| 苦菜耐盐机理初探 |
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| 引用本文： | 聂莉莉,张越,刘仲齐.苦菜耐盐机理初探[J].天津农业科学,2008,14(6). |
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| 作者姓名： | 聂莉莉 张越 刘仲齐 |
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| 作者单位： | 天津市农业生物技术研究中心,天津,300192 |
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| 基金项目： | 天津市农业科学院院长基金
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| 摘 要： | 在水培条件下,研究了不同浓度海盐溶液对苦菜体内游离脯氨酸、Na+含量以及地上部Na+/K+的影响。结果表明:游离脯氨酸是苦菜在盐胁迫下起主要作用的有机渗透调节物质;苦菜根中Na+含量高于叶中Na+含量;随盐浓度增加,苦菜地上部Na+/K+变大,因此,初步认为苦菜是一种拒盐植物。
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| 关 键 词： | 苦菜 游离脯氨酸 Na+含量 地上部Na+/K+ |
Preliminary Study on Mechanism of Salt Tolerance in Sonchus oleraceus L. |
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| NIE Li-li,ZHANG Yue,LIU Zhong-qi.Preliminary Study on Mechanism of Salt Tolerance in Sonchus oleraceus L.[J].Tianjin Agricultural Sciences,2008,14(6). |
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| Authors: | NIE Li-li ZHANG Yue LIU Zhong-qi |
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| Institution: | NIE Li-li,ZHANG Yue,LIU Zhong-qi(Tianjin Research Center of Agriculture Biotechnology,Tianjin 300192,China) |
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| Abstract: | The effects of sea salt solution with different concentrations on free proline,Na + content and Na+/K+ ratio in vegetative parts of Sonchus oleraceus L.treated under water culture were studied.The results showed that free proline contributed to organic osmotic adjustment under salt stress;Na+ content in roots was higher than that in leaves.The Na+/K+ ratio of above ground was in-creased with the increasing of salt concentration.So,it was considered that Sonchus oleraceus L.might be a kind of salt-exclusion ... |
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| Keywords: | Sonchus oleraceus L free proline Na+ content Na+/K+ ratio of above ground |
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