| 中国沙棘和俄罗斯沙棘在不同土壤水分条件下保护酶系统和丙二醛的变化 |
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| 引用本文： | 刘瑞香,杨劼,高丽.中国沙棘和俄罗斯沙棘在不同土壤水分条件下保护酶系统和丙二醛的变化[J].华北农学报,2006,21(2):87-90. |
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| 作者姓名： | 刘瑞香 杨劼 高丽 |
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| 作者单位： | 1. 内蒙古大学,生命科学学院,内蒙古,呼和浩特,010021;内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010019
2. 内蒙古大学,生命科学学院,内蒙古,呼和浩特,010021 |
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| 摘 要： | 在野外不同生境和田间不同干旱条件下对中国沙棘(Hippophae rhamnoides sinensis)和俄罗斯沙棘(Hippophae rhamnoides)的SOD,CAT和MDA进行研究后发现,野外沟底土壤水分含量显著高于坡上土壤水分含量,因此,沟底中国沙棘叶片的SOD,CAT活性高于坡上,MDA含量则为坡上植株高于沟底植株。田间不同干旱胁迫条件下,随着土壤含水量的降低,沙棘叶片中的SOD活性在胁迫初期显著降低,随着干旱胁迫时间的延长持续降低,沙棘叶片SOD活性表现为中国沙棘雄株>俄罗斯沙棘雌株>俄罗斯沙棘雄株>中国沙棘雌株;CAT活性在胁迫初期有所升高,之后开始逐渐下降,种间的差异为中国沙棘高于俄罗斯沙棘,雌、雄株的差异为雌株高于雄株;膜脂过氧化物质MDA的含量随着干旱胁迫程度的增加和胁迫时间的延长持续增加,雌株叶片内MDA含量高于雄株,中国沙棘的MDA含量高于俄罗斯沙棘。
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| 关 键 词： | 中国沙棘 俄罗斯沙棘 保护酶 干旱胁迫 丙二醛 |
| 文章编号： | 1000-7091（2006）02-0087-04 |
| 收稿时间： | 2005-05-11 |
| 修稿时间： | 2005-05-11 |
Changes in Protective Enzymes and Malondiadehyde in Leaves of Chinese Sea Buckthorn and Russian Sea Buckthorn under Different Soil Water Condition |
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| LIU Rui-xiang,YANG Jie,GAO Li.Changes in Protective Enzymes and Malondiadehyde in Leaves of Chinese Sea Buckthorn and Russian Sea Buckthorn under Different Soil Water Condition[J].Acta Agriculturae Boreali-Sinica,2006,21(2):87-90. |
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| Authors: | LIU Rui-xiang YANG Jie GAO Li |
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| Institution: | 1. College of Life Science, Inner Mongolia University, Huhhot 010021, China; 2. College of Ecology Environment, Inner Mongolia Agriculture University, Huhhot 010018, China |
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| Abstract: | Through analyzing the changes of protective enzymes activity and malondiadehyde content in leaves of Chinese sea buckthorn and Russian sea buckthorn in field drought stress, the results showed that the slope soil' s water content is significantly lower than the gully, so SOD activity and CAT activity in leaves of Chinese sea buckthorn in the slope decreased than that in the gully, MDA content in leaves of Chinese sea buckthorn in the slpoe increased than that in the gully. Under field drought stress, SOD activity in leaves of sea buckthorn decreased notablly in the initial stage of drought stress, then decreased with the prolonging of the drought stress time, SOD avtivity showed an order of male Chinese sea buckthorn > female Russian sea buckthorn > male Russian sea buckthorn > female Chinese sea buckthorn. CAT activity increased in the initial stage of drought stress, then decreased after the initial stage, the difference between species was Chinese sea buckthorn higher than Russian sea buckthorn, the difference between male and female was the male higher than female . The content of MDA increased with decreasing of water content of the soil, MDA content in leaves of female higher than that of male, MDA content in leaves of Chinese sea buckthorn higher than that of Russian sea buckthorn . |
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| Keywords: | Chinese sea buckthorn Russian sea buckthorn Protective enzymes Drought stress Malondiadehyde |
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