| 渗透胁迫和外源ABA对旱生植物梭梭幼苗某些生理性状的影响 |
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| 引用本文： | 姜孝成,潘晓玲,郭新红.渗透胁迫和外源ABA对旱生植物梭梭幼苗某些生理性状的影响[J].首都师范大学学报(自然科学版),2001,22(3):65-69. |
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| 作者姓名： | 姜孝成 潘晓玲 郭新红 |
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| 作者单位： | 1. 湖南师范大学生命科学学院
2. 新疆大学干旱生态环境研究所 |
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| 基金项目： | 国家科技部863预研项目,中国科学院阜康开放生态试验站资助项目 |
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| 摘 要： | 梭梭幼苗在H氏平衡溶液中培养至第4天时，其细胞膜透性、可溶性糖和脯氨酸含量均出现明显的转折变化；甘露醇溶液渗透胁迫引起幼苗的细胞膜电解质渗漏率下降，脯氨酸含量大幅度升高，可溶性糖含量则呈现交替变化；外源ABA则以对上生理指标有不同的影响。因此其作用机制可能与渗透胁迫无直接的相关性。
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| 关 键 词： | 梭梭 幼苗 渗透胁迫 ABA 可溶性糖 脯氨酸 膜透性 固沙树种 生理指标 |
| 修稿时间： | 2000年7月14日 |
Influence of Osmotic Stress and Exogenous ABA on Several Physiological Characters of the Seedlings of H. Ammodendron (Mey.) Bge |
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| Jiang Xiaocheng,\ Pan Xiaoling,\ Guo Xinhong.Influence of Osmotic Stress and Exogenous ABA on Several Physiological Characters of the Seedlings of H. Ammodendron (Mey.) Bge[J].Journal of Capital Normal University(Natural Science Edition),2001,22(3):65-69. |
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| Authors: | Jiang Xiaocheng \ Pan Xiaoling \ Guo Xinhong |
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| Institution: | Jiang Xiaocheng 1\ Pan Xiaoling 2\ Guo Xinhong 1 |
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| Abstract: | By cultured for 4 days in H equilibrium solution, the cell membrane permeability, the content of soluble sugars and proline of the seedlings of xerophyte Haloxylon ammodendron (Mey.) Bge show distinct turning changes. Osmotic stress by cultured in mannitol solution results the dropping of the leakage of electrolyte through out cell membrane, rising of the content of proline by a large margin and the up\|down changes of soluble sugars. Exogenous ABA has different effects on the above physiological indexes, so it is inferred that ABA maybe not play the role as a signal transducer relating osmotic stress and the inner physiological changes at the stage of seedling of this kind of plant. |
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| Keywords: | Haloxylon ammodendron (Mey )Bge seedlings osmotic stress ABA soluble sugars proline permeability of cell membrane |
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