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Application of antraquinone derivative as pesticide for controlling plant diseases

An anthraquinone derivative and plant disease technology, used in the field of pesticides for preventing and controlling plant fungal diseases

Inactive Publication Date: 2004-07-28
INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, their function in plants is not yet understood

Method used

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  • Application of antraquinone derivative as pesticide for controlling plant diseases
  • Application of antraquinone derivative as pesticide for controlling plant diseases

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Research on the effect of derivative compound 7 (Emodin-1,6-dimethylether) of the present invention on the development of wheat powdery mildew at seedling stage.

[0021] 1. Bacterial species: wheat powdery mildew (Blumeria graminis f.sp.tritici) strain No14, which was determined to be highly pathogenic by testing 10 main wheat varieties in Hubei.

[0022] 2. Wheat variety: Zheng 98 (shows affinity with No14 strain).

[0023] 3. Cultivation of wheat seedlings: Cultivate wheat seedlings with consistent growth in a 18±1°C light incubator with a flower pot with a diameter of 30 cm. There are 15 plants in each pot. When the seedlings grow to one leaf and one heart, the experiment is carried out, and there are two kinds of potted plants and isolated leaves. Methods Sampling microscopic examination after inoculation. The isolated leaf segment inoculation method is as follows: the first leaf is cut into 3 cm leaf segments respectively, and placed on 0.5% water agar...

Embodiment 2

[0028] Embodiment 2, research on the inhibitory effect of derivative compounds of the present invention on wheat powdery mildew

[0029] serial number

Embodiment 3

[0030] Embodiment 3: Research on the inhibitory effect of derivative compounds of the present invention on rice blast fungus

[0031] 1. Strain: Pyricularia grisea w02-1 (compatible with Lijiang Xintuan Heigu)

[0032] 2. Rice variety: Lijiang Xintuan Heigu (does not contain any blast resistance gene)

[0033] The inhibitory activity of 1-10 derivative compounds against Magnaporthe oryzae was determined by spore germination method. Tomato-oat juice medium was used to cultivate w02-1, each liter of medium contained 150ml tomato juice, 750ml oat juice (30g oatmeal, 1000ml water, boiled for 20min, filtered with double gauze), and 18g agar. Insert the w02-1 mycelia after sterilization, cultivate for 2 days under light at 25°C, interrupt the aerial mycelium with a sterilized cotton swab, wash the spores with sterile water after continuing to cultivate for 1-2 days, filter them with gauze, Dilute the spore suspension to 1 x 10 6 pcs / ml for use. After dissolving the compounds 1-1...

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Abstract

The present invention relates to an application of anthraquinone derivative as pesticice for controlling plant fungous diseases. The anthraquinone derivative pesticide contains one kind or several kinds of 10 anthraquinone derivative compounds. The anthraquinone derivative compounds have obvious action for preventing and curing several plant diseases, and can be used for preventing and curing economic crop, grain crop, vegetable, fruit tree and melon diseases due to fungi, including sphaerotheca, erysiphe, blumeria, fusarium, sclerotinia, pyricularia, rhizoctonia, colletotrichum, botrytis, verticillium and alternaria.

Description

technical field [0001] The invention relates to the application of anthraquinone derivative plant protection compound as an active ingredient as a pesticide for preventing and controlling plant fungal diseases. Background technique [0002] The infection process of plant pathogens is a continuous process, which is usually divided into three periods: invasion, incubation and pathogenesis. The haustorium is the only structure formed in the host cell by the fungus, which plays an important role in the nutrient uptake and transport of the fungus and the determination of the parasitic relationship with the host. For example, the histopathological study of the interaction between wheat rust and host pointed out that the development of the haustorium of wheat rust can be divided into four stages: haustorial mother cell formation, invasion plug formation, haustorial neck extension and haustorial body expansion. Under certain conditions, germination occurred in 6 hours, most germ tu...

Claims

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Application Information

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IPC IPC(8): A01N31/06A01N35/06
CPCA01N35/06
Inventor 喻大昭杨小军倪汉文杨立军王少南赵永玉张汉亦
Owner INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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