| 外源亚精胺对芽涝玉米根系保护作用的研究 |
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| 引用本文： | 刘丹,刘美艳,俞立璇,李雪华,张健.外源亚精胺对芽涝玉米根系保护作用的研究[J].玉米科学,2013,21(3):61-65. |
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| 作者姓名： | 刘丹 刘美艳 俞立璇 李雪华 张健 |
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| 作者单位： | 江苏师范大学生命科学学院,江苏 徐州,221116 |
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| 基金项目： | 江苏省高校自然科学基金研究项目(09KJD180004) |
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| 摘 要： | 以农大108为材料，研究外源亚精胺对淹涝胁迫下玉米幼苗根系细胞膜透性、乳酸脱氢酶(LDH)和乙醇脱氢酶(ADH)活性以及根尖细胞核DNA损伤情况的影响。结果表明，亚精胺能维持淹涝胁迫下玉米根细胞膜透性的稳定，延缓乳酸脱氢酶和乙醇脱氢酶活性的上升，降低根尖细胞核DNA的损伤百分比和级别。外源亚精胺浸种能提高玉米对芽涝的抵抗能力。
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| 关 键 词： | 玉米 亚精胺 细胞膜透性 乳酸脱氢酶 乙醇脱氢酶 |
| 收稿时间： | 6/5/2012 12:00:00 AM |
Protective Effect of Exogenous Spermidine on Maize Root System under Water Logging Stress |
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| LIU Dan,LIU Mei-yan,YU Li-xuan,LI Xue- hua and ZHANG Jian.Protective Effect of Exogenous Spermidine on Maize Root System under Water Logging Stress[J].Journal of Maize Sciences,2013,21(3):61-65. |
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| Authors: | LIU Dan LIU Mei-yan YU Li-xuan LI Xue- hua and ZHANG Jian |
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| Institution: | School of Life Science, Jiangsu Normal University, Xuzhou 211116, China;School of Life Science, Jiangsu Normal University, Xuzhou 211116, China;School of Life Science, Jiangsu Normal University, Xuzhou 211116, China;School of Life Science, Jiangsu Normal University, Xuzhou 211116, China;School of Life Science, Jiangsu Normal University, Xuzhou 211116, China |
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| Abstract: | Nongda108 was selected as material, the effects of spermidine on the plasmalemma permeability, lactate dehydrogenase(LDH) activity, alcohol dehydrogenase(ADH) activity and nuclear DNA damage of maize seedlings under water logging stress were studied. The results showed that spermidine could maintain the stability of plasmalemma permeability of root under water logging stress, delay the ascent of LDH activity and ADH activity, reduce the DNA damage percentage and level of root tips nuclear. The ability of anti-waterlogging stress of maize seedlings was increased by soaking with exogenous spermidine. |
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| Keywords: | Maize Spermidine Plasmalemma permeability Lactate dehydrogenase Alcohol dehydrogenase |
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