| NaCl胁迫对紫穗槐幼苗叶绿素荧光特征的影响 |
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| 引用本文： | 李利,韩张雄,徐新文,李宏,陈宝军.NaCl胁迫对紫穗槐幼苗叶绿素荧光特征的影响[J].北方园艺,2011(2):76-78. |
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| 作者姓名： | 李利 韩张雄 徐新文 李宏 陈宝军 |
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| 作者单位： | 中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011;新疆林业科学院,新疆,乌鲁木齐,830000;新疆策勒县林业局,新疆,策勒,848300 |
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| 基金项目： | 科技部(国家重点基础研究发展规划)资助项目，林业公益性行业科研专项资助项目 |
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| 摘 要： | 通过温室培养方式研究了NaCl胁迫对紫穗槐幼苗PSII叶绿素荧光特征的影响。结果表明:高浓度处理和延长盐分处理时间都导致紫穗槐幼苗叶片最大潜在量子产量Fv/Fm、光响应曲线中初始斜率α与最大电子传递速率的下降,PSII活力的下降说明盐分胁迫,尤其是高浓度长时间的盐分处理已经破坏了紫穗槐叶片的光系统Ⅱ的结构,引起光合潜力下降。尽管有一定的耐盐性,但总体来说,紫穗槐幼苗对盐分胁迫还是比较敏感。
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| 关 键 词： | 紫穗槐 叶绿素荧光 NaCl胁迫 观赏植物 |
Effect of NaCl on Chlorophyll Fluorescence Characteristics of Seedlings in Amorpha fruticosa |
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| LI Li,HAN Zhang-xiong,XU Xin-wen,LI Hong,CHE Bao-jun.Effect of NaCl on Chlorophyll Fluorescence Characteristics of Seedlings in Amorpha fruticosa[J].Northern Horticulture,2011(2):76-78. |
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| Authors: | LI Li HAN Zhang-xiong XU Xin-wen LI Hong CHE Bao-jun |
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| Institution: | LI Li~1,HAN Zhang-xiong~1,XU Xin-wen~1,LI Hong~2,CHE Bao-jun~3 (1.Xinjiang Institute of Ecology and Geography,Science Academy of China,Urumqi,Xinjiang 830011;2.Xinjiang Forestry Academy,Urumqi, Xinjiang 830000;3.Cele Forestry Bureau in Xinjiang,Cele,Xinjiang 848300) |
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| Abstract: | Effect of NaCl on chlorophyll fluorescence characteristics of seedlings in Amorpha fruticosa was investigated by an experiment carried out in greenhouse.The maximum quantum yield(Fv/Fm),the initial slope(a) and the maximum electron transfer rate(Pm) decreased with the NaCl concentration increasing.The 30-day treatment in NaCl solution caused more decline in Fv/Fm than the 15-day treatment.It suggested that high salinity and long period exposed to salt environment inhibited the activity of PSII,resulting in the decrease of the adaptation to light.It was concluded that Amorpha fruticosa can be tolerant to the moderate salt concentration but was sensitive to high salinity. |
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| Keywords: | Amorpha fruticosa chlorophyll fluorescence NaCl stress rapid light curve |
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