| 利用溃疡菌毒素筛选抗溃疡病杨树品种 |
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| 引用本文： | 任嘉红,张晓刚,张桂萍. 利用溃疡菌毒素筛选抗溃疡病杨树品种[J]. 山西大学学报(自然科学版), 2004, 27(1): 68-71 |
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| 作者姓名： | 任嘉红 张晓刚 张桂萍 |
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| 作者单位： | 1. 晋东南师范专科学校,生化系,山西,长治,046011
2. 山西长治市林科所,山西,长治,046000 |
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| 摘 要： | 通过测定杨树溃疡病毒素粗提物处理的6种杨树枝务的叶片电导率、脯氨酸含量、多酚氧化酶和过氧化物酶的活性，研究了毒素的致病性及不同杨树品种的抗病性．结果表明：叶片电导率越大，杨树的抗性越差；叶片脯氨酸含量越多，杨树抗性越强；多酚氧化酶和过氧化物酶的活性越强，杨树抗性越好．这4个指标均能很好的反映杨树不同品种对溃疡菌的抗病性．这表明，用溃疡菌毒素筛选抗溃疡病杨树品种具有可行性．
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| 关 键 词： | 溃疡菌毒素 抗溃疡病 杨树 电导率 脯氨酸 |
| 文章编号： | 0253-2395(2004)01-0068-04 |
| 修稿时间： | 2003-02-18 |
Selection of Canker-resistance Varieties for Poplar by Using Dothiorella gregaria Toxin |
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| REN Jiahong,ZHANG Xiaogang,ZHANG Guiping. Selection of Canker-resistance Varieties for Poplar by Using Dothiorella gregaria Toxin[J]. Journal of Shanxi University (Natural Science Edit, 2004, 27(1): 68-71 |
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| Authors: | REN Jiahong ZHANG Xiaogang ZHANG Guiping |
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| Affiliation: | REN Jiahong~1,ZHANG Xiaogang~2,ZHANG Guiping~1 |
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| Abstract: | Branchs of 6 poplar varieties were treated with rough Dothiorella gregaria toxin extractive,and leaf electric conductivity,the content of leaf proline,leaf peroxidase and leaf polypheneoloxidase activities were determined,respectively.Moreover, D.gregaria toxin pathogenicity and canker-resistance of dirrerent poplar varieties were studied,respectively.The canker-resistance of poplar decreased with the increasing of leaf electric conductivity.The canker-resistance of poplar increased with the increasing of the content of leaf proline.with the increasing of leaf peroxidase and leaf polypheneoloxidase activities.The four indices suggested the canker-resistance of different poplar varieties.All these showed that selection of canker-resistance varieties for poplar by D.gregaria toxin is feasible. |
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| Keywords: | poplar canker Dothiorella gregaria toxin canker-resistance selection |
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