A kind of bacillus subtilis and bacterial agent thereof

Abstract

The invention provides bacillus subtilis with the preservation number of CGMCC No.8340, a microbial agent containing the bacillus subtilis and an application of the bacillus subtilis or the microbial agent in the prevention and control of peanut fruit rot. The bacillus subtilis with the preservation number of CGMCC No.8344 and the microbial agent containing the bacillus subtilis have good antagonistic effects on the peanut fruit rot bacteria; a screened bacillus subtilis strain can be used for preparing the corresponding microbial agent, and after the prepared microbial agent is applied to a peanut planting environment, the occurrence of the peanut fruit rot can be prevented and controlled under the action of the bacillus subtilis, so that the application of chemical pesticides in a peanut production process is reduced.

Description

technical field

[0001] The invention relates to a bacillus subtilis BS-KA2 and a biological agent for preventing and treating peanut fruit rot caused by fusarium infection, belonging to the field of biotechnology. Background technique

[0002] Fusarium is a worldwide distribution of fungi, it can not only survive winter and summer in the soil, but also infect a variety of plants (food crops, economic crops, medicinal plants and ornamental plants), causing plant root rot, stem There are more than 100 species of host plants, infecting the vascular system of host plants, destroying the vascular bundles of plant transport tissues, and producing toxin hazards in the process of growth, development and metabolism Crops, causing crop wilting and death, affecting yield and quality, is one of the most difficult important diseases to control in production.

[0003] Fusarium solani is a kind of Fusarium fungus, which reproduces in large quantities in the soil of heavy cropping peanuts,...

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