Streptomyces hupehensis and application thereof

Abstract

The invention provides a streptomyces sp. Nov. Which is a new species of streptomyces, is named as Streptomyceshuiliensis sp.nov., is preserved in the China Center for Type Culture Collection on March 30, 2021, and has the preservation number of CCTCC M 2021298T. The bacterial strain has stable broad-spectrum antibacterial activity, and has a stronger antibacterial effect on various common crop pathogenic fungi such as fusarium oxysporum No.4 physiological races, fusarium oxysporum No.1 physiological races, banana long leaf spot germs, banana large gray leaf spot germs, strawberry anthracnose germs and banana anthracnose germs; a fermentation crude extract of the strain can effectively inhibit mycelial growth and spore germination of Foc TR4 fungi, the minimum inhibitory concentration is 6.25 [mu]g / ml, and the strain has potential application value, expands a new field for prevention and treatment of various plant diseases such as fusarium wilt, and has good development and application prospects.

Description

technical field [0001] The invention belongs to the field of microorganisms, and in particular relates to Streptomyces palisae and its application. Background technique [0002] Plant fungal diseases seriously threaten the safety and stability of crop production. Globally, 10% to 16% of agricultural yields are lost each year due to plant diseases, of which 70% to 80% are caused by pathogenic fungal infections (Wu Zhiming et al., 2018). Although chemical pesticides have ideal control effects on various diseases, they are less effective against some diseases, especially soil-borne fungal diseases, and long-term use of chemical pesticides will induce drug resistance of pathogenic bacteria, and at the same time cause pollution to the environment and damage the environment. Human and animal produce toxic side effects. Biocontrol of plant diseases using highly effective and low-toxic microbial biocontrol agents is considered as a viable alternative (Asghar and Mohammad, 2010). ...

AI Technical Summary

Problems solved by technology

Although chemical pesticides have ideal control effects on many diseases, they are less effective against some diseases, especially soil-borne fungal diseases, and long-term use of chemical pesticides will induce drug resistance of pathogenic bacteria, and at the same time cause pollution to the environment and damage the environment. Toxic side effects for humans and animals

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