| 外源脯氨酸对盐胁迫下大豆离体胚再生植株生长及渗透调节的影响 |
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| 引用本文： | 贺岩,陈云昭,王玉国,白桦,赵金鱼.外源脯氨酸对盐胁迫下大豆离体胚再生植株生长及渗透调节的影响[J].山西农业大学学报(自然科学版),1999(2). |
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| 作者姓名： | 贺岩 陈云昭 王玉国 白桦 赵金鱼 |
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| 作者单位： | 山西农业大学农学系，山西省阳泉市农牧局 |
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| 摘 要： | 采用组织培养方法研究了盐胁迫下外源脯氨酸对大豆离体胚再生植株生长状况及生理特性的影响。结果表明，盐胁迫下外源脯氨酸减小大豆再生植株茎粗、增大株高、促进根系生长发育；增加游离脯氨酸及可溶性糖的累积，其中前者含量增加显著；促进Ｋ＋、Ｍｇ２＋的吸收，降低Ｎａ＋、Ｃｌ－的含量；增加含水量、降低渗透势。外源脯氨酸有缓解盐害对大豆再生植株渗透胁迫的效应。
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| 关 键 词： | 大豆 外源脯氨酸 盐胁迫 渗透调节 |
Effect of Exogenous Proline on Growth and Osmotic Adjustment in Soybean Regenera Ted
Plantlets from Embroyoes in Vitro Under NaCl-Stress |
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| He Yan,et al..Effect of Exogenous Proline on Growth and Osmotic Adjustment in Soybean Regenera Ted
Plantlets from Embroyoes in Vitro Under NaCl-Stress[J].Journal of Shanxi Agricultural University,1999(2). |
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| Authors: | He Yan |
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| Abstract: | The salt resistance effect of exogenous proline in soybean
regenerated plantlets from embroyoes in vitro on its growth and osmotic adjustment were
studied by means of tissue culture. The results showed that: ①Exogenous proline promoted
the growth of regenerated plantlets under certain salt stress. ②The accumulation of free
proline increased ,as well as soluble sugar; the content of free proline increased remarkably.
③The contents of Na + and Cl - decreased , the contents of K + and Mg 2+ increased in the
plantlets . ④Exogenous proline increased its water contents, reduced its osmotic potential.
Exogenous proline alleviated the osmotic injury caused by salt stress. |
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| Keywords: | Soybean Exogenous proline Salt stress Osmotic adjustment |
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