Brevundimonas sp. and application thereof

A technology of brevundimonas and fermentation liquid, which is applied in the field of microorganisms, can solve the problems of secondary pollution of freshwater ecosystems, high cost, and limited effective use, and achieves simple screening methods, high repeatability, and no secondary pollution Effect

Inactive Publication Date: 2014-07-30
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, physical and chemical methods limit their effective use due to h

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  • Brevundimonas sp. and application thereof
  • Brevundimonas sp. and application thereof
  • Brevundimonas sp. and application thereof

Examples

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Embodiment Construction

[0022] The present invention is described in detail below with examples, but the protection scope of the present invention is not limited thereto.

[0023] 1. Screening of Alginolytic Bacteria

[0024] Inoculate 1 mL of the natural water sample collected from the Meiliang Bay waters of Taihu Lake into 100 mL of beef extract peptone medium for enrichment and culture for 24 hours (cultivated at 30°C and 200 rpm), and add 10 mL of the culture solution to 100 mL of aeruginosa cultured to the logarithmic phase. Algae fluid of Cystis 9110 (isolated from Taihu Lake) (algae cell density is about 1×10 7 individual / mL). One week later, the yellow algae liquid was taken and spread on the beef extract peptone medium plate by gradient dilution method, cultivated overnight at 30°C, and a plate with moderate colony density was taken, and a series of strains were selected from the plate according to the difference in colony morphology.

[0025] The selected bacterial strains were inoculated...

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Abstract

The invention provides brevundimonas sp. Brevundimonas sp. is named brevundimonas sp.J4, with collection number of CGMCC (China General Microbiological Culture Collection Center) NO.8976. The strain screened from the water body of the Taihu Lake has strong lytic effects on the dominant strain-microcystis aeruginosa in the cyanobacterial bloom, can be used for developing and producing novel algicides, and is finally applied to control of the fresh water cyanobacterial bloom.

Description

technical field [0001] The invention relates to microorganisms, in particular to a strain of brevundimonas and its application. Background technique [0002] A large amount of nutrient-rich industrial, agricultural and domestic sewage is discharged into natural water bodies, resulting in increasingly serious eutrophication of water bodies. As one of the important signs of water eutrophication, the frequency and area of ​​algae blooms are increasing year by year around the world, which has caused very serious environmental impacts and economic losses to many countries, and has aroused widespread concerns from governments and people. focus on. In China, many freshwater lakes (such as Taihu Lake, Dianchi Lake, Chaohu Lake, etc.) are seriously affected by cyanobacterial blooms. Therefore, it is very necessary to effectively control cyanobacterial blooms. [0003] At present, the methods for controlling cyanobacterial blooms mainly include physical methods, chemical methods an...

Claims

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Application Information

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IPC IPC(8): C12N1/20C02F3/34C12R1/01
Inventor 杨虹林升钦李正华
Owner SHANGHAI JIAO TONG UNIV
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