| 树皮内酚类物质的含量及苯丙氨酸解氨酶的活性与杨树抗溃疡病的关系 |
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| 引用本文： | 阳传和,杨旺,周仲铭.树皮内酚类物质的含量及苯丙氨酸解氨酶的活性与杨树抗溃疡病的关系[J].林业科学,1989(4). |
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| 作者姓名： | 阳传和 杨旺 周仲铭 |
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| 作者单位： | 天津农学院，北京林业大学，北京林业大学 |
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| 摘 要： | 本文通过不同含水量盆栽苗的接种试验,结果表明,水分亏缺是杨树溃疡病发生发展的诱因。在树皮含水量高的植株中,苯丙氨酸解氨酶(PAL)的活性强,邻苯二酚和对-羟基苯甲酸等酚类物质的含量高,且它们的活性(或含量)随着树皮含水量的降低而降低。室内抑菌试验及盆栽苗的注射试验证明了邻苯二酚是寄主活体内的重要抑菌物质。
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| 关 键 词： | 杨树溃疡病 诱因 苯丙氨酸解氨酶 邻苯二酚 |
THE RELATION OF BARK PHENOLICS AND PHENYLALANINE AMMONIA-LYASE TO THE RESISTANCE OF POPLAR CANKER |
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| Yang Chuanhe.THE RELATION OF BARK PHENOLICS AND PHENYLALANINE AMMONIA-LYASE TO THE RESISTANCE OF POPLAR CANKER[J].Scientia Silvae Sinicae,1989(4). |
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| Authors: | Yang Chuanhe |
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| Institution: | Yang Chuanhe (Tianjin Agri culture College) Yang Wang Zhou Zhongming (Beijing Forestry University) |
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| Abstract: | The inoculation of potted transplants with different water contents in the greenhouse showned that water deficiency was a predisposition of the development of the poplar canker. A close correlation was found to exist among phenolics, phenylalanine ammonia-lyase(PAL) and host resistance. In the healthy transplants with high relative turgidity values, phenylalanine ammonia-lyase activity increased, meanwhile, the contents of some phenolic acids measured by high pressure liquid chromatography were high. The results of plate test and inoculation experiments of potted transplants injected with catechol solution demonstrated that catechol was a major inhibitor in living bark. |
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| Keywords: | Poplar canker Predisposition Phenylalanine ammonialyase Catechol |
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