| 短时间亚高温对蓖麻叶中几个与抗逆性有关生理指标的影响 |
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| 引用本文： | 彭向永,邱念伟,高飞.短时间亚高温对蓖麻叶中几个与抗逆性有关生理指标的影响[J].植物生理学通讯,2009(9):878-880. |
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| 作者姓名： | 彭向永 邱念伟 高飞 |
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| 作者单位： | 曲阜师范大学生命科学学院,山东曲阜273165 |
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| 基金项目： | 资助山东省实验教学示范中心建设项目. |
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| 摘 要： | 检测了短时间亚高温胁迫下盆栽40片叶龄的蓖麻叶中几个与抗逆性有关生理指标变化的结果表明，温度低于38℃时，蓖麻的叶绿素含量缓慢下降，高于38℃时，呈快速下降趋势；随着温度的升高，游离脯氨酸、丙二醛（MDA）含量和相对膜透性呈上升趋势，46℃下达到最大值；超氧化物歧化酶（SOD）、过氧化物酶（POD）和过氧化氢酶（CAT）的活性在低于43℃时与温度变化呈正相关，超过43℃则迅速下降。
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| 关 键 词： | 蓖麻 亚高温胁迫 抗逆性 生理指标 |
Effects of Sub-High Temperature in Short Time on Physiological Indexes Re- lated to Resistance of Castor-Oil Plant |
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| PENG Xiang-Yong＊,QIU Nian-Wei,GAO Fei.Effects of Sub-High Temperature in Short Time on Physiological Indexes Re- lated to Resistance of Castor-Oil Plant[J].Plant Physiology Communications,2009(9):878-880. |
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| Authors: | PENG Xiang-Yong＊ QIU Nian-Wei GAO Fei |
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| Institution: | (College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, China) |
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| Abstract: | Effects of sub-high temperature in short time on physiological indexes related to resistance of castor- oil plant at 4- to 5-leaf stage were measured in this study. The results showed that the content of chlorophyll decreased slowly blow 38 ℃ and it decreased rapidly above 38 ℃. Free proline content, malonaldehyde （MDA） content and relative membrane permeability were all increasing with the temperature elevated and those indexes reached maximum value under 46 ℃. The activities of superoxide dismutase （SOD）, peroxidase （POD） and catalase （CAT） had positive correlation with temperature changing below 43 ℃, and those indexes decreased markedly above 43 ℃. |
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| Keywords: | castor-oil plant sub-high temperature stress resistance physiological index |
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