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A strain of Paenibacillus polymyxa and its application in the control of pear tree diseases

A technology of Paenibacillus polymyxa and Bacillus, applied in the field of microorganisms, can solve problems such as scab, rice sheath blight, cucumber angular spot, watermelon anthracnose, tomato bacterial wilt, etc., to inhibit the growth and prevalence of pathogens, improve Fruit quality and the effect of improving the orchard microenvironment

Active Publication Date: 2021-09-28
JIANGSU ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, 13 parent drugs and fungicide products of Paenibacillus polymyxa have been registered in China, which are widely used in field crops and fruits and vegetables, and can control wheat head blight, rice sheath blight, cucumber angular spot, watermelon anthracnose, tomato Bacteria wilt, etc., not yet registered for use on pears

Method used

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  • A strain of Paenibacillus polymyxa and its application in the control of pear tree diseases
  • A strain of Paenibacillus polymyxa and its application in the control of pear tree diseases
  • A strain of Paenibacillus polymyxa and its application in the control of pear tree diseases

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Embodiment 1

[0024] The present invention will be described in detail below in conjunction with specific embodiments, but is not limited to the present invention. Unless otherwise specified, the technical methods used in the following examples are conventional methods; unless otherwise specified, the experimental materials used in the following examples are conventional chemical reagents and biochemical reagents.

[0025] The invention provides a strain of Paenibacillus polymyxa capable of preventing and treating fungal diseases of pear trees. The bacterial strain is isolated from the soil of an apple orchard in Fengxian County, Jiangsu Province, and the biocontrol bacteria are separated and purified from the aqueous solution of the soil sample by means of dilution coating. The method of plate antagonism experiment was used to screen high-efficiency antagonistic strains, and it was found that the FX1 strain had better antagonism effect, and it was named Paenibacillus polymyxa based on its m...

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Abstract

The invention discloses a strain of Paenibacillus polymyxa ( Paenibacillus polymyxa ) FX1 and its application, the strain has been preserved in the China General Microorganism Culture Collection and Management Center on September 18, 2020, and the preservation number is CGMCC NO.20680; Paenibacillus polymyxa belongs to the first-level safety identification in my country strains; strain FX1 and its biocontrol agents have strong inhibitory activity on the main pathogenic fungi on pear trees, can inhibit the expansion of anthracnose spots indoors, and can also inhibit anthracnose, ring spot, black spot in the field The occurrence of disease and rot can also promote the healing of rot on the branches; the use of this strain and its preparation can reduce the use of chemical pesticides in the field, ensure the safety of the ecological environment and fruit quality, and have good social and economic benefits , the application prospect is broad.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and in particular relates to a strain of Paenibacillus polymyxa and its application in the prevention and treatment of pear tree diseases. Background technique [0002] Pear is one of the main fruits in the world. In recent years, the cultivated area of ​​pear trees in my country has exceeded 900,000 hectares, and the output has stabilized at about 16 million tons, accounting for more than two-thirds of the world's total. The healthy development of the pear industry is crucial to the development of my country's and even the world's fruit industry. Diseases are one of the important factors limiting the healthy development of the pear industry. Pear trees in my country are mainly damaged by fungal diseases such as anthracnose, ring spot, rot, and scab. Anthracnose damages leaves and fruits. In 2008, it broke out in Dangshan County, Anhui Province, an important pear fruit producing area. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20A01N63/25A01P3/00C12R1/01
CPCA01N63/25C12N1/20
Inventor 孙伟波刘凤权赵延存李朝辉汤宝
Owner JIANGSU ACAD OF AGRI SCI