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Synergistic Effect of Phosphate-solubilizing Bacillus cereus and Biocontrol Bacillus velezensis
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Ruicheng WANG1, 2, You ZHOU2, Yongquan TA2, Tianming YANG2, Meng CHEN2, Jun WANG2, Yang YANG2, Changcong LIANG2, Shuhua ZHANG1, *, Laying YANG2, *
Chinese Journal of Tropical Crops | 2025, 46(5) : 1217 - 1225
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Chinese Journal of Tropical Crops | 2025, 46(5): 1217-1225
• Plant Protection & Bio-safety •
Synergistic Effect of Phosphate-solubilizing Bacillus cereus and Biocontrol Bacillus velezensis
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Ruicheng WANG1, 2, You ZHOU2, Yongquan TA2, Tianming YANG2, Meng CHEN2, Jun WANG2, Yang YANG2, Changcong LIANG2, Shuhua ZHANG1, *, Laying YANG2, *
Affiliations
  • 1.School of Life Science and Technology, Changchun University of Science and Technology, Changchun, Jilin 130022, China
  • 2.Institute of Environmental and Plant Protection, Chinese Academy of Tropical Agricultural Sciences / National Key Laboratory of Biological Breeding of Tropical Crops / Key Laboratory of Comprehensive Pest Management of Tropical Crops, Ministry of Agriculture and Rural Affairs / National Fertilizer Microbial Germplasm Bank (Hainan) / Tropical Agricultural Microbial Species Library of Hainan Province, Haikou, Hainan 571101, China
Published: 2025-05-25 doi: 10.3969/j.issn.1000-2561.2025.05.020
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Cowpea Fusarium wilt caused by Fusarium oxysporum f.sp. tracheiphilum occurs in almost all cowpea growing areas, and the yield loss can be as high as 70% in major domestic producing areas such as Hainan. Currently, chemical control measures are the primary management strategy in China. The use of microbial biocontrol agents can reduce the application of agrochemicals and mitigate the risks of pesticide residues, and has been widely adopted for the management of soil-borne diseases. However, there is limited research on the use of multi-functional microbial consortia for the biocontrol of Fusarium wilt in cowpea. In this study, we screened highly efficient phosphate-solubilizing bacteria (PSB) using the molybdenum-antimony colorimetric method, and evaluated the synergistic effects of the selected PSB strain and the antagonistic Bacillus velezensis strain on cowpea growth and Fusarium wilt control. From 10 phosphate-solubilizing bacterial isolates, we identified B. cereus LMSY3PSB-2-2 (abbreviated as P) as a highly efficient PSB strain. The optimal ratio of the PSB strain P to the biocontrol strain B. velezensis X5 was determined to be 2∶1. Compared to the individual application of the PSB strain P or the biocontrol strain X5, the composite inoculum at this ratio significantly enhanced cowpea seed germination, plant growth, and root vigor. Under pot experiments, the composite inoculum achieved a 96% disease control effect against Fusarium wilt and increased the available soil phosphorus content by 19%. The results would provide a theoretical guide for utilizing the PSB strain P and the antagonistic strain X5 in a microbial consortium to promote cowpea growth and control Fusarium wilt, laying a foundation for the development of multi-functional composite microbial products to support sustainable agriculture.

cowpea Fusarium wilt disease  /  phosphate-solubilizing bacteria (PSB)  /  Bacillus velezensis  /  growth-promoting effects  /  disease control efficacy
Ruicheng WANG, You ZHOU, Yongquan TA, Tianming YANG, Meng CHEN, Jun WANG, Yang YANG, Changcong LIANG, Shuhua ZHANG, Laying YANG. Synergistic Effect of Phosphate-solubilizing Bacillus cereus and Biocontrol Bacillus velezensis[J]. Chinese Journal of Tropical Crops, 2025 , 46 (5) : 1217 -1225 . DOI: 10.3969/j.issn.1000-2561.2025.05.020
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Article Info
doi: 10.3969/j.issn.1000-2561.2025.05.020
  • Receive Date：2024-12-16
  • Online Date：2026-06-26
  • Published：2025-05-25
Article Data
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History
  • Received：2024-12-16
  • Accepted：2025-01-21
Funding
Affiliations
    1.School of Life Science and Technology, Changchun University of Science and Technology, Changchun, Jilin 130022, China
    2.Institute of Environmental and Plant Protection, Chinese Academy of Tropical Agricultural Sciences / National Key Laboratory of Biological Breeding of Tropical Crops / Key Laboratory of Comprehensive Pest Management of Tropical Crops, Ministry of Agriculture and Rural Affairs / National Fertilizer Microbial Germplasm Bank (Hainan) / Tropical Agricultural Microbial Species Library of Hainan Province, Haikou, Hainan 571101, China
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https://castjournals.cast.org.cn/joweb/rdzwxb/EN/10.3969/j.issn.1000-2561.2025.05.020
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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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