| OS-诱抗剂诱导植物抗病性的作用探讨 |
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| 引用本文： | 孙明娜,张勇,马严明,王梅,高同春.OS-诱抗剂诱导植物抗病性的作用探讨[J].植物保护,2005,31(1):37-39. |
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| 作者姓名： | 孙明娜 张勇 马严明 王梅 高同春 |
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| 作者单位： | 安徽省农作物品质改良重点实验室,安徽省农业科学院植物保护研究所,安徽,合肥,230031 |
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| 摘 要： | 用PDA培养基平板法测定了0.4%OS-诱抗剂水剂对水稻纹枯病菌、小麦纹枯病菌、油菜菌核病菌、辣椒立枯病菌、瓜类绵腐病菌、黄瓜枯萎病菌的生物活性,其EC50值分别为34.56、59.33、33.17、85.92、91.91、122.87μg/mL,OS-诱抗剂对水稻纹枯病、油菜菌核病较好。高效液相色谱分析表明,经OS-诱抗剂处理后的植物提取液中酚类物质的种类和含量相对于对照有明显的变化,说明OS-诱抗剂对植物的防病作用可能是促使植物体内产生了酚类抗病物质。
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| 关 键 词： | 植物免疫学 OS-诱抗剂 抗菌活性 |
Induction of plant resistance by OS-elicitor |
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| SUN Ming-na;ZHANG Yong;MA Yan-ming;WANG Mei;GAO Tong-chun.Induction of plant resistance by OS-elicitor[J].Plant Protection,2005,31(1):37-39. |
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| Authors: | SUN Ming-na;ZHANG Yong;MA Yan-ming;WANG Mei;GAO Tong-chun |
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| Institution: | Key Laboratory of Crop Quality Amelioration in Anhui Province;Institute ofPlant Protection;Anhui Academy Agricultural Sciences;Hefei 230031;China |
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| Abstract: | The antagonistic experiments on PDA showed that OS-elicitor(0.4% Water) caused various phytotoxicity to different fungi such as Rhizoctonia solani Kühn, R.cerealis Vander Hoeven, Sclerotinia sclerotiorum (Lib.) De Bary, Pythium aphanidermatum (Eds.)Fitzp.and Fusarium oxysporum f.sp cucumerinum. The extracts of cucumber leaves treated with OS-elicitor showed inhibitory effects on the growth of F. oxysporum f.sp cucumerinum spore.A HPLC analysis demonstrated that the phenolic contents in the extract of cucumber leaves treated with OS-elicitor were different from that in the extract of untreated leaves. |
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| Keywords: | plant immunology \ OS-elicitor \ fungistasis |
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