Application of alpha-mangostin in controlling plant diseases

Abstract

The invention discloses an application of alpha-mangostin in controlling plant diseases. Tests prove that alpha-mangostin has agricultural fungicidal activity. The compound has very strong fungistatic action on mango anthracnose pathogens, diplodina sp., botrytis cinerea, and exserohilum turcicum when the testing concentration is 100 mg / L, and has an EC50 value of 18 mg / L-35 mg / L; the compound has certain spore germination inhibition effect on exserohilum turcicum and botrytis cinerea, and the EC50 values are 66.20 mg / L and 50.43 mg / L respectively; meanwhile, in-vivo test results show that the compound has very good protection and treatment effects on rubber tree powdery mildew when the testing concentration is 500 mg / L, and the protection and treatment effects on rubber tree powdery mildew are 75.61% and 70.12% respectively, which are higher than those of a control drug of prochloraz. The above results indicate that alpha-mangostin has broad-spectrum fungistatic action on plant pathogenic fungi, which lays the foundation for the development of novel pollution-free plant-derived pesticides by further using mangosteen shells.

Description

technical field [0001] The invention relates to the application of α-mangostin in preventing and controlling plant diseases, in particular to the application of α-mangostin and its use as a fungicide in preventing and controlling plant diseases. Background technique [0002] Mangosteen (Garcinia mangostana L.), also known as mangosteen, mangosteen, and phoenix fruit, is known as the "Queen of Fruits" and is the fruit of the evergreen tree mangosteen of the genus Garcinia in the family Guttiferae. Native to Indonesia and Malaysia, it is a typical tropical fruit. It is mainly distributed in Southeast Asian countries such as Thailand, Vietnam, Malaysia, Indonesia, and the Philippines, and is widely cultivated in Guangxi, Hainan and other regions of China. Mangosteen peel has been used as traditional medicine in Southeast Asian countries to treat abdominal pain, diarrhea, dysentery and other diseases. In recent years, many researchers have conducted research on its chemical co...

AI Technical Summary

Problems solved by technology

The research on this compound at home and abroad mainly focuses on the medicinal pharmacological activity. The Chinese invention patents "Application of α-Mangostin in the Preparation of Alzheimer's Disease Drugs (ZL201110040746.1)" and "α-, γ-Inverse Mangostin Derivatives and Their Application in the Preparation of Anticancer Drugs (201210402155.9)" discloses the application of α-mangostin in the preparation of medicines, Chinese invention patent "A method for extracting α-mangostin from mangosteen bark (201310461749.1)", "A preparation method of mangostin (201010181155.1)", "A method of total synthesis of mangostin (201110302040.8)", "A method of purifying α-mangostin (201110117537.2 )" and "Method for extracting α-mangostin from mangosteen peel (ZL200810017640.8)" disclosed the total synthesis and preparation method of α-mangostin, but no inhibitory effect of α-mangostin on plant pathogenic fungi was found report

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