| 不结球白菜感染芜菁花叶病毒后4种防御酶活性变化及其抗病相关性 |
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| 引用本文： | 刘琳,侯喜林,王利英,陈晓峰.不结球白菜感染芜菁花叶病毒后4种防御酶活性变化及其抗病相关性[J].南京农业大学学报,2009,32(3). |
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| 作者姓名： | 刘琳 侯喜林 王利英 陈晓峰 |
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| 作者单位： | 南京农业大学作物遗传与种质创新国家重点实验室,江苏,南京,210095 |
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| 摘 要： | 以4个不同抗性的高代自交系品种003-R-5、Y3-R-2、109-S-8、003-S-13为试材,研究了不结球白菜对芜菁花叶病毒的抗性与超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、苯丙氨酸解氨酶(PAL)、多酚氧化酶(PPO)活性变化的关系,并通过苗期接种观测不同时期叶片中4种酶的活性,结合病情指数作简单线性回归分析.结果表明,抗病品种健康植株的SOD活性低于感病品种,CAT、PAL、PPO活性则高于感病品种.接种病毒后各品种的4种防御酶活性较对照明显升高,抗病品种对病毒表现出较高的敏感性,酶活性明显高于感病品种.相关性分析表明,抗病性与接种病毒后酶活性变化幅度关系密切,4种防御酶均与抗病性呈正相关,其相关系数分别为0.776 0、0.959 1、0.977 4、0.999 1,其中PPO活性与抗病性达到极显著水平,接种后第8天PAL活性与抗病性呈显著正相关(r=0.937 5).
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| 关 键 词： | 不结球白菜 芜菁花叶病毒 超氧化物歧化酶 过氧化氢酶 苯丙氨酸解氨酶 多酚氧化酶 |
Changes of four protective enzyme activities and relationships to resistance in non-heading Chinese cabbage after infection of Turnip mosaic virus |
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| LIU Lin,HOU Xi-lin,WANG Li-ying,CHEN Xiao-feng.Changes of four protective enzyme activities and relationships to resistance in non-heading Chinese cabbage after infection of Turnip mosaic virus[J].Journal of Nanjing Agricultural University,2009,32(3). |
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| Authors: | LIU Lin HOU Xi-lin WANG Li-ying CHEN Xiao-feng |
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| Institution: | State Key Laboratory of Crop Genetics and Germplasm Enhancement;Nanjing Agricultural University;Nanjing 210095;China |
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| Abstract: | Four inbred lines of different resistance to Turnip mosaic virus(TuMV)of non-heading Chinese cabbage(Brassica campestris ssp.chinensis Makino) 003-R-5,Y3-R-2,109-S-8 and 003-S-13 were conducted in studying the relationship between the resistance and the activities of SOD,CAT,PAL,and PPO.The activity of SOD,CAT,PAL,and PPO was tested after the inoculation at seedling stage and a simple linear regression analysis was made associated with the disease index.The results were as follows:the resistance varieties h... |
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