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Streptomyces malaysiensis and application thereof

A technology of streptomyces and strains, applied in the direction of application, bacteria, fungicides, etc., can solve the problems that the antagonism has not been reported yet, and achieve the effect of good antagonism and strong genetic stability

Active Publication Date: 2016-02-24
ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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AI Technical Summary

Problems solved by technology

[0008] There is no report on the antagonistic effect of Streptomyces malaysia on plant pathogenic fungi such as banana wilt, melon wilt and tomato wilt

Method used

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  • Streptomyces malaysiensis and application thereof
  • Streptomyces malaysiensis and application thereof
  • Streptomyces malaysiensis and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Streptomyces malaysia A8 ( Streptomyces malaysiensis A8) Features

[0017] 1) Morphological characteristics of bacteria

[0018] Observed under an optical microscope, the spore filaments of the strain are spiral (see figure 1 ), conidia are cylindrical to barrel-shaped, and the surface of the spores is wrinkled (see figure 2 and 3 ).

[0019] 2) Colony culture characteristics

[0020] Inoculate the strain A8 on Gaoshi No. 1 Agar, Glycerol Aspartate Agar (ISP), Inorganic Salt Starch Agar (ISP), Yeast Refined Malt Extract Agar (ISP), Oatmeal Agar (ISP), Nutrient Agar, Potato Dextrose Culture After culturing at 28°C for 7 days in the base and tyrosine medium, the culture characteristics on various mediums were observed, and the results are shown in Table 1.

[0021] Table 1 Colony culture characteristics of Streptomyces malaysia A8

[0022]

[0023] 3) Physiological and biochemical characteristics

[0024] It can utilize fructose, D-galactose, inosose, raffi...

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Abstract

The invention discloses streptomyces malaysiensis A8, which has the property of antagonizing fusarium oxysporium, and application of the streptomyces malaysiensis A8, wherein the streptomyces malaysiensis A8 is preserved with preservation number of CCTCC NO: M2015518. The strain A8 disclosed by the invention can be used for inhibiting the growth of specialized pathogenic fusarium oxysporium of bananas, melons, tomatoes and the like, and the strain has broad-spectrum antagonism and strong genetic stability. The streptomyces malaysiensis A8 is applicable to biological control of fusarium oxysporium of such crops as bananas, melons, tomatoes and the like.

Description

technical field [0001] The present invention relates to a strain novel bacterial strain, particularly a kind of antagonistic bacteria---Malaysia Streptomyces A8 ( Streptomyces malaysiensis A8), also relate to the application of this bacterial strain simultaneously. Background technique [0002] At present, chemical pesticides are often used in agricultural production to prevent and control crop diseases. However, chemical pesticides are prone to drug resistance and drug residues, which not only pollute the environment, but also seriously threaten human health. Biological control technology has the advantages of no pollution to the environment, safety for humans and other organisms, long-lasting control effect, no residue in the product, strong specificity for killing diseases and insect pests, easy coordination with other plant protection measures, and energy saving. play an increasingly important role in integrated pest management. With the increasing demand for pollutio...

Claims

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Application Information

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IPC IPC(8): C12N1/20A01N63/00A01P3/00C12R1/465
Inventor 邓晓李勤奋武春媛李怡刘景坤
Owner ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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