| 草坪草褐斑病菌粗毒素液对寄主叶片防御酶体系的影响 |
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| 引用本文： | 孙淑琴,李荣华,杨秀荣,田涛.草坪草褐斑病菌粗毒素液对寄主叶片防御酶体系的影响[J].山东农业科学,2012,44(1):87-90. |
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| 作者姓名： | 孙淑琴 李荣华 杨秀荣 田涛 |
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| 作者单位： | 1. 天津市植物保护研究所,天津,300112
2. 沧州师范学院生命科学系,河北沧州,061001 |
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| 摘 要： | 分别利用草坪草褐斑病菌粗毒素5倍稀释液和10倍稀释液接种盆播坪草高羊茅,1周内逐天采集处理叶片,测定叶片防御酶(PAL、POD、PPO、CAT)活性变化。结果表明,坪草高羊茅叶片经粗毒素液处理1周内,PAL、POD、PPO活性较对照均有不同程度的提高,其总体变化趋势为先升高后降低,并且高浓度毒素处理较低浓度毒素处理的酶活性高,而经毒素处理后的坪草叶片CAT酶活性较对照却呈现下降的趋势。
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| 关 键 词： | 草坪草褐斑病菌 粗毒素 防御酶 |
Effect of Crude Toxin from Turf Grass Brown Blotch Pathogen on Defense Enzymes of Host Leaves |
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| SUN Shu-qin
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LI Rong-hua
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YANG Xiu-rong
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TIAN Tao.Effect of Crude Toxin from Turf Grass Brown Blotch Pathogen on Defense Enzymes of Host Leaves[J].Shandong Agricultural Sciences,2012,44(1):87-90. |
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| Authors: | SUN Shu-qin LI Rong-hua YANG Xiu-rong TIAN Tao |
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| Institution: | 1(1.Tianjin Institute of Plant Protection,Tianjin 300112,China; 2.Department of Life Science,Cangzhou Normal College,Cangzhou 061001,China) |
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| Abstract: | The defense enzymes(PAL,POD,PPO and CAT) in tall fescue leaves were determined by inoculating 5 times and 10 times of crude toxin diluent from pathogen of brown blotch.The leaf samples were collected day after day in one week.The results showed that the activity of PAL,POD and PPO in the treated tall fescue leaves increased at different degrees compared to the control and their overall trends were all increasing firstly followed by a decline.Compared to the treatments with low concentration toxin,the enzyme activity was higher after treated by toxin with high concentration.But the activity of CAT declined after treated by crude toxin. |
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| Keywords: | Pathogen of turf grass brown blotch Crude toxin Defense enzyme |
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