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Application of pseudolaric acid B in preventing plant diseases

A technology of hibiscus bark acetic acid and plant diseases, applied in the fields of application, plant growth regulator, botanical equipment and methods, etc., can solve the problems such as no reports of the inhibitory effect of hibiscus bark acetic acid, and achieve significant inhibition of mycelial growth effect, good antibacterial effect, significant effect of inhibiting spore germination

Active Publication Date: 2010-11-24
ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After searching, there is no report on the agricultural activity of hibiscus bark acetic acid in China at present. The research on this compound at home and abroad mainly focuses on the medicinal pharmacological activity. The Chinese invention patent "Application of hibiscus bark acetic acid in inhibiting angiogenesis" (02159423.6) disclosed the inhibitory application of hibiscus bark acetic acid in angiogenesis, and there is no report on the inhibitory effect of hibiscus bark acetic acid on plant pathogenic fungi

Method used

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  • Application of pseudolaric acid B in preventing plant diseases
  • Application of pseudolaric acid B in preventing plant diseases
  • Application of pseudolaric acid B in preventing plant diseases

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Embodiment 1

[0018] Embodiment 1, the application of hibiscus bark acetic acid in the prevention and treatment of plant diseases

[0019] In the research on the agricultural fungicidal active substances of Pine chinensis, the inventor found that hibiscus bark acetic acid has a control effect on plant pathogenic bacteria by using the activity tracking method. Take the following experiment as an example to verify the effect of hibiscus bark acetic acid on the prevention and treatment of plant diseases.

[0020] One, the preparation of hibiscus bark acetic acid

[0021] The method of reference (Zhou B.N., Ying B.P., Song G.Q., Chen Z.X., Han J., Yan Y.F..Pseudolaric acids from Pseudolarix kaempferi.Journal of medicinal plant research.1983, 47:35-38) will dry the pine ( (purchased from Guangzhou Qingping Medicine Market) near the root bark and root bark were dried in the shade, crushed through a 40-mesh sieve, extracted by cold immersion in 95% (volume percent concentration) ethanol solution,...

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Abstract

The invention discloses an application of pseudolaric acid B in preventing plant diseases. An experiment proves that the pseudolaric acid B has agricultural fungicidal activity. The compound has good bacteriostasis on setosphaeria turcica, pyricularia grisea, botrytis cinerea, rhizoctonia solani, mango stem end rot pathogen and colletotrichum gloeosporioides when the concentration for testing is 5mg / L, and the EC value is between 0.08mg / L-1mg / L; the compound has a certain spore germination inhibition on the setosphaeria turcica and the botrytis cinerea when the EC values are only 7.806mg / L and 4.104mg / L respectively; and at the same time, the result of a living body experiment shows that the compound further has good protective and therapeutic actions on the botrytis cinerea. The result indicates that the pseudolaric acid B has broad-spectrum bactericidal effect on the plant diseases, which lays the foundation for creating a novel non-polluted plant source pesticide by using the unique plant pseudolaric acid B in China.

Description

technical field [0001] The invention relates to the application of hibiscus bark acetic acid in preventing and treating plant diseases, in particular to the application of hibiscus bark acetic acid and its use as a fungicide in preventing and treating plant diseases. Background technique [0002] The traditional Chinese medicine Hibiscus bark is the dry bark or near-root bark of Pinaceae plant Pseudolarix kaempferi Gord. Traditional Chinese medicine clinically uses it for killing insects and relieving itching, tinea manus, pedis, neurodermatitis, cancer and other diseases. Hibiscus bark acetic acid is a diterpene acid component in the bark of Pine pine, a plant of Pinaceae. The chemical structural formula of hibiscus bark acetic acid is shown in formula I. Hibiscus bark acetic acid is used in medicine for antifungal, hemostasis and neurodermatitis. Recent studies have shown that hibiscus bark acetic acid can inhibit angiogenesis, and can be used to prevent or treat cancer,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01P3/00
Inventor 张静冯岗高兆银蒲金基刘晓妹符悦冠
Owner ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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