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Application and method of oleanane-type pentacyclic triterpene compound in controlling fungal diseases of crops

An oleanane-type, pentacyclic triterpenoid technology, applied in the directions of botanical equipment and methods, applications, fungicides, etc., can solve the problems of undiscovered patent publications, few applications, etc., to improve disease resistance, reduce Disease and resistance improvement effect

Active Publication Date: 2021-12-17
山西师范大学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, oleanane-type pentacyclic triterpenoids are mainly used in the field of medicine, and less in agriculture
[0004] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • Application and method of oleanane-type pentacyclic triterpene compound in controlling fungal diseases of crops
  • Application and method of oleanane-type pentacyclic triterpene compound in controlling fungal diseases of crops
  • Application and method of oleanane-type pentacyclic triterpene compound in controlling fungal diseases of crops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A method for controlling fungal diseases of crops by using oleanane-type pentacyclic triterpene compounds, the steps are as follows:

[0068] Take compound I and prepare 0.5 and 1 g / L solutions with distilled water, respectively. Potato seed potatoes were cut into 3-4 cm square blocks, soaked in two concentrations of compound I solutions respectively, taken out after 1.5 minutes, and placed on the ground to dry naturally for 12 hours. The chemical pesticide control test group soaked potato seed pieces in 80% mancozeb wettable powder (concentration 0.8g / L) solution, took them out after 1.5 minutes, and put them on the ground to let them air naturally for 12 hours.

[0069] The potato seed blocks were sown in flower pots in the greenhouse, and the cultivation substrate was peat, vermiculite and vegetable field soil (ratio 2:1:1), and an appropriate amount of decomposed organic fertilizer was added as the medium, and it was managed routinely. When the potato grows 4-6 lea...

Embodiment 2

[0076] A method for controlling fungal diseases of crops by using oleanane-type pentacyclic triterpene compounds, the steps are as follows:

[0077] Take compound II, and prepare 0.5 and 1 g / L solutions with distilled water, respectively, and set aside.

[0078] Tomato seeds were sown in seedling trays, and the seedling substrate was peat and vermiculite (ratio: 2:1). When the tomato seedlings were 3 to 5 leaves old, the tomato seedlings were taken out, carefully removed the root-adhesive medium matrix, and then immersed in the compound II solution (concentrations were 0.5 and 1 g / L, respectively) for 2 minutes. Tomato seedlings controlled by chemical pesticides were soaked in 80% mancozeb wettable powder (concentration 1.3g / L) solution for 2 minutes.

[0079] Take out the soaked tomato seedlings, spread them on straw mats, let them stand naturally for 0.5 hours, and transplant them into flower pots. The cultivation medium is peat, vermiculite and vegetable field soil (ratio:...

Embodiment 3

[0087] A method for controlling fungal diseases of crops by using oleanane-type pentacyclic triterpene compounds, the steps are as follows:

[0088] Mix compound I and compound II at a ratio of 1:1, prepare 0.5 and 1 g / L solutions with distilled water, and set aside.

[0089] Tomato seeds were sown in seedling trays, and the seedling substrate was peat and vermiculite (ratio: 2:1). When the tomato seedlings reach 3 to 5 leaves, take out the tomato seedlings and transplant them in flower pots. The cultivation medium is peat, vermiculite and vegetable field soil (ratio: 2:1:1). One day after transplanting, the tomato seedlings in the test group were sprayed with the mixed solution of compound Ⅰ and compound Ⅱ to fully moisten the tomato leaves; the chemical pesticide control test group used 80% mancozeb wettable powder (concentration 1.3g / L) Spray control. On the 4th day after transplanting, the prepared tomato early blight pathogenic spore (Alternaria solani) suspension was e...

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Abstract

The invention relates to the application of an oleanane-type pentacyclic triterpene compound in preventing and treating fungal diseases of crops and a method for using the same to prevent and control fungal diseases of crops. The present invention does not utilize the direct antibacterial effect of oleanane-type pentacyclic triterpenes, but improves the resistance of crops to fungal diseases by soaking seeds before sowing or soaking roots before transplanting or spraying leaves after transplanting ability, and finally achieve the purpose of disease resistance. More importantly, the prevention and control method provided by the invention only needs to be applied once before planting to achieve the purpose of alleviating the disease, which greatly reduces the control cost of conventional pesticides.

Description

technical field [0001] The invention belongs to the technical field of plant protection, in particular to the application and method of an oleanane-type pentacyclic triterpene compound in preventing and treating fungal diseases of crops. Background technique [0002] Oleanane type, also known as β-balm resin type, belongs to pentacyclic triterpenoids. These compounds are widely distributed in the plant kingdom, and mainly exist in free or saponin-bound states. Most of the structures of this type of compounds contain C 3 -β-OH, the A / B, B / C, and C / D rings in the five six-membered rings are all trans, and most of the D / E rings are in cis arrangement. Saponin compounds containing pentacyclic triterpene core have a wide range of pharmacological effects and important biological activities, such as anti-inflammation, liver protection, anti-virus, anti-tumor, anti-hypertension, anti-atherosclerosis, anti-arrhythmia and lipid-lowering , hypoglycemic and other effects, has attract...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/16A01P3/00A01C1/08A01G9/029A01G13/00
CPCA01N43/16A01C1/08A01G9/0299A01G13/00
Inventor 周学永付荣霞董建萍
Owner 山西师范大学
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