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作 者 ：郝彩琴  杜晓峰  庄世宏  马柏  张兴

期 刊 ：西北植物学报 2007年 10期

关键词：小花假泽兰；精油；化学成分；抑菌活性；

Keywords:Mikania micrantha, essential oil, chemical constituents, antifugal activity,

摘 要 ：利用GC-MS技术分析了小花假泽兰全株精油的化学成分及其含量,并初步测定了精油的抑菌效果.从小花假泽兰全株精油中共鉴定出49种成分,占色谱峰总面积的57.28%,主要成分为22,23-二羟基豆甾烷醇(7.34%)、氧化丁子香烯(3.34%)、罗汉柏烯(2.92%)、cubenol(2.81%)等.生长速率法测定表明,小花假泽兰精油对番茄灰霉病菌、小麦纹枯病菌和小麦赤霉病菌菌丝生长抑制作用较强,在1 000 mg/L剂量下抑制率均在90%以上;果实针刺法测试表明,该精油对番茄灰霉病菌具明显保护作用和治疗作用,但治疗效果低于保护效果,在2 000mg/L剂量下,后者达70.79%,前者仅51.79%.

Abstract:The chemical constituents and contents of essential oil from the Mikania micrantha by GC-MS and the fungicidal activities of the essential oil was preliminarily tested in this paper.49 compounds constituting about 57.28% of the essential oil were identifi

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