A strain of Paenibacillus polymyxa and its application

Through the GRY-11, the polypsicle Bacillus polypsiformis isolated from the apple orchard, the problem of apple continuous cropping disorder was solved, the inhibition of the pathogens of apple continuous cropping disorder and the promotion of apple tree growth was achieved, and a safe and environmentally friendly biological control was provided. method.

CN116536199BActive Publication Date: 2024-12-24SHANDONG AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202310488273.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-25
Publication Date
2024-12-24
Estimated Expiration
2043-04-25

AI Technical Summary

Technical Problem

The continuous cropping barriers of apples have led to a decline in apple production and quality. The existing methods of bromine methane fumigation pollute the environment, so we need to find safe and efficient biological control methods.

Method used

Bacillus polyconidia GRY-11 was isolated from the rhizosphere soil of healthy fruit trees in apple orchard. This strain has antagonistic effects on the main pathogens that cause apple continuous cropping disorder. By inhibiting pathogen growth, promoting the increase in soil bacterial count, improving soil enzyme activity and Root protective enzyme activity reduces apple continuous cropping disorder.

Benefits of technology

Significantly inhibit the pathogens of apple continuous cropping disorder, promote the growth of apple trees, improve the soil bacteria/fungus ratio, reduce the content of soil phenolic acid, enhance the health of apple seedling roots, reduce the obstacles to apple continuous cropping, and provide a safe and environmentally friendly biological control method.

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Abstract

The invention discloses a polymyxa Paenibacillus, which belongs to the technical field of agricultural microorganisms. The invention isolates a polymyxa Paenibacillus GRY‑11 from healthy apple rhizosphere soil in a continuous cropping orchard, belonging to Paenibacillus polymyxa. Experiments have shown that the strain has antagonistic effects on Fusarium oxysporum, Fusarium moniliforme, Fusarium laminarum, and Fusarium solani that cause apple continuous cropping obstacles; the strain can increase the number of soil bacteria, reduce the number of pathogens, and promote plant growth; improve soil enzyme activity in apple continuous cropping soil and protective enzyme activity of apple seedling roots; reduce the content of soil phenolic acid substances; and effectively alleviate apple continuous cropping obstacles.
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Citation Information

Patent Citations

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