| 几种荒漠植物干旱休眠机理的初步研究 |
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| 引用本文： | 刘扬,周海燕,赵昕,郭群,贺郝钰,苏洁琼.几种荒漠植物干旱休眠机理的初步研究[J].中国沙漠,2011,31(1):76-81. |
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| 作者姓名： | 刘扬 周海燕 赵昕 郭群 贺郝钰 苏洁琼 |
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| 作者单位： | (1.中国科学院 寒区旱区环境与工程研究所 沙坡头沙漠试验研究站/极端环境生物抗逆特性与生物技术实验室,甘肃 兰州 730000; 2.中国科学院 研究生院, 北京 100049) |
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| 基金项目： | 国家自然科学基金项目(30870383;30740051); 国家科技支撑项目(2007BAD54B05)共同资助 |
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| 摘 要： | 研究了阿拉善荒漠区天然生长的荒漠植物梭梭(Haloxylon ammodendron)、骆驼蓬(Peganum harmala)、白刺(Nitraria tangutorum)、霸王(Zygophyllum xanthoxylon)、红砂(Reaumuria soongorica)、珍珠(Salsolapasserina )、油蒿(Artemisia ordosica)叶片的相对含水量、脯氨酸、甜菜碱、海藻糖以及脱落酸(Abscisic Acid,ABA)含量在不同生长季节的变化特征。结果表明,ABA可促进脯氨酸、甜菜碱的积累;脯氨酸在9月累积较多,甜菜碱在7月大量累积,海藻糖在5月和9月积累较多,脱落酸在9月累积较多。脱落酸和脯氨酸对植物休眠可能存在着促进作用。
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| 关 键 词： | 干旱休眠机理 脱落酸 海藻糖 脯氨酸 甜菜碱 |
| 收稿时间： | 2010-5-19 |
| 修稿时间： | 2010-7-7 |
Preliminary Study on Dormancy Mechanism of Several Desert Plants under Drought Stress |
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| LIU Yang,ZHOU Hai-yan,ZHAO Xin,GUO Qun,HE Hao-yu,SU Jie-qiong.Preliminary Study on Dormancy Mechanism of Several Desert Plants under Drought Stress[J].Journal of Desert Research,2011,31(1):76-81. |
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| Authors: | LIU Yang ZHOU Hai-yan ZHAO Xin GUO Qun HE Hao-yu SU Jie-qiong |
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| Institution: | (1.Shapotou Desert Research and Experiment Station/Extreme Stress Resistance and Biotechnology Laboratory, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China) |
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| Abstract: | Changes in contents of water,proline,betaine,trehalose,and ABA(abscisic acid) in leaves of Haloxylon ammodendron,Peganum harmala,Nitraria tangutorum,Zygophyllumant hoxylon,Reaumuria soongorica,Salsol apasserina,and Artemisia ordosica in Alxa desert in different growing seasons are investigated.The result shows that the content of proline is the highest in September;the content of betaine is the highest in July;the content of trehalose is the highest in May and Sep;while ABA is the highest in September.It su... |
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| Keywords: | drought dormancy mechanism abscisic acid trehalose proline betaine |
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