Application of composition containing cryptolepine analogue and small molecule terpene compound in prevention and treatment of plant diseases

A technology of selemenine and molecular terpenes, applied in the field of natural medicinal chemistry, can solve the problems of decreased resistance of pathogens, drug-resistant pathogens, etc., and achieve the effects of improving bactericidal activity, prolonging service life, and overcoming disease resistance.

Inactive Publication Date: 2021-06-04
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the long-term use and misuse of existing traditional fungicides has resulte

Method used

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  • Application of composition containing cryptolepine analogue and small molecule terpene compound in prevention and treatment of plant diseases
  • Application of composition containing cryptolepine analogue and small molecule terpene compound in prevention and treatment of plant diseases
  • Application of composition containing cryptolepine analogue and small molecule terpene compound in prevention and treatment of plant diseases

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: A kind of fungicide composition containing basaltine or basaltine and small molecule terpene compounds, including active component A and active component B, the active component A is white leaf Phinerine or elepine, the active component B is a small molecular terpene compound.

[0014] active ingredient A

[0015] active ingredient B

[0016]

Embodiment 2

[0017] Embodiment 2: Determination of the indoor activity of basaltine or basaltine and sclareol combination on plant diseases

[0018] The phytopathogenic bacteria used in this experiment were strains stored at 4°C in the laboratory, and the medium used was potato agar dextrose medium (abbreviated as PDA). PDA medium formula: potato (peeled) 200g, glucose 20g, agar 15g, distilled water 1000mL, natural pH.

[0019] Test method: Wash and peel the potatoes, weigh 200g, cut into small pieces, add water and boil until rotten (boil for 20-30 minutes, it can be pierced by a glass rod), filter with four layers of gauze, and fill the beaker with water to 1000mL. According to the needs of the experiment, add 15-20g of agar, add 20g of glucose, stir to make it fully dissolved, then pack them into Erlenmeyer flasks, sterilize at 121°C for 20 minutes, and set aside. Dissolve the single-dose compounds eleganine, elederine, and sclareol in DMSO respectively, add them into the culture mediu...

Embodiment 3

[0031] Example 3: Determination of the indoor activity of basaltine or the combination of basaltine and sclareolide to plant diseases

[0032] The test method is the same as in Example 2, only sclareolide is used instead of sclareol.

[0033] Table 3 Indoor bacteriostatic activity of basaltine or the combination of basaltine and sclareol against plant diseases

[0034]

[0035] From the results of the activity test in Table 3, it can be known that the combination of basaltine or basaltine and sclareolide at a certain concentration is effective against Rhizoctonia solani, Sclerotinia rape, Botrytis cinerea, Wheat head blight, Oryza sativa Plant diseases such as Pestidis and Phytophthora capsici exhibit additive effects.

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Abstract

The invention discloses an application of a composition containing cryptolepine analogues and small molecule terpene compounds in prevention and treatment of plant diseases. The bactericidal composition comprises the following effective components: cryptolepine, neocryptolepine, sclareol, sclareolide, (+/-)-limonene, citronellol, ambergris, perilla alcohol, perillaldehyde, 2-hexenal, 4-terpene alcohol, terpilenol, alpha-terpilenol, camphor, citral, geraniol, menthol, nerolidol, eudesmol, curcumenol, cedrol and beta-ionone. The bactericidal composition disclosed by the invention can be used for preventing and treating plant diseases caused by rhizoctonia solani, Rape sclerotinia stem rot bacteria, botrytis cinerea, fusarium graminearum, magnaporthe oryzae and phytophthora capsici. The components are all natural products, have the characteristics of low toxicity, low residue, environmental compatibility, difficult generation of drug resistance and the like, can cope with occurrence of drug resistance of diseases and reduce the drug cost, and are beneficial to comprehensive management of the diseases.

Description

technical field [0001] The invention belongs to the field of natural medicinal chemistry, and discloses that the combination of basaltine analogues and small molecule terpene compounds can prevent and treat rhizoctonia solani, Sclerotinia sclerotiorum, tomato Botrytis cinerea, wheat scab, rice Use in plant diseases caused by pestilence fungus and Phytophthora capsici. Background technique [0002] Our country is a large agricultural country, and every year due to the invasion of plant diseases, the yield of field crops is greatly lost. Among the existing prevention and treatment programs for plant diseases, chemical control methods have become one of the most effective management strategies due to their advantages of fast response, low cost, and easy operation. However, the long-term use and abuse of existing traditional fungicides has led to a decline in resistance to pathogens and the emergence of drug-resistant pathogens. Therefore, there is an urgent need to explore an...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N27/00A01N31/02A01N31/06A01N31/04A01N35/02A01N35/06A01N43/12A01P3/00
CPCA01N27/00A01N31/02A01N31/04A01N31/06A01N35/02A01N35/06A01N43/12A01N43/90
Inventor 刘映前贺颖慧楚庆如杜莎莎张智军赵文斌杨程杰周锐马越胡勇梅
Owner LANZHOU UNIVERSITY
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