| 渗透胁迫和外源脱落酸对梭梭幼苗生理特性的影响 |
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| 引用本文： | 郭新红,姜孝成,潘晓玲.渗透胁迫和外源脱落酸对梭梭幼苗生理特性的影响[J].生命科学研究,2000,4(4):337-342. |
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| 作者姓名： | 郭新红 姜孝成 潘晓玲 |
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| 作者单位： | 1. 湖南师范大学,生命科学学院植物学系,中国湖南,长沙,410081
2. 新疆大学,干旱生态环境研究所,中国新疆,乌鲁木齐,830046 |
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| 基金项目： | 国家“八六三”课题预研项目，中国科学院新疆阜康开放生态观察站资助项目!( 2 4 980 4 0 5) |
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| 摘 要： | 水分、渗透胁迫和外源脱落酸（ＡＢＡ）对旱生植物梭梭幼苗的某些生理特性存在显著影响。梭梭幼苗有很强的吸水能力，渗透胁迫下脯氨酸含量增加，其细胞膜相对透性对渗透胁迫不敏感，在脱水过程中具有较强的持水能力，外源ＡＢＡ加强了梭梭幼苗的抗渗透胁迫和抗脱水的能力。
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| 关 键 词： | 梭梭幼苗 渗透胁迫 脱落酸 生理特性 旱生 藜科 |
Effects of Osmotic Stress and Exogenous ABA on Some Physiological Properities of H.ammodendron(mey)Bge Seedlings |
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| GUO Xin-hong,JIANG Xiao-cheng,PAN Xiao-ling.Effects of Osmotic Stress and Exogenous ABA on Some Physiological Properities of H.ammodendron(mey)Bge Seedlings[J].Life Science Research,2000,4(4):337-342. |
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| Authors: | GUO Xin-hong JIANG Xiao-cheng PAN Xiao-ling |
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| Abstract: | Significant effects of osmotic stress and exogenons abscisic acid (ABA) on some physiological properities of Haloxylon ammodendron(Mey.)Bge seedlings were observed. H.ammodendron(Mey.)Bge seedlings had the strong ability to absorb water in cultivating and retaining water during dehydration,the content of the free proline of H.ammodendron(Mey)Bge seedlings increased under osmotic stress.Its permeability of cell membrane was insensitive to osmotic stress.Exogenous ABA might be advantagenous to its resistant ability against osmotic stress or dehydration. |
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| Keywords: | H ammodendron(Mey )Bge seedling osmotic stress abscisic acid physiological properities |
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