agriculture and Forestry Sciences(2022KJCXZX-ZHS-3)
Affiliations
    1.College of Life Sciences, Hebei University, Baoding, Hebei, China
    2.Hebei Key Laboratory of Soil Fertility Improvement and Agricultural Green Development, Institute of Agro-resources and Environment, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, Hebei, China
    3.College of Agronomy, Hebei Agricultural University, Baoding, Hebei, China

Corresponding:

*E-mail: HU Dong,
PENG Jieli,
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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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