| NaCl胁迫对毛白杨试管小植株叶片离子吸收及荧光诱导动力学参 … |
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| 引用本文： | 梁海永,李会平.NaCl胁迫对毛白杨试管小植株叶片离子吸收及荧光诱导动力学参 …[J].河北林果研究,1999,14(3):199-203. |
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| 作者姓名： | 梁海永 李会平 |
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| 作者单位： | 河北农大林学院林业生物技术实验室!保定071000 |
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| 摘 要： | 为更好地利用盐渍化土壤，培育耐盐植株，以毛白杨试管小植株为材料，对ＮａＣｌ胁迫下小植株叶片、离子吸收及荧光诱导动力学参数进行了研究，结果表明，ＮａＣｌ胁迫下，随培养基中ＮａＣｌ浓度的增加，毛白杨试管小植株叶片中Ｋ＾＋含量逐渐减少，Ｎａ＋含量逐渐递增。培养基中ＮａＣｌ浓度达到０．３％时，随叶序由顶叶至基叶，Ｋdisplay status
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| 关 键 词： | NaCl胁迫 K^＋ Na^＋ 荧光诱导 动力学参数 毛白杨 |
| 修稿时间： | 1999-03-25 |
EFFECTS OF NaCl STRESS ON K~+,Na~+ AND CHLOROPHYLL A FLUORESCENCE INDUCTION KINETICS IN LEAVES OF IN VITRO POPLAR PLANTLETS |
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| Liang Haiyong,Li Huiping,Yang Minsheng,Zheng Junbao.EFFECTS OF NaCl STRESS ON K~+,Na~+ AND CHLOROPHYLL A FLUORESCENCE INDUCTION KINETICS IN LEAVES OF IN VITRO POPLAR PLANTLETS[J].Hebei Journal of Forestry and Orchard Research,1999,14(3):199-203. |
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| Authors: | Liang Haiyong Li Huiping Yang Minsheng Zheng Junbao |
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| Abstract: | Under salt stress, the K + content in the leaves of Populus tomentosa in vitro plantlets decreased with increasing NaCl in the medium, and the Na + content increased. With NaCl in medium increased to 0 3%, the K + content decreased from top leaves to basal ones, but the Na + content was in reverse. The determination of chlorophyll a fluorescence induction kineties in the leaves under salt stress showed that the potential activity( Fv/Fo )of PSII, efficiency of primary conversion of light energy( Fv/Fm ) and fluorescence decline ratio( Fd/Fs )decreased. |
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| Keywords: | NaCl stress K + Na + fluorescence induction kinetics |
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