| 诱导棉花抗黄萎病的研究(2)尖孢镰刀菌的诱抗作用 |
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| 引用本文： | 吴洵耻,王学军.诱导棉花抗黄萎病的研究(2)尖孢镰刀菌的诱抗作用[J].植物病理学报,1990,20(3):225-228. |
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| 作者姓名： | 吴洵耻 王学军 |
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| 作者单位： | 山东农业大学植保系 |
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| 摘 要： | 从不同作物上获得的16个尖孢镰刀菌(Fusarium oxysporum)分离物,用棉苗进行致萎力和致病力检测后,选出萎蔫指数和病情指数相对较低的F86-15、F86-12、Fa三个分离物分别诱导棉花对黄萎病(Verticillium wilt)的抗病性,以F86-15效果最好。测试结果表明,棉株经过尖孢镰刀菌诱导的,其根部类萜烯醛类物质含量比未诱导的均有不同程度的增加。用孢子萌芽法鉴定该物质的抑菌活性,证实对棉花黄萎病菌分生孢子萌发有抑制作用。
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| 关 键 词： | 棉花黄萎病 尖孢镰刀菌 诱抗性 |
STUDIES ON INDUCED RESISTANCE TO VERTICILLIUM WILT IN COTTON (2) EFFECT OF INDUCED RESISTANCE OF FUSARIUM OXYSPORUM |
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| Wu Xunchi,Wang Xuejun.STUDIES ON INDUCED RESISTANCE TO VERTICILLIUM WILT IN COTTON (2) EFFECT OF INDUCED RESISTANCE OF FUSARIUM OXYSPORUM[J].Acta Phytopathologica Sinica,1990,20(3):225-228. |
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| Authors: | Wu Xunchi Wang Xuejun |
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| Institution: | Shandong Agricultural University |
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| Abstract: | Three hypowilting and hypovirulent isolates of Fusarium oxysporum were selected from 16 isolates collected from different hosts.Resistance to Verti cillium wilt was induced by inoculating the cotton seedlings with the three isolates respectively. Isolate F86-15 there was the most observable effects from isolates F86-15 than from others. The concentration of terpenoid aldehydes in induced cotton plants was higher than that in uninduced plants. Terpenoid aldehydes from induced cotton plants inhibited the germination of conidia of Verticillium dahliae Kleb. |
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