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| Screening and Identification of an Antagonistic Bacteria against Ginseng Cylindrocarpon Destructans and Its Effect on Microbial Diversity in Ginseng Rhizosphere Soil |
ZHANG Jiejing1, CHEN Deguo1, GAO Jixuan1, ZHANG Jianfeng1, TIAN Chunjie1,2, TIAN Lei2** |
| 1. College of Life Sciences, Jilin Agricultural University, Key Laboratory for Straw Biology and Utilization of the Ministry of Education, Changchun 130118, China; 2. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China |
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Abstract The pesticide residues of ginseng will exceed the standard and affect the medicinal value of ginseng.It is one of the potential biological control measures to use biocontrol bacteria to control ginseng diseases.A biocontrol bacterium C10 was isolated from ginseng rhizosphere soil by soil dilution method.It was identified as Bacillus amyloliquefaciens. The results showed that the antibacterial rate of the strain was 80.95%. The results showed that Bacillus amyloliquefaciens C10 could significantly reduce the infection of rust rot fungi on ginseng stems and roots. In addition, microbial diversity analysis showed that inoculation of Bacillus amyloliquefaciens C10 significantly reduced the richness index of fungi in ginseng rhizosphere soil. It can be seen that the use of this fungus has a positive effect on the prevention and control of ginseng rust rot.
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Received: 05 June 2019
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