| 希蒙得木对高温胁迫的生理响应 |
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| 引用本文： | 李晓清,曹小军,王启和,李荣伟,王准.希蒙得木对高温胁迫的生理响应[J].西南林学院学报,2011,31(3):1-6. |
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| 作者姓名： | 李晓清 曹小军 王启和 李荣伟 王准 |
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| 作者单位： | 四川省林业科学研究院,四川成都,610081 |
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| 基金项目： | 国家林业局948引进项目 |
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| 摘 要： | 以希蒙得木自然分布区和引种驯化的7个地理种源为研究对象，采用盆栽育苗温棚控温方法设置3个温度处理水平，观察其对高温胁迫的生理响应。结果表明：高温胁迫下，不同种源各生理指标表现出相似的变化规律；不同种源的叶片水分含量均在高温胁迫下下降，膜的通透性增加；不同种源幼苗叶片在T1处理下过氧化物酶（POD）活性显著高于对照，超氧化物歧化酶（SOD）活性低于对照，但在T2处理下，不同种源的SOD又表现出较高活性；T1和T22种高温胁迫，其丙二醛含量变化规律不明显，脯氨酸含量显著增加；可溶性蛋白随胁迫程度的加重，其含量变化趋势为先升后降；热胁迫下，各种源幼苗叶片可溶性糖含量变化规律不一致。
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| 关 键 词： | 希蒙得木 热胁迫 生理生化指标 |
Physiological Responses of Simmondsia chinensis Seedlings to High Temperature Stress |
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| LI Xiao-qing,CAO Xiao-jun,WANG Qi-he,LI Rong-wei,WANG Zhun.Physiological Responses of Simmondsia chinensis Seedlings to High Temperature Stress[J].Journal of Southwest Forestry College,2011,31(3):1-6. |
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| Authors: | LI Xiao-qing CAO Xiao-jun WANG Qi-he LI Rong-wei WANG Zhun |
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| Institution: | LI Xiao-qing,CAO Xiao-jun,WANG Qi-he,LI Rong-wei,WANG Zhun(Sichuan Academy of Forestry,Chengdu Sichuan 610081,China) |
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| Abstract: | The physiological response to the high temperature by 7 provenances of Simmondsia chinensis collected from both in its natural distribution area and in the introduction-domestication area was experimented with pot-grown seedlings in the temperature controlled greenhouse treated with three different levels of high temperature stress.The results indicated that the different provenances showed the similar way of change in the physiological indexes under high temperature stress.The leaf water content of the all... |
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| Keywords: | Simmondsia chinensis high temperature physiological and biochemical index |
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