The School of Life Science and Technology of Shanghai Jiaotong University recently developed the Pseudomonas fluorescens strain M18 with China's independent intellectual property rights. It has pioneered the development of a broad-spectrum, high-efficiency, safe and effective biological pesticide capable of controlling fungal root rot and stem rot in China. The name is Shenxixin. The blight of cucumber and watermelon, the blight of muskmelon, the root rot of pepper, and the chronic diseases that are hard to cure, such as fruits and vegetables, have become nemesis. M18 is an antibiotic that has been isolated from the rhizosphere soil of many strains of autogenous bacteria. It can inhibit a wide variety of crop pathogenic fungi and has advantages over chemical agents such as efficient disease prevention, promotion of high yield and quality of crops, and protection of the ecological environment. Shanghai Jiaotong University School of Life Science and Technology after years of research, through the implementation of the Shanghai Municipal Science and Technology to open agriculture key research projects on the topic of dual-function promoting bacteria to control melon wilt disease research, biological pesticide carboxyphenazine protein coding gene cloning and functional research and biological pesticides The development of nongynomycin (M18) obtained M18. Researchers conducted an in-depth study of M18, developed high-yield genetically engineered strains, stabilized the unit of rosinomycin at a concentration of about 1000 mg/l, and had a pilot fermentation level of 800 mg/l or more. The research group has conducted trials in various places. The average control effect of rosinomycin on blight, wilt and root rot is 80%. With the support of the project, the Shanghai Jiaotong University School of Life Sciences has teamed up with Shanghai Nongle Biological Products Co., Ltd. to complete the development of 0.1% and 1% of the dexamethasone suspension and established a pilot production line. It has accumulatively promoted the use of 50 tons of preparations and achieved sales revenue of 5 million yuan. At present, the college has applied for two patents for inventions of rosinomycin. At present, the annual incidence of fungal root rot and stem rot in fruits and vegetables exceeds 25 million mu and the economic loss amounts to several billion yuan. The outbreak area in the suburbs of Shanghai is about 40,000 mu each year, and the economic loss is nearly 150 million yuan. For a long time, the main means of preventing and treating these diseases was spraying pesticides such as chlorambucil and thiophanate, which not only affected food safety and quality, but also polluted the ecological environment.
Methionine
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