A strain of Bacillus pumilus that efficiently degrades atrazine

Abstract

A strain of Bacillus pumilus that efficiently degrades atrazine relates to a strain of Bacillus that efficiently degrades atrazine. It is Bacillus pumilus (Bacillus pumilus) gy201401, and it is preserved in the General Microbiology Center of the China Microbiological Culture Collection Management Committee. The preservation address is No. 3, No. 1, Beichen West Road, Chaoyang District, Beijing. The deposit number is CGMCC No.10252. It is a microorganism with strong stress resistance. After applying this microorganism, it can obviously accelerate the degradation of residual atrazine in the soil, reduce or avoid the damage of residual atrazine to the sensitive crops of the next stubble, thereby increasing the yield of crops. Get higher economic benefits.

Description

technical field [0001] The invention belongs to the technical field of bioengineering, in particular to the discovery of a bacillus capable of repairing atrazine-contaminated soil. Background technique [0002] Atrazine belongs to the triazine herbicides and is a selective systemic conduction pre-emergence and post-emergence herbicide. It has been widely used in my country in recent years, but it is a long-acting herbicide with a long residual time. It is easy to cause pollution to the ecological environment, and its residues will cause serious phytotoxicity to the subsequent sensitive crops, which is an important problem in agricultural production and the ecological environment. In recent years, there have been frequent incidents of atrazine harming sensitive crops (beets, melons, wheat, soybeans, etc.) in recent years, directly causing serious economic losses. [0003] Microorganisms are biological groups with strong ability to degrade organic pollutants. Since 1982, scho...

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Problems solved by technology

[0004] With the deepening of people's research on the degradation of atrazine by microorganisms, some problems have gradually emerged. For example, in the laboratory, the degradation effect of microorganisms on atrazine is very good, but the expected effect cannot be achieved in the environment, and even Contrary to laboratory effects; toxicity issues of secondary products of microbial degradation, etc.

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