A broad-spectrum disease-resistant, growth-promoting, stress-resistant Pseudomonas azotogenes and its application

Abstract

The invention discloses a strain of broad-spectrum disease-resistant, growth-promoting, and stress-resistant Pseudomonas nitrogen and its application. The broad-spectrum disease-resistant, growth-promoting, and stress-resistant Pseudomonas nitrogen is Pseudomonas azotoformans) WXCDD51, the date of deposit is July 12, 2016, and the deposit number is CGMCC No.12760. The biocontrol bacterial strain of the present invention has the characteristics of UV resistance and drought resistance, has a strong control effect on tomato gray mold and leaf mold, and can inhibit various crop fusarium wilt, corn stem rot, rice blight, and Acanthopanax Add root rot, cucumber brown spot, cucumber anthracnose, corn leaf spot, tomato blight, sunflower sclerotinia, strawberry gray mold, Fusarium oxysporum, Verticillium, Alternaria and other fungal diseases , and has a growth-promoting effect on tomato seeds, and can also improve fruit quality and reduce rot rate.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and relates to a strain of Pseudomonas nitrogenens having strong antagonistic effects on various plant diseases such as tomato gray mold, leaf mold, cucumber brown spot and Acanthopanax root rot, and its application. Background technique [0002] The occurrence of crop diseases often destroys the growth of plants, threatens their yield and quality, and causes huge losses. The main control methods of common plant diseases include breeding resistant varieties, chemical control and biological control. Aiming at some common diseases such as tomato gray mold, leaf mold, cucumber brown spot and Acanthopanax root rot, domestic and foreign researches on screening resistant resource materials have been done for a long time, but the ideal ones have not been screened out. The progress of resistance source materials and disease resistance breeding is slow. Moreover, the long-term and large-scale us...

AI Technical Summary

Problems solved by technology

Aiming at some common diseases such as tomato gray mold, leaf mold, cucumber brown spot and Acanthopanax root rot, domestic and foreign researches on screening resistant resource materials have been done for a long time, but the ideal ones have not been screened out. Resistance source materials, slow progress in disease resistance breeding

Moreover, the long-term and large-scale use of chemical pesticides will increase the resistance of bacteria, and pesticide residues will endanger the health of humans and animals. In addition, chemical pesticides kill beneficial microorganisms in farmland while killing pathogens and destroy agricultural ecosystems.

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