| 2,3-丁二醇与水杨酸诱导匍匐翦股颖对镰刀菌枯萎病的抗性 |
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| 引用本文： | 房媛媛,马晖玲.2,3-丁二醇与水杨酸诱导匍匐翦股颖对镰刀菌枯萎病的抗性[J].草原与草坪,2015(3):83-87. |
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| 作者姓名： | 房媛媛 马晖玲 |
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| 作者单位： | 甘肃农业大学 草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃 兰州,730070 |
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| 基金项目： | 国家自然科学基金“丁二醇诱导匍匐翦股颖抗病性及其 ISR 机理研究-31360583”资助 |
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| 摘 要： | 分别采用不同浓度2,3-丁二醇(150、250、350、450、550μmol/L)、水杨酸(0.1、0.25、0.50、0.75、1.0mmol/L)处理匍匐翦股颖后接种尖孢镰刀菌,诱导匍匐翦股颖对镰刀菌枯萎病的抗性。结果表明,水杨酸各处理中抗病效果最高的仅为11.52%,水杨酸不能诱导匍匐翦股颖抗镰刀菌枯萎病;250~450μmol/L的2,3-丁二醇对匍匐翦股颖抗病性均有一定的诱导作用,其中250μmol/L的2,3-丁二醇处理抗病效果最佳,病情指数由对照的92降低至20,诱导效果可达78.26%,能够有效诱导匍匐翦股颖抗镰刀菌枯萎病。由此表明,SAR机制诱导剂水杨酸不能诱导匍匐翦股颖抗镰刀菌枯萎病,ISR机制诱导剂2,3-丁二醇能够有效诱导匍匐翦股颖抗镰刀菌枯萎病。
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| 关 键 词： | 匍匐翦股颖 2 3-丁二醇 水杨酸 镰刀菌枯萎病 |
Study on disease resistance of creeping bentgrass induced by 2,3-BD and SA |
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| Abstract: | Experiments by using 2,3-BD(150~550 μmol/L)and SA(0.1~1.0 mmol/L)to induce resistance of creeping bentgrass against Fusarium oxysporum were conducted.The results showed that the highest resist-ance percentage induced by SA was only 1 1.52%,which indicated that SA was not a proper inducer.2,3-BD with concentration ranged from 250 μmol/L to 450 μmol/L could induce the resistance.In which,2,3-BD at 250μmol/L had the best induction efficiency,and the disease index was decreased from 92 of the control to 20,the resistance effect reached 78.26%. |
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| Keywords: | creeping bentgrass 2 3-BD SA Fusarium oxysporum |
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