Antifungal activity of plant extracts against Embellisia astragali, the fungal causal agent of yellow dwarf and root-rot disease of standing milkvetch
Antifungal activity of plant extracts against Embellisia astragali, the fungal causal agent of yellow dwarf and root-rot disease of standing milkvetch
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植物提取物对黄芪、黄矮病和紫云英根腐病的真菌病原的抗真菌活性
DOI：
10.1071/cp15012
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发表时间：
2015
影响因子：
1.9
通讯作者：
Yanzhong Li
中科院分区：
文献类型：
--
作者：
Cui;Xiaoyu Zhu;Zheng Cui;Yanzhong Li
摘要。为了寻找生物杀菌剂，我们筛选了18种中药药用植物，对黄芪黄萎病（黄芪黄萎病）的致病真菌黄芪黄芪黄芪的活性进行了研究。对这些植物乙醇提取物进行体外抑菌试验。结果表明，在18种植物中，三叶葱、葱和木犀草的乙醇提取物完全抑制了黄芪菌丝的生长。3种提取物对黄芪孢子萌发均有显著抑制作用，抑制率在86% ~ 88%之间。此外，同一植物部位的同一提取物对黄芪的抑菌活性最强，最低抑菌浓度为50 mg mL-1。这些结果表明，植物源性产品对直立豇豆的黄矮秆病和根腐病具有很高的防治潜力。
Abstract. In an attempt to find biological fungicides, we screened 18 medicinal plants used in Chinese traditional medicine for their activity against Embellisia astragali, the causative fungus of yellow dwarf and root-rot disease in standing milkvetch (Astragalus adsurgens Pall.). The antifungal efficacy of ethanolic extracts of these plants was tested in vitro. Our results show that among the 18 plants tested, the ethanolic extracts of Saposhnikovia divaricata, Allium sativum and Juglans regia totally inhibited mycelial growth of E. astragali. These three extracts also significantly inhibited spore germination of E. astragali, with inhibition rates ranging from 86% to 88%. In addition, the same extract from the same plant part indicated the strongest antifungal activity against E. astragali, with a minimal inhibitory concentration value of 50 mg mL–1. These results demonstrate that plant-derived products have a high potential to control yellow dwarf and root-rot disease in standing milkvetch.