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鱼腥草内源抑菌活性物质及其在青枯雷尔氏菌中的应用
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Abstract:
本研究聚焦于鱼腥草(Houttuynia cordata Thunb.)内源活性物质在防控烟草雷尔氏菌(Ralstonia solanacearum)中的应用。研究发现，甲基正壬酮(Methyl Nonyl Ketone, MNK)能有效抑制烟草青枯病病原菌的生长。本文系统地描述了MNK的提取、纯化及鉴定流程，并深入分析了其对病原菌生长特性、半抑菌浓度(IC50)、运动性和生物膜形成的影响。实验结果证实了MNK作为植物源活性物质在生物防治烟草青枯病方面的潜力，为病害管理提供了新的策略。
This study focuses on the application of endogenous active substances in Houttuynia cordata (Thunb.) for the control and prevention of Ralstonia solanacearum in tobacco. It was found that Methyl Nonyl Ketone (MNK) can effectively inhibit the growth of the pathogen causing tobacco wilt disease. This paper systematically describes the extraction, purification, and identification process of MNK, and deeply analyzes its effects on the growth characteristics, inhibitory concentration 50% (IC50), motility, and biofilm formation of the pathogen. The experimental results confirm the potential of MNK as a plant-derived active substance in the biological control of tobacco wilt disease, providing a new strategy for disease management.
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