| 黄瓜不同品种苗期感染枯萎病菌后几种酶活性的变化 |
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| 引用本文： | 李新,司龙亭.黄瓜不同品种苗期感染枯萎病菌后几种酶活性的变化[J].华北农学报,2007,22(B08):9-11. |
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| 作者姓名： | 李新 司龙亭 |
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| 作者单位： | 沈阳农业大学园艺学院,辽宁沈阳110161 |
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| 基金项目： | 辽宁省“十五”科技攻关课题（2002215004） |
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| 摘 要： | 分析了黄瓜不同抗性品种受枯萎病菌侵染后,叶片组织内过氧化物酶（POD）、多酚氧化酶（PPO）、苯丙氨酸解氨酶（PAL）和超氧化物歧化酶（SOD）活性的变化。结果表明,无论是抗病品种还是感病品种,在接种枯萎病菌后,随着接种天数的增加,4种酶活性与对照相比均有一定程度的升高,但抗病品种的酶活性增加幅度高于感病品种。说明这4种酶在黄瓜对枯萎病的抗性机制中起了重要作用。
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| 关 键 词： | 黄瓜 镰刀菌枯萎病 过氧化物酶 多酚氧化酶 苯丙氨酸解氨酶 超氧化物歧化酶 |
| 文章编号： | 1000-7091（2007）增刊-0009-03 |
| 修稿时间： | 2007-04-12 |
Some Changes of Enzyme Activities of Different Cucumber Cultivars Infected by Fusarium Oxysporum |
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| LI Xin,SI Long-ting.Some Changes of Enzyme Activities of Different Cucumber Cultivars Infected by Fusarium Oxysporum[J].Acta Agriculturae Boreali-Sinica,2007,22(B08):9-11. |
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| Authors: | LI Xin SI Long-ting |
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| Institution: | College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China |
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| Abstract: | The dynamic changes in POD, PPO, PAL, SOD in leaves of different cucumber cultivars were studied after they were infected by fusarium oxysporum at seeding stage. The results showed that the enzyme activities were raised following the days past when they were infected by fusarium oxysporum, but POD, PPO, PAL,SOD enzyme activities of resistant varieties was higher than the susceptible ones. These reactions illustrate the four enzymes play an important role after they were infected by fusarium oxysporum at seeding stage. |
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| Keywords: | Cucumber Fusarium oxyspomm POD PPO PAL SOD |
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