| 低温胁迫对黄瓜嫁接苗和自根苗保护酶活性的影响 |
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| 引用本文： | 冯新炘,于贤昌,郭恒俊,马红,魏民.低温胁迫对黄瓜嫁接苗和自根苗保护酶活性的影响[J].山东农业大学学报(自然科学版),2002,33(3):302-304. |
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| 作者姓名： | 冯新炘 于贤昌 郭恒俊 马红 魏民 |
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| 作者单位： | 1. 山东农业大学,生命科学学院,山东,泰安,271018
2. 山东农业大学,园艺系,山东,泰安,271018 |
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| 基金项目： | 山东自然科学基金资助项目 |
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| 摘 要： | 研究了以黄瓜自根苗为对照，以黑籽南瓜为砧木的长春密刺黄瓜嫁接苗在5℃低温腔迫下叶片与根系SOD、CAT和POD活性的变化。结果表明，在低温胁有和低温胁迫过程中，嫁接苗叶片SOD、CAT活性都高于自根苗，而根系中酶活性两者差异较小。本研究发现，利用黑籽南瓜为砧木嫁接，可使长春密刺黄瓜嫁接苗地上部在低温胁迫下获得高于自根苗的保护酶活性，进而具有了比自根苗强的抗低温胁迫能力。
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| 关 键 词： | 低温胁迫 黄瓜 嫁接苗 自根苗 酶活性 |
| 文章编号： | 1000-2324(2002)03-0302-03 |
| 修稿时间： | 2001年12月31 |
EFFECT OF LOW TEMPERATURE STRESS ON THE PROTECTIVE-ENZYME ACTIVITY OF GRAFTED CUCUMBER SEEDLING AND OWN-ROOT CUCUMBER SEEDLING |
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| FENG Xin ,YU Xian-chang ,GUO Heng-jun ,MA Hong ,WEI Min.EFFECT OF LOW TEMPERATURE STRESS ON THE PROTECTIVE-ENZYME ACTIVITY OF GRAFTED CUCUMBER SEEDLING AND OWN-ROOT CUCUMBER SEEDLING[J].Journal of Shandong Agricultural University,2002,33(3):302-304. |
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| Authors: | FENG Xin YU Xian-chang GUO Heng-jun MA Hong WEI Min |
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| Institution: | FENG Xin 1,YU Xian-chang 2,GUO Heng-jun 1,MA Hong 2,WEI Min 2 |
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| Abstract: | Effects of the low temperature stress at 5 for 1d, 2d, 3d and 4d on SOD, POD and CAT activity of the grafted cucumber (Cucumis sativus L.CV. Changchunmici) seedling on figleaf gourd (Cucurbita ficifolia BOUCH) were studied. The results show that SOD and CAT activity of the grafted cucumber seedling leaves is higher than that of the own root seedling leaves, but the difference of POD and CAT activity in the roots of the two kinds of seedlings is slightly small. The research suggests that the leaves of the grafted seedlings have much strong chilling tolerance because of the high SOD, CAT and POD activity. |
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| Keywords: | cucumber seedlings grafting chilling strees protective enzyme activity |
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