| 外源ALA对NaCl胁迫下酸枣幼苗叶绿素合成的影响 |
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| 引用本文： | 陈丽靓,孙军利,常心怡,叶家发.外源ALA对NaCl胁迫下酸枣幼苗叶绿素合成的影响[J].新疆农业科学,2022,59(7):1659-1665. |
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| 作者姓名： | 陈丽靓 孙军利 常心怡 叶家发 |
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| 作者单位： | 石河子大学农学院/特色果蔬栽培生理与种质资源利用兵团重点实验室,新疆石河子 832000 |
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| 基金项目： | 国家自然科学基金(31460495);国家自然科学基金(31560542);石河子大学高层次人才科研启动项目(RCZX201520) |
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| 摘 要： | 【目的】研究外源ALA对NaCl胁迫下酸枣幼苗叶绿素合成的影响。【方法】以酸枣水培幼苗为材料,研究外源ALA对NaCl胁迫下酸枣幼苗叶片内源ALA含量、胆色素原含量、原卟啉Ⅸ含量、Mg-原卟啉Ⅸ含量、原叶绿酸酯含量以及叶绿素总含量的影响。【结果】与150 mmol/L NaCl处理相比,外施100 mg/L ALA显著提高了酸枣幼苗的内源ALA含量、胆色素原含量、原卟啉Ⅸ含量、Mg-原卟啉Ⅸ含量、原叶绿酸酯含量、叶绿素a、b含量以及叶绿素总含量,较NaCl处理分别提高44.8%、20.8%、21.2%、26.4%、36.5%、36.0%、38.4%和41.2%;且叶绿素合成受阻位点在ALA向PBG转化过程。【结论】外源ALA可以促进NaCl胁迫下酸枣幼苗叶绿素的合成,促进幼苗生长。
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| 关 键 词： | 5-氨基乙酰丙酸 NaCl胁迫 酸枣 叶绿素合成 |
| 收稿时间： | 2021-10-02 |
Effects of Exogenous ALA on Chlorophyll Synthesis in Jujube Seedlings under NaCl Stress |
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| CHEN Liliang,SUN Junli,CHANG Xinyi,YE Jiafa.Effects of Exogenous ALA on Chlorophyll Synthesis in Jujube Seedlings under NaCl Stress[J].Xinjiang Agricultural Sciences,2022,59(7):1659-1665. |
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| Authors: | CHEN Liliang SUN Junli CHANG Xinyi YE Jiafa |
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| Institution: | Key Laboratory of Cultivation Physiology and Germplasm Resources Utilization of Characteristic Fruits and Vegetables of Xinjiang Production and Construction Corps/College of Agronomy,Shihezi University,Shihezi Xinjiang 832000,China |
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| Abstract: | 【Objective】 To investigate the effect of exogenous ALA on chlorophyll synthesis in jujube seedlings under NaCl stress. 【Methods】 In this experiment jujube seedlings were used as experimental materials by hydroponic to study the content of endogenous ALA, porphobilinogen, protoporphyrin IX, Mg-protoporphyrin IX, protochlorophyll and chlorophyll of jujube seedlings under external spraying of ALA against NaCl. 【Results】 Compared with 150 mmol/L NaCl treatment, application of exogenous spraying of 100 m-g/L ALA significantly increased the endogenous ALA content, porphobilinogen content, protoporphyrin IX content, Mg - protoporphyrin IX content, and protoporphyrin content of jujube seedlings, which were increased by 44.8%, 20.8%, 21.2%, 26.4%, 36.5%, 36.0%, 38.4% and 41.2% respectively compared with NaCl treatment. This study also found that the conversion process of chlorophyll synthesis blocked the site in ALA →PBG. 【Conclusion】 Exogenous ALA can promote the chlorophyll synthesis of jujube seedlings under NaCl stress,thereby promoting the growth of jujube seedlings. |
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| Keywords: | 5-aminolevulinic acid NaCl stress Jujube seedlings chlorophyll synthesis |
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