| 干旱胁迫对柔枝松幼苗丙二醛含量的影响 |
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| 引用本文： | 马书燕,李吉跃,彭祚登.干旱胁迫对柔枝松幼苗丙二醛含量的影响[J].安徽农业科学,2012,40(4):2099-2100. |
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| 作者姓名： | 马书燕 李吉跃 彭祚登 |
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| 作者单位： | 唐山职业技术学院,河北唐山,063000;华南农业大学林学院,广东广州510642;北京林业大学资源与环境学院,北京林业大学省部共建森林培育与保护教育部重点实验室,国家林业局干旱半干旱地区森林培育与生态系统研究重点实验室,北京100083;北京林业大学资源与环境学院,北京林业大学省部共建森林培育与保护教育部重点实验室,国家林业局干旱半干旱地区森林培育与生态系统研究重点实验室,北京100083 |
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| 基金项目： | 国家“948”引进国际先进农业科学技术项目 |
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| 摘 要： | 目的]探讨干旱胁迫对柔枝松(Pinus flexilis James.)幼苗丙二醛(MDA)含量的影响。方法]采用硫代巴比妥酸(TBA)法,测定了6个柔枝松种源2年生苗(Ra、Rsi、Rs、Rg、Rsd和Rl)在干旱胁迫过程中的MDA含量。结果]在整个干旱胁迫过程中种源Ra和Rsi的MDA含量变化较小,膜质受损程度较小,抵抗干旱的能力较强;种源Rs的MDA含量变化最大,膜质受损最严重,抵抗干旱的能力最弱。结论]为柔枝松的抗旱机理研究提供了理论依据。
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| 关 键 词： | 柔枝松 引种 种源 丙二醛 |
Effects of Drought Stress on the Content of Malondialdehyde in Pinus flexilis James.Seedlings |
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| Institution: | MA Shu-yan et al(Tangshan Vocational & Technical College,Tangshan,Hebei 063000) |
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| Abstract: | Objective] The aim was to explore effects of drought stress on the content of malondialdehyde(MDA) in Pinus flexilis James.seedlings.Method] Contents of MDA in two-year-old seedlings of six Pinus flexilis James.provenances like Ra,Rsi,Rs,Rg,Rsd and Rl under drought stress were determined by thibabituric acid(TBA) method.Result] Provenances Rsi and Ra had a lower content of MDA during the whole process of drought stress,and the damage of their membranous was relatively small,so their drought-resistance capacity was relatively strong.On the contrary,provenance Rs had a higher content of MDA,and damage of its membranous was the most serious,so its drought-resistance capacity was the weakest.Conclusion] The research provides theoretical basis for studies on the drought resistance mechanism of Pinus flexilis James. |
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| Keywords: | Pinus flexilis James Introduction Provenances Malondialdehyde |
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