| 高温/渗透双重胁迫对大豆某些生理反应具累加效应的初报 |
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| 引用本文： | 韩永华,郑易之,李甜,高扬.高温/渗透双重胁迫对大豆某些生理反应具累加效应的初报[J].大豆科学,2001,20(1):41-44. |
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| 作者姓名： | 韩永华 郑易之 李甜 高扬 |
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| 作者单位： | 东北师范大学生命科学院, |
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| 基金项目： | 吉林省科委! (96 30 5 0 ),国家留学基金委员会资助项目 |
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| 摘 要： | 对“吉林27号”和“白农6号”大豆幼苗进行了单纯高温、渗透和高温与渗透双重处理。发现三种胁迫处理均导致两品种幼苗叶片相对含水量下降,相对电导率和丙二醛（MDA）含量升高。高温/渗透双重胁迫对含水量影响、对质膜透性和膜脂过氧化损伤近似于两单项胁迫效应之和。此外,胁迫作用可诱导两品种超氧物歧化酶（SOD）活性升高,使“白农6号”过氧化氢酶（CAT）活性上升。胁迫处理使“吉林27号”CAT活性降低。
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| 关 键 词： | 高温 渗透胁迫 双重胁迫 抗氧化保护酶 大豆 生理反应 累加效应 |
| 文章编号： | 1000-9841(2001)01-0041-04 |
EFFECT OF HIGH TEMPERATURE OR/AND OSMOTIC STRESS ON PHYSIOLOGICAL CHARACTERISTICS IN SEEDLING OF TWO SOYBEAN CULTIVARS |
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| Han Yonghua,Zheng Yizhi,Li Yian,Gao Yang.EFFECT OF HIGH TEMPERATURE OR/AND OSMOTIC STRESS ON PHYSIOLOGICAL CHARACTERISTICS IN SEEDLING OF TWO SOYBEAN CULTIVARS[J].Soybean Science,2001,20(1):41-44. |
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| Authors: | Han Yonghua Zheng Yizhi Li Yian Gao Yang |
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| Abstract: | The seedlings of two soybean cultivars "Jilin 27" and "Bainong 6" were exposed to high temperature or/and osmotic conditions. Under stresses, the relative water content (%) of the stressed leaves decreased. The leakage of electrolytes (%) and MDA content of the stressed leaves increased. Effect of double stresses of high temperature and osmotic stress on soybean leaves was approximately the sum of that under two single stresses. In addition, SOD activities of "Bainong 6", and CAT activities of "Jilin 27" increased under stress conditions. But CAT activities of "Jilin 27" declines. |
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| Keywords: | High temperatuer Osmotic stress Double stresses Anti-oxidant enzymes Soybean |
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