| 马铃薯晚疫病抗性反应中木质素及防御酶活性的变化 |
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| 引用本文： | 李惠霞,王蒂.马铃薯晚疫病抗性反应中木质素及防御酶活性的变化[J].甘肃农业大学学报,2006,41(3):52-56. |
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| 作者姓名： | 李惠霞 王蒂 |
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| 作者单位： | 1. 甘肃农业大学农学院;甘肃农业大学草业学院植病系,甘肃,兰州,730070
2. 甘肃农业大学农学院 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以不含R基因的马铃薯水平抗性材料LBr-12和感病品种费乌瑞它(Favorita)为材料,接种马铃薯晚疫病菌 (P．infestand后,对马铃薯叶片中苯丙氨酸解氨酶(PAL)、多酚氧化酶(PPO)和过氧化物酶(POD)活性以及木质素含量变化进行了研究．结果表明,接种后LBr-12和Favorita的PAL、PPO、POD的酶活性都升高,其中抗性材料与感病品种相比,升高幅度大,持续时同长;同时抗病品种的木质素含量增幅也大于感病品种．
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| 关 键 词： | 马铃薯晚疫病 水平抗性 防御酶 木质素 |
| 文章编号： | 1003-4315（2006）03-0052-05 |
| 收稿时间： | 2006-01-07 |
| 修稿时间： | 2006-01-07 |
Change of lignin content and defense enzyme activity during resistant reaction to late blight in potato |
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| LI Hui-xia,WANG Di.Change of lignin content and defense enzyme activity during resistant reaction to late blight in potato[J].Journal of Gansu Agricultural University,2006,41(3):52-56. |
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| Authors: | LI Hui-xia WANG Di |
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| Institution: | 1. College of Agronomy,Gansu Agricultural Uiversity,Lanzhou 730070 ; College of Pratauclture, Gansu Agricultural Uiversity, Lanzhou 730070, China |
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| Abstract: | Horizontal resistance cultivar LBr-12 without R gene and susceptile cultivar Favorita of potato were taken as materials and inoculated against Phytophthora infestans. The dynamic changes of phen-lalanine aminonia-lyase (PAL),polyphenol oxidese(PPO) and peroxidase (POD) activities and lignin content were studied. The results showed that,the activities of PAL,PPO and POD in both cultivars were increased, in cultivar LBr-12,the activities of three enzymes were higher than that in cultivar Favorita,and sustained longer time. The lignin content in the cultivar LBr-12 increased much more than that in the cultivar Favorita . |
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| Keywords: | potato late blight horizontal resistance defense enzymes lignin |
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