Bacillus pumilus bacterial strain application thereof

A technology of bacillus pumilus and bacterial liquid, applied in the direction of application, bacteria, microorganisms, etc., can solve the problems of no anti-prawn virus disease strains, low number of viable bacteria, and unstable effect, so as to enhance the non-specific immune function of prawns, The effect of reducing virus infection and slowing down the value-added rate
CN104388337AActive Publication Date: 2015-03-04湖北宜水环保科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
湖北宜水环保科技有限公司
Publication Date
2015-03-04

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Abstract

The invention aims to provide a bacillus pumilus bacterial strain of which the preservation number is CCTCC M2013263. The bacillus pumilus disclosed by the invention can improve the composition and the number of dominant microbial populations in an alimentary canal of a prawn to form and maintain good microecological balance of the alimentary canal, and withstand the adhesion and the proliferation of viruses in the alimentary canal through competition for nutrition, competition for space or secretion of bacteriocin and the like. The bacillus pumilus can activate the expression of prophenoloxidase, superoxide dismutase, lysozyme, heat shock protein, lipopolysaccharide-glucan conjugated protein, signal transduction and transcriptional activation factors and the like of the prawn with relevant pathogenic infection resistant molecules, and retard the proliferation rate of the viruses in the body of the prawn. The bacillus pumilus disclosed by the invention can be added to raw materials of a prawn feed, and can also be directly applied to the prawn breeding water environment.
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Description

technical field

[0001] The invention belongs to the technical field of probiotic screening, and in particular relates to a Bacillus pumilus strain and an application thereof. Background technique

[0002] Bacillus pumilus belongs to Firmicutes (low G+C Gram-positive bacteria), Bacilli class (Bacilli), Bacillales (Bacillales), Bacillus family ( Bacillaceae), Bacillus (Bacillus). Bacillus pumilus is ubiquitous in soil and on the surface of plants, and is also one of the common symbiotic bacteria in the intestines of humans and animals. Bacillus pumilus is one of the 44 microorganisms that can be directly fed and are generally considered safe as announced by the US Food and Drug Administration (FDA) and the American Feed Standards Association (AAFCO) in 1989. Bacillus pumilus has strong protein secretion ability and low extracellular protease activity, so it has the natural advantages of secreting and expressing foreign proteins, and it is expected to establish an efficient p...

Claims

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