| Screening and identification of biocontrol strains for major diseases of Zanthoxylum bungeanum in Shaanxi Province |
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| DOI：10.7606/j.issn.1000-7601.2024.02.24 |
| Key Words: Zanthoxylum bungeanum rhizosphere soil biocontrol bacteria screening identification inhibitory activity |
| Author Name | Affiliation | | FU Xiao | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China | | DING Junyuan | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China | | JIAO Jiahui | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China | | ZHONG Siyu | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China | | SUN Mengjiao | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China | | FU Jiajia | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China | | TANG Guanghui | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China | | LI Peiqin | Forestry College, Northwest A&F University, Key Laboratory of National Forestry and Grassland Administration on Management of Forest Bio\|Disaster, Yangling, Shaanxi 712100, China |
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| Abstract: |
| To develop biocontrol microbial resources for major diseases of Chinese prickly ash in Shaanxi Province, this study isolated and cultured microorganisms from the rhizosphere soil of Zanthoxylum bungeanum in Feng County, Baoji City, Shaanxi Province and determined their antifungal activity against four target pathogens of Zanthoxylum bungeanum, i.e., Fusarium zanthoxyli, Phytophthora citrophthora, F. solani and Marssonina sp. The results showed that a total of 297 microbial strains were isolated from the rhizosphere soil of prickly ash, including 105 fungi and 192 bacteria. After initial screening, 20 bacterial strains with significant antagonistic effects on three or more target pathogens were obtained. Through morphological and 16S rDNA sequence analysis, seven were identified as Bacillus velezensis, five as B. amyloliquefaciens, three as different species of Burkholderia genus, two as Flavobacterium anhuiense and three other species. After re\|screening and verification, it was found that B. velezensis P87 had the strongest biocontrol potential, making it a viable alternative for biological control of Zanthoxylum bungeanum diseases. |
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