| 黄瓜叶片中糖和木质素含量与霜霉病诱导抗性的关系 |
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| 引用本文： | 骆桂芬,高郁芳.黄瓜叶片中糖和木质素含量与霜霉病诱导抗性的关系[J].植物病理学报,1997,27(1):65-69. |
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| 作者姓名： | 骆桂芬 高郁芳 |
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| 作者单位： | 1 吉林农业大学, 长春 130118;2 吉林特产专科学校, 长春 132000 |
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| 基金项目： | 本研究为吉林省科委资助项目 |
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| 摘 要： | 本研究采用已筛选出的诱导菌,进行茎部注射接种,活化植株的抗性潜能,增强抵抗黄瓜霜霉菌(Pseudoperonospora cubensis f.sp.cucumerinum)侵染的能力。进一步测定和分析木质素、糖含量与诱导抗性之间的关系。研究结果表明:凡经诱导的植株,叶片中可溶性总糖和木质素含量均显著高于未诱导叶片中的含量。诱导叶片中可溶性总糖含量分别为11.21%和10.66%;木质素含量分别为8.4%和7.8%;而对照株(未诱导)叶的可溶性总糖只有9.58%;木质素含量只有7%。试验结果表明,木质素和可溶性糖合成量的提高,是植物抗性潜能被激活的结果,是诱导抗性机制的一部分。
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| 关 键 词： | 黄瓜 霜霉病 诱导抗性 糖 木质素 |
RELATIONSHIP BETWEEN SUGAR,LIGNIN CONTENT AND RESISTANCE TO DOWNY MILDEW OF CUCUMBER |
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| Luo Guifen,Cui Juntao,Gao Yufang,Zhang Li.RELATIONSHIP BETWEEN SUGAR,LIGNIN CONTENT AND RESISTANCE TO DOWNY MILDEW OF CUCUMBER[J].Acta Phytopathologica Sinica,1997,27(1):65-69. |
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| Authors: | Luo Guifen Cui Juntao Gao Yufang Zhang Li |
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| Institution: | Dept. of Agronomy, Jilin Agricultural University, Changchun 130118 |
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| Abstract: | The experiment utilized two induced nonpathogenic fungi to inject in the stem of cucumber plant. The results shown that the active resistance and against ability to downy mildew were improved. All the foliages sugar and lignin content of the induced plants were higher than the contrast plant. The sugar were 11.21%, 10.66% and 9.58%, respectively. The lignin were 8.4%, 7.8% and 6.9%, respectively. These data indicated the induced-resistance caused by induced fungi related to the contents of soluble sugar and lignin, but also demonstrated that the contents of soluble sugar and lignin in cucumber plants were a part of mechanism of inducing resistance. |
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| Keywords: | Cucumber downy mildew Induced resistance Induced fungi Lignin Sugar |
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