| 籽用南瓜苗期接种辣椒疫霉菌对POD、PPO活性影响的研究 |
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| 引用本文： | 周克琴,崔崇士,屈淑平.籽用南瓜苗期接种辣椒疫霉菌对POD、PPO活性影响的研究[J].吉林农业科学,2003,28(2):37-40. |
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| 作者姓名： | 周克琴 崔崇士 屈淑平 |
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| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,哈尔滨,150040
2. 东北农业大学园艺学院,哈尔滨,150030 |
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| 基金项目： | 黑龙江省"九五"科技攻关项目 |
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| 摘 要： | 先对29份材料进行抗性鉴定后,对抗性不同的籽用南瓜材料进行酶活性分析。结果表明,在健康植株中,过氧化物酶(POD)、多酚氧化酶(PPO)活性在抗、感品种中差异不明显;病菌侵染后POD活性在感病材料中增长幅度大于在抗病材料中的增长幅度,但感病品种酶活性下降的幅度比抗病品种下降的快;PPO活性在抗病材料中的增长幅度大于在感病材料中的增长幅度。接种后POD、PPO活性均是抗病品种高于感病品种,与抗病性呈正相关趋势。
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| 关 键 词： | 南瓜 疫病 POD PPO |
| 文章编号： | 1003-8701(2003)02-0037-04 |
| 修稿时间： | 2002年11月11 |
Study on the Changes of POD and PPO Activity of Squash Seedling After Inoculation with Phytophthora Capsici |
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| Abstract: | A test was carried out to identify the resistance to P.capsici of29samples,and the enzyme actvity of squash materials with different resistance was analyzed.The results showed that:in healthy plants,there is not significant difference of POD and PPO activity between resistant and susceptibl materials.After infection,there is a bigger increase of POD activity in susceptible mate-rials than that in resistant materials;but there is a bigger increase of PPO activity in resistant mate-rials than that in susceptible materials.After inoculation,POD and PPO activity of resistant mate-rials are higher than that of susceptible materials,which are related positively to disease resistance. |
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| Keywords: | POD PPO |
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