| 稻瘟病菌激发子诱导非寄主植物的抗病效果 |
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| 引用本文： | 李金波,纪春艳,王振中.稻瘟病菌激发子诱导非寄主植物的抗病效果[J].植物病理学报,2008,38(1):108-112. |
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| 作者姓名： | 李金波 纪春艳 王振中 |
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| 作者单位： | 教育部生物防治工程研究中心华南农业大学植物病理生理学研究室 广州 510642 |
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| 基金项目： | 国家自然科学基金
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广东省自然科学基金 |
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| 摘 要： | Hyphal cell wall crude elicitor(CWE)of rice blast pathogen could induce hypersensitive response in tobacco and induce other nonhost plants to be resistant to other fungal pathogens.When corn was treated with CWE,they inhibited the infection of Exserohilum turcicum and Curvularia lunata,and when plants of capsicum and cucumber were treated with CWE,they inhibited the infection of Colletotrichum gloeospori-oides.CWE solution showed no bioactivity on spore germination and hyphal growth of the experiment fungi in vitro.Nonhost resistance induced by CWE to other fungal pathogens was not complete resistance.The induced resistant effect(IRE) increased as CWE concentration increased,however,IRE had somehow satura-ted concentration of CWE.Induced nonhost resistance by incompatible pathogen was quantitative to other compatible pathogens.The induced resistance was best at 2 or 3 d after CWE treatment,and then decreased.IRE was about 20 percent in 10 d after CWE treatment.
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| 关 键 词： | 稻瘟病菌 激发子 非寄主植物 抗病效果 plants pathogen rice blast elicitor cell wall induced 持久性 类型 寄主抗病性 免疫作用 病原微生物 |
| 收稿时间： | 2007-02-05 |
Resistance induced by hyphal cell wall elicitor of rice blast pathogen in nonhost plants |
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| LI Jin-bo,JI Chun-yan,WANG Zhen-zhong.Resistance induced by hyphal cell wall elicitor of rice blast pathogen in nonhost plants[J].Acta Phytopathologica Sinica,2008,38(1):108-112. |
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| Authors: | LI Jin-bo JI Chun-yan WANG Zhen-zhong |
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| Institution: | Engineering Research Center of Biological Control, Ministry of Education, Laboratory of Physiological Plant Pathology, South China Agricultural University, Guangzhou 510642, China |
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| Abstract: | Hyphal cell wall crude elicitor(CWE) of rice blast pathogen could induce hypersensitive response in tobacco and induce other nonhost plants to be resistant to other fungal pathogens.When corn was treated with CWE,they inhibited the infection of Exserohilum turcicum and Curvularia lunata,and when plants of capsicum and cucumber were treated with CWE,they inhibited the infection of Colletotrichum gloeospori-oides.CWE solution showed no bioactivity on spore germination and hyphal growth of the experiment fungi in vitro.Nonhost resistance induced by CWE to other fungal pathogens was not complete resistance.The induced resistant effect(IRE) increased as CWE concentration increased,however,IRE had somehow satura-ted concentration of CWE.Induced nonhost resistance by incompatible pathogen was quantitative to other compatible pathogens.The induced resistance was best at 2 or 3 d after CWE treatment,and then decreased.IRE was about 20 percent in 10 d after CWE treatment. |
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| Keywords: | Magnaporthe grisea elicitor nonhost induced resistance |
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