Compound for preventing and treating plant pathogenic bacteria and application thereof

A technology of phytopathogenic bacteria and compounds, which is applied in the field of compounds for the prevention and treatment of phytopathogenic bacteria, can solve the problems of no reports on the inhibitory effect of 4-allyl catechol, and achieve good control effects
CN112079692AActive Publication Date: 2020-12-15ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
Publication Date
2020-12-15

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Abstract

The invention discloses a compound for preventing and treating plant pathogenic bacteria and application thereof. The compound is 4-allyl catechol, tests prove that the 4-allyl catechol has antibacterial activity, and when the test concentration of the compound is 1000 [mu] mol / L, the compound has a good antibacterial effect on xanthomonas campestris pv, xanthomonas oryzae pv. oryzicola, xanthomonas citri, bacterial fruit blotch of muskmelon, bacterial wilt of tomato, bacterial angular leaf spot of strawberry, bacterial angular leaf spot of mango, black rot of cabbage and soft rot of potato, and the inhibition rate is 90% or above; meanwhile, in-vivo test results show that the compound has a good inhibition effect on pathogenicity of potato soft rot fungi, and also has a good prevention and treatment effect on mango bacterial angular leaf spot bacteria and melon bacterial fruit blotch bacteria. The results show that the 4-allyl catechol has a broad-spectrum bactericidal effect on plantpathogenic bacteria. Therefore, a foundation is laid for further creating a novel pollution-free botanical pesticide by utilizing a unique plant, namely South China pepper, in China.
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Description

technical field

[0001] The invention relates to the technical field of plant disease control, in particular to a compound for preventing and controlling plant pathogenic bacteria and its application. Background technique

[0002] South China pepper (Piper austrosinense) is a woody climbing vine of the family Piperaceae, mainly distributed in Guangxi, Guangdong, Hainan and coastal islands. According to the records of "Chinese Materia Medica", South China pepper has the effect of reducing swelling and relieving pain, and is mainly used for toothache and bruises. 4-allyl catechol is a component with good bactericidal activity isolated by the project team from South China pepper, a plant of the Piperaceae family, using the biological activity tracking method. Its chemical structure is shown in formula I.

[0003]

[0004] After searching, protocatechualdehyde, the active ingredient of South China pepper, is used in medicine to fight bacteria. At present, there is no report o...

Claims

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