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Azospirillum brasilense strain and microbial preparation thereof

A microbial preparation, Azospirillum technology, applied in the direction of microorganisms, microorganism-based methods, chemicals for biological control, etc., to achieve the effect of broad application prospects

Active Publication Date: 2013-03-13
莎车晨晓农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many humus-reducing strains have been isolated in natural or artificial habitats, there have been no reports of Azospirillum species capable of humus reduction before

Method used

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  • Azospirillum brasilense strain and microbial preparation thereof
  • Azospirillum brasilense strain and microbial preparation thereof
  • Azospirillum brasilense strain and microbial preparation thereof

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Embodiment Construction

[0016] On November 1, 2012, the applicant submitted the strain to the China Ordinary Microorganism Culture Collection Management Center located in the Institute of Microbiology, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing. The collection center received the applicant on November 5, 2012 The provided strain SgZ-5 T , the deposit number given to the culture is CGMCC NO. 6778, and the proposed classification is named Azospirillum humicreducens SgZ-5 T .

[0017] A microbial preparation containing the above-mentioned Azospirillum SgZ-5 T , and the rest can be vectors well known to those skilled in the art.

[0018] Enrichment and isolation of strains

[0019] Bacterial strain SgZ-5 of the present invention T An anode biofilm isolated from a microbial fuel cell (MFC) in our laboratory. The MFC used was inoculated with 2 g of paddy soil and 10 ml of sodium acetate (1000 mg l -1 ) culture medium. The specific enrichment and separation ...

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Abstract

The invention discloses an Azospirillum brasilense strain and a microbial preparation thereof. The Azospirillum brasilense SgZ-5T is collected by China General Microbiological Culture Collection Center, and the collection number is CGMCC NO.6778. The Azospirillum brasilense SgZ-5T disclosed by the invention has the action of nitrogen fixation, and can be used for humus reduction, thereby having wide application prospects in the aspects of soil remediation, soil improvement, plant growth promotion and the like.

Description

technical field [0001] The invention relates to a strain of new bacteria and its preparation, in particular to a strain of Azospirillum and its microbial preparation. Background technique [0002] Azospirillum ( Azospirillum ) by Tarrand et al . (1978) first described, there are 15 species, the type strain is A. lipoferum . Azospirillum is widely distributed in nature, especially in tropical, subtropical, and temperate soils (Lavrinenko et al. , 2010). Several species of this genus have been reported to promote plant growth due to their ability to fix nitrogen (Dobereiner, 1983; Okon, 1985). [0003] Humic substances are quinone-rich, heterogeneous natural organic mixtures that widely exist in terrestrial and aquatic environments and can serve as electron acceptors for anaerobic growth of microorganisms (Lovley et al ., 1996; et al ., 2011). Humus anaerobic respiration plays an important role in the degradation of soil organic pollutants, and microorganisms capa...

Claims

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Application Information

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IPC IPC(8): C12N1/20B09C1/10C09K17/00A01N63/00A01P21/00C12R1/01
Inventor 杨贵芹周顺桂韩陆超
Owner 莎车晨晓农业科技有限公司