LIN Ning,LIU Kun-cheng,YU Yan-ping,et al.Influence of Low Temperature Stress on Physiological Characteristics of Erythrophleum fordii Seedlings[J].Northern Horticulture,2012,36(24):87-90.
低温胁迫对格木幼苗生理特性的影响
- Title:
- Influence of Low Temperature Stress on Physiological Characteristics of Erythrophleum fordii Seedlings
- 文章编号:
- 1001-0009（2012）24-0087-04
- Keywords:
- Erythrophleum fordii; low temperature stress; physiological characteristics; stress resistance
- 分类号:
- S 792
- 文献标志码:
- A
- 摘要:
- 以1 a生格木幼苗为试验材料，设0、4、8、12、25℃（CK）5个不同梯度温度进行人工低温胁迫，对低温胁迫下格木幼苗电导率、丙二醛（MDA）含量、可溶性糖含量、脯氨酸（Pro）、超氧化物歧化酶（SOD）等的变化规律进行研究。结果表明：随着温度的降低，相对电导率和MDA含量逐渐增大，可溶性糖和Pro含量呈先降后升但总体低于CK的变化规律，SOD含量呈先增大后减小的变化趋势，但整体高于对照。
- Abstract:
- Taking one-year-old Erythrophleum fordii seedlings as experimental materials，setting up 0，4，8，12，25℃five gradient of low temperature for artificial low temperature stress，taking 25℃ ambient temperature as control，the temperature，the conductivity，MDA，soluble sugar，proline，SOD changes in leaves of Erythrophleum fordiiwere studied.The results showed that with the decreasing of temperature，relative electrolytic leakage and MDA content increased,the soluble sugar and proline decreased firstly and then increased and all of them weaker than the control，SOD content increased first and then decreased，but overall than the control.
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备注/Memo
第一作者简介：林宁（1965-），男，本科，工程师，现主要从事林业科研及生产工作。E-mail：linn007@163.com.