Streptomyces mediolani ZW-1 bacterial strain, and bacteriostatic application of fermentation broth thereof

A technology of Streptomyces meijolan, ZW-1, applied in application, bacteria, fungicides, etc.

Inactive Publication Date: 2012-12-26
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, with the improvement of people's living standards and the emphasis on food safety, the use of some highly toxic pesticides is gradually restricted. The prevention and control of plant diseases requires the development of a large number of non-toxic microbial pesticides. The screening of excellent micr

Method used

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  • Streptomyces mediolani ZW-1 bacterial strain, and bacteriostatic application of fermentation broth thereof
  • Streptomyces mediolani ZW-1 bacterial strain, and bacteriostatic application of fermentation broth thereof
  • Streptomyces mediolani ZW-1 bacterial strain, and bacteriostatic application of fermentation broth thereof

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Embodiment 1

[0064] Embodiment 1, a kind of streptomyces umejulan ZW-1 ( Streptomyces mediolani strain zw-1) and the antibacterial application of its fermented liquid, the bacteria inhibited are: Fusarium nivalorum ( Fusarium nivale ), Fusarium scab ( Fusarium graminearum ), spotted deciduous bacteria ( Alternaria. alternata ), Sclerotinia sclerotiorum ( Sclerotinia sclerotiorum ), Spinach blight fungus ( Alternaria solani ), Corn spot fungus ( Helminthosporium carbonum ), Fusarium wilt of watermelon ( Fusarium oxysporum f.sp .niveum) or cotton blight ( Fusarium oxysporum f.sp.vasinfectum).

[0065] The Streptomyces umejulan ZW-1 is isolated by the following method:

[0066] (1) Separation and purification: collect seawater, sea mud, offshore soil samples, marine animals and plants samples from Liandao and Gaogong Islands in Lianyungang waters, enrich and shake at 25°C and 180r / min for 5 days; separate by dilution plate separation method Actinomycetes, purified by the th...

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Abstract

The invention relates to a streptomyces mediolani ZW-1 bacterial strain, and a bacteriostatic application of fermentation broth thereof. Inhibited bacteria comprise wheat fusarium nivale, wheat fusarium graminearum, alternaria leaf spot, sclerotinia sclerotiorum, spinach altemaria solania, helminthosporium carbonum, watermelon fusarium wilt or cotton fusarium wilt. The streptomyces mediolani ZW-1 bacterial strain and the fermentation broth thereof can inhibit the growth of plant pathogenic fungal hyphae, lead to enlargement of cell walls of the pathogenic fungal hyphae and concentration of protoplasts, can inhibit conidial germination and germ tube growth of the spinach altemaria solania, have good bacteriostatic effects, and have good development and application prospects for biological prevention and control of plant diseases.

Description

technical field [0001] The invention relates to the use of a Streptomyces strain from the sea, in particular to the antibacterial use of the Streptomyces mejolanus ZW-1 strain and its fermented liquid. Background technique [0002] Biological control has become an important means of plant disease control. However, most of the microbial strains currently used for biological control come from land, and the screening of terrestrial microorganisms over the years has resulted in a lower and lower probability of screening microorganisms that produce new disease resistance mechanisms, so more and more people are turning their attention to In addition to the ocean, it is hoped to develop new anti-pathogenic active substances from the extremely diverse microorganisms in the marine environment for the biological control of plant diseases. In recent years, searching for new species of microorganisms and physiologically active substances with special functions from the ocean has become...

Claims

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Application Information

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IPC IPC(8): A01N63/02A01P3/00C12N1/20C12N1/02C12Q1/04C12R1/465
Inventor 马桂珍暴增海王淑芳吴少杰付泓润葛平华
Owner HUAIHAI INST OF TECH
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