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Application of compound extracted from plant source as rust disease prevention and treatment drug

A compound and plant-derived technology, applied in the field of agricultural fungicides, can solve problems such as the application of turmeric extracts that have not been proposed, and achieve the effects of not easily producing drug resistance, reducing economic losses, and reducing the degree of disease damage

Active Publication Date: 2021-04-20
上海多普富生物技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pang Qianru et al. reported that the crude extracts of Zingiberaceae plants have a certain control effect on cucumber powdery mildew in "The control effect of turmeric oil in turmeric root extract on cucumber powdery mildew"; application

Method used

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  • Application of compound extracted from plant source as rust disease prevention and treatment drug
  • Application of compound extracted from plant source as rust disease prevention and treatment drug
  • Application of compound extracted from plant source as rust disease prevention and treatment drug

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides an application of compound I, which is used in the medicine for preventing and treating rust as the main active compound of the medicine for preventing and treating rust; it is used for disinfecting and / or inhibiting rust pathogens; compound I is extracted from plant sources; Its structural formula is as follows:

[0052]

[0053] The above-mentioned medicine for preventing and treating rust adopts the following method preparation:

[0054] Use an organic solvent to soak and extract the Zingiberaceae Zingiberaceae plant, which is the crude extract of Curcuma longa plant; choose petroleum ether solvent, place the crude extract of Curcuma longa plant obtained above on a silica gel column for chromatographic separation; obtain the crude extract containing Stock solution of Compound I.

[0055] Dissolve the mother solution containing compound 1 with dimethyl sulfoxide, and then prepare a solution with a compound 1 content of 20 μg / ml with water; ...

Embodiment 2

[0057] This embodiment provides an application of compound I, which is used in the medicine for preventing and treating rust as the main active compound of the medicine for preventing and treating rust; it is used for disinfecting and / or inhibiting rust pathogens; compound I is extracted from plant sources; Its structural formula is as follows:

[0058]

[0059] The above-mentioned medicine for preventing and treating rust adopts the following method preparation:

[0060] Use inorganic solvents to soak and extract Zingiberaceae Zingiberaceae plants, which is the crude extract of Curcuma longa; use methanol solvent to place the crude extract of Curcuma longa obtained above in a glass column equipped with silica gel as a stationary phase. Separating and extracting to obtain a mother liquor containing compound 1;

[0061] Dissolve the mother solution containing compound 1 with dimethyl sulfoxide, and then prepare a solution with a compound 1 content of 240 μg / ml with water; sp...

Embodiment 3

[0063] This embodiment provides an application of compound I, which is used in the medicine for preventing and treating rust as the main active compound of the medicine for preventing and treating rust; it is used for disinfecting and / or inhibiting rust pathogens; compound I is extracted from plant sources; Its structural formula is as follows:

[0064]

[0065] The above-mentioned medicine for preventing and treating rust adopts the following method preparation:

[0066] Use inorganic solvents to soak and extract Zingiberaceae Zingiberaceae plants, that is, the crude extract of turmeric plants; choose dichloromethane solvent, and place the crude extracts of Curcuma plants obtained above on a glass column equipped with silica gel as a stationary phase Separation and extraction were carried out to obtain a mother liquor containing compound 1.

[0067] Dissolve the mother solution containing compound 1 with dimethyl sulfoxide, and then prepare a solution with a compound 1 con...

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Abstract

The invention provides an application of a compound extracted from a plant source as a rust disease prevention and treatment drug, such as a compound I shown in a general formula I used in the rust disease prevention and treatment drug as a main active compound of the rust disease prevention and treatment drug. The compound I is extracted from a plant source; the compound I is used for killing and / or inhibiting rust disease pathogenic bacteria; and the compound I is extracted and separated from zingiberaceae plants, the pear tree rust disease is effectively prevented and treated, the disease harm degree is reduced, and therefore economic losses in fruit tree production are reduced. The compound obtained from a plant source is used as a drug for preventing and treating rust, has the characteristics of low toxicity, environmental friendliness and difficulty in generating drug resistance of a target, avoids a series of side effects of chemically synthesized pesticides, and is beneficial to research and development of novel plant source pesticides.

Description

technical field [0001] The invention relates to the field of agricultural fungicides, in particular to the application of a compound extracted from a plant source as a drug for preventing and controlling rust. Background technique [0002] Pear rust is a disease caused by the infection of pear gum rust fungus. Mainly damage leaves, new shoots and young fruits. After infecting the leaves, the front of the leaves will appear as orange nearly round lesions, with dense yellow needle-like spots on the lesions, and the lesions on the back of the leaves are slightly protruding, and yellow-brown hairs will grow in the later stage. Symptoms on the fruit and fruit stalks are similar to those on the back of leaves. The disease of young fruit can cause fruit deformity and early drop, seriously affecting its yield and quality. In addition to infecting pear trees, pear gum rust fungus can also infect papaya, hawthorn, Tang pear and crabapple. [0003] At present, chemical synthetic age...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N35/02A01N35/06A01N27/00A01P3/00A01P1/00
Inventor 郑善强
Owner 上海多普富生物技术有限公司