| 杨树过氧化物酶活性,气孔密度和大小与黑斑病抗性的关系 |
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| 引用本文： | 韩正敏,尹佟明.杨树过氧化物酶活性,气孔密度和大小与黑斑病抗性的关系[J].南京林业大学学报(自然科学版),1998,22(4):91-94. |
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| 作者姓名： | 韩正敏 尹佟明 |
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| 作者单位： | 南京林业大学森林资源与环境学院 |
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| 摘 要： | 测定了黑杨派杨树叶面气孔密度和大小、蒸腾速率及接种病菌后过氧化物酶的变化与杨树抗黑斑病性能的关系。研究表明，杨树叶面气孔密度和大小、蒸腾速率与抗病性不存在相关性。过氧化物酶活性与抗病性关系较密切。叶片接种黑斑病菌后，以抗病品种过氧化物酶活性升高较为明显，而感病品种略有升高但不明显；酶活性变化有两个高峰，抗病品种的峰Ⅰ和Ⅱ值均比感病品种的高。
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| 关 键 词： | 杨树 杨树黑斑病 抗病机理 过氧化物酶 气孔 |
THE RELATIONSHIP BETWEEN THE RESISTANCE OF POPLAR TO MARSSONINA BRUNNEA AND SIZE AND DENSITY OF STOMATA AND PEROXIDASE ACTIVITY |
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| Han Zhengmin,Yin Tongming.THE RELATIONSHIP BETWEEN THE RESISTANCE OF POPLAR TO MARSSONINA BRUNNEA AND SIZE AND DENSITY OF STOMATA AND PEROXIDASE ACTIVITY[J].Journal of Nanjing Forestry University(Natural Sciences ),1998,22(4):91-94. |
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| Authors: | Han Zhengmin Yin Tongming |
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| Institution: | College of Forest Resources and Environment Nanjing Forestry University Nanjing 210037 |
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| Abstract: | The size and density of stomata, transpiration rate and activity of peroixase of poplar leaves inoculated with Marssonina brunnea of some poplars in Section Aigeiros were analyzed with the resistance to Marssonina brunnea. The results indicated that there was no relationship between the size and density of stomata, transpiration rate and the resistance, but the activity of peroxidase was closely related to the resistance of poplar. After inoculation with the pathogen ( M. brunnea f. sp. multigermtubi) peroxidase activities of all species increased. The increasing levels of the resistant species were higher than that of the susceptible ones. Activities of the enzymes showed two peaks. |
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| Keywords: | Poplar Marssonina brunnea Resistance Peroxidase |
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