| 抑制火龙果果腐病病菌桃吉尔霉的植物精油筛选(简报) |
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| 引用本文： | 于婧,李敏,高兆银,弓德强,张绍刚,洪小雨,花静静,胡美姣.抑制火龙果果腐病病菌桃吉尔霉的植物精油筛选(简报)[J].热带生物学报,2021,12(1):72-74. |
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| 作者姓名： | 于婧 李敏 高兆银 弓德强 张绍刚 洪小雨 花静静 胡美姣 |
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| 作者单位： | 1.海南大学 植物保护学院，海口 570228 |
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| 基金项目： | 热科院创新团队项目（1630042017027）；贵州省科技计划项目（黔科合成果[2019]4261 号） |
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| 摘 要： | 为了明确引起火龙果贮藏期间果腐病病原菌桃吉尔霉（Gilbertella persicaria）对植物精油的敏感性，笔者测定了12种植物精油对该菌的抑制作用。结果表明:供试12种植物精油对该菌均有抑制作用，抑菌效果前5位精油为牛至精油、香茅精油、肉桂精油、芥末精油和丁香精油，其EC50值依次为94.1、122.9、174.0、254.3、261.1 μg·mL?1；使用抑菌效果前5位的精油（1 000 μL·L?1）浸果处理，发现芥末精油对该病害的控制率达到100%，且果面未见损伤；牛至精油对该病害的控制率虽然达到91.96%，但使果实出现严重药害，不适合在实际生产中应用。
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| 关 键 词： | 火龙果 果腐病 桃吉尔霉 植物精油 浸果处理 |
| 收稿时间： | 2020-09-18 |
Screening of Plant Essential Oils with Antifungal Activities Against Pitaya Fruit Rot |
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| Institution: | 1.College of Plant Protection, Hainan University, Haikou, Hainan 570228, China2.Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, Hainan 571101, China3.School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan 570228, China4.College of Horticulture, Hainan University, Haikou, Hainan 570228, China |
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| Abstract: | Twelve plant essential oils were tested to observe their inhibitory effect on Gilbertella persicaria that causes fruit rot of pitaya or dragon fruit in order to clarify the sensitivity of G.persicaria to plant essential oils during the storage of pitaya. The results showed that all the tested 12 plant essential oils had an inhibitory effect on G. persicaria. The top 5 plant essential oils with higher antifungal activities are oregano essential oil, citronella essential oil, cinnamon essential oil, mustard essential oil and clove essential oil, which had the EC50 values of 94.1, 122.9, 174.0, 254.3 and 261.1 μg·mL?1, respectively. Pitaya fruits were treated with these 5 essential oils at a concentration of 1 000 μL·L?1 by dipping, and inoculated with the fungi G.persicaria to observe the control effect of the essential oils on the fungi. The results showed the mustard essential oil had the control rate of 100% against G. persicaria and caused no damage to the surface of the fruit, while the oregano essential oil had a control rate of 91.96% against G. persicaria, but caused serious damage to the fruit surface, which is not suitable for application in production. |
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