| 不同温度对马蹄金生理生化特征的影响 |
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| 引用本文： | 程玲,邱永福,田志宏.不同温度对马蹄金生理生化特征的影响[J].四川草原,2004(10). |
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| 作者姓名： | 程玲 邱永福 田志宏 |
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| 作者单位： | 长江大学生命科学学院，长江大学农学院湖北省涝渍灾害与湿地农业重点实验室，长江大学农学院湖北省涝渍灾害与湿地农业重点实验室 湖北 荆州 434025，湖北 荆州 434025，湖北 荆州 434025 |
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| 基金项目： | 湖北省重点科技发展计划资助项目(992P0603)，湖北省教育厅资助项目(992007)。 |
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| 摘 要： | 在不同温度处理下,马蹄金叶片中还原糖含量、可溶性蛋白质含量、丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性、过氧化物酶(POD)活性和过氧化氢酶(CAT)活性均发生明显的变化。结果表明,在温度胁迫下,马蹄金叶片中还原糖含量均增加;可溶性蛋白质含量在低温胁迫下呈下降趋势;MDA含量在-5℃时最大,在其他温度下均低于对照,随温度处理时间的延长MDA含量逐渐增加;SOD、POD和CAT活性在温度胁迫下均下降,但在0℃时SOD和POD活性上升。
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| 关 键 词： | 马蹄金 温度胁迫 生理生化特性 酶活性 抗寒性 耐热性 |
The Effect of Temperature on Physiological and Biochemical Characteristics of Creeping Dichondra (Dichondra repens Forst.) |
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| CHENG Ling,QIU Yong-fu,TIAN Zhi-hong.The Effect of Temperature on Physiological and Biochemical Characteristics of Creeping Dichondra (Dichondra repens Forst.)[J].Journal of Sichuan Grassland,2004(10). |
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| Authors: | CHENG Ling QIU Yong-fu TIAN Zhi-hong |
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| Institution: | CHENG Ling1,2,QIU Yong-fu1,TIAN Zhi-hong1 |
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| Abstract: | Under the treatment of different temperature, we compared the contents of deoxidize carbohydrates, soluble protein, MDA and the activity of SOD, POD, CAT in leaf of creeping dichondra. The results showed that under temperature stress, the content of deoxidize carbohydrates in leaf increased; however, the content of soluble protein decreased. At-5℃, we got the highest content of MDA. At other situation, the content of MDA is lower than that at 25℃. However, after we elongated the treating time, the content increased. The activity of SOD, POD and CAT decreased under temperature stress except for SOD and POD at 0℃. |
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| Keywords: | Creeping dichondra (Dichondra repens Forst ) Temperature stress Physiological and biochemical characteristics Enzyme activity Cold resistance Heat tolerance |
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