Application of sophora tonkinensis endophytic bacterium B22 in preventing and controlling panax notoginseng root rot

Abstract

The invention discloses a sophora tonkinensis endophytic bacterium B22. The sophora tonkinensis endophytic bacterium B22 is classified and named as Microbacterium sp. B22, wherein the 16S rDNA gene sequence table of the strain is as described by SEQ ID NO.1, the depository authority is the General Microbiological Collection Center of China Committee for Culture Collection of Microorganisms, the depository address is Institute of Microbiology, Building 3, No.1, Beichen West Road, Chaoyang District, Beijing, the depository date is 29 September 2015, and the depository number is CGMCC No.11463. According to the sophora tonkinensis endophytic bacterium B22 provided by the invention, a strain of sophora tonkinensis endophytic bacterium Microbacterium sp. B22 is separated and screened from the root of a medicinal plant sophora tonkinensis for the first time, the Microbacterium sp. B22 has strong inhibiting effect on panax notoginseng fusarium solani, and a wide application prospect is created for the biological prevention and control field of panax notoginseng fungal diseases.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to the application of an endophytic bacterium B22 of Sophora japonica in the prevention and treatment of Panax notoginseng root rot. Background technique [0002] The prevention and control of plant diseases in modern agriculture is overly dependent on the use of chemical pesticides. The application of a large number of chemical pesticides not only has long-term damage to the ecological environment, but also causes the quality of agricultural products to decline, pesticide residues exceed the standard, pathogenic bacteria are resistant to drugs, and are harmful to humans and animals. Many questions. It is of great significance to find safer and more effective methods of disease control, and the use of biological methods to prevent and control plant diseases can effectively solve the above problems. [0003] Panax notoginseng F.H.chen, also known as Tianqi, Jinbuhuan, etc., has signific...

AI Technical Summary

Problems solved by technology

In the traditional authentic production area of ​​Sanqi in Guangxi, due to the low altitude and high temperature and humidity weather conditions, this disease often occurs at the same time, resulting in a large amount of production reduction or even failure of Sanqi, and brought huge economic losses to the growers.

In order to control this fungal disease, a large amount of chemical pesticides are used, resulting in a large amount of pesticide residues in Panax notoginseng products, seriously polluting the environment, and greatly threatening people's health

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