| 外源甜菜碱对盐胁迫下枸杞光合功能的改善 |
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| 引用本文： | 惠红霞,许兴,李前荣.外源甜菜碱对盐胁迫下枸杞光合功能的改善[J].西北植物学报,2003,23(12):2137-2142. |
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| 作者姓名： | 惠红霞 许兴 李前荣 |
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| 作者单位： | 1. 宁夏农业生物技术重点实验室,银川,750002
2. 宁夏大学,农学院,宁夏永宁,750105 |
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| 基金项目： | 国家重点基础研究发展规划项目(G1999011700 ) |
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| 摘 要： | 研究了外源甜菜碱对盐胁迫下枸杞扦插苗叶片光合功能的影响。结果表明，外源甜菜碱能使盐胁迫下的枸杞叶片叶绿素荧光动力学参数Fo、Fm、Fv、Fv／Fm、Fm／Fo和Fv／Fo增高，使光合色素叶绿素a(Chla)、叶绿素b(Chlb)和类胡萝卜素(Car)含量明显增加，叶绿素a与b的比值(Chla／Chlb)升高，类胡萝卜素与叶绿素的比值(Car／Chl)降低，说明外源甜菜碱有利于植物对光能的捕获、吸收、传递和转换，提高叶片的光合活性，降低盐胁迫对植物的抑制作用。
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| 关 键 词： | 甜菜碱 枸杞 盐胁迫 叶绿素荧光动力学参数 光合色素 光合功能 |
| 文章编号： | 1000-4025(2003)12-2137-06 |
| 修稿时间： | 2003年2月24日 |
Exogenous betaine improves photosynthesis of Lycium barbarum under salt stress |
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| HUI Hong-xia,XU Xing,LI Qian-rong Agricultural College,Ningxia Univeristy,Yongning,Ningxi,China.Exogenous betaine improves photosynthesis of Lycium barbarum under salt stress[J].Acta Botanica Boreali-Occidentalia Sinica,2003,23(12):2137-2142. |
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| Authors: | HUI Hong-xia XU Xing LI Qian-rong Agricultural College Ningxia Univeristy Yongning Ningxi China |
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| Institution: | HUI Hong-xia~1,XU Xing~1,LI Qian-rong~2 2 Agricultural College,Ningxia Univeristy,Yongning,Ningxia 750105,China) |
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| Abstract: | Effects of exogenous betaine on the photosynthesis in Lycium barbarum seedlings under salt stress were studied.The results showed that betaine could enhance chlorophyll fluorescence induction kinetics parameters Fo,Fm,Fv,Fv/Fm,Fm/Fo and Fv/Fo,increase chlorophyll a (Chl a),b (Chl b),carotenoid (Car) and the ratios of chlorophyll a and b (Chl a/Chl b) and decrease the ratios of carotenoid and chlorophyll (Car/Chl) of leaves of Lycium barbarum under salt stress.These results provided that exogenous betaine could improve the activity of photosynthetic and light energy conversion of Lycium barbarum seedlings under salt stress. |
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| Keywords: | betaine Lycium barbarum salt stress chlorophyll fluorescence induction kinetics parameter photosynthetic pigment |
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