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| 水分胁迫对牛心朴子叶片光合色素及叶绿素荧光的影响 | |
| 引用本文： | 何军,许兴,李树华,米海莉,张源沛,赵天成,马有明.水分胁迫对牛心朴子叶片光合色素及叶绿素荧光的影响[J].西北植物学报,2004,24(9):1594-1598. |
| 作者姓名： | 何军 许兴 李树华 米海莉 张源沛 赵天成 马有明 |
| 作者单位： | 1. 宁夏农业生物技术重点实验室,银川,750002 2. 宁夏农林科学院,土壤肥料研究所,银川,750002 3. 宁夏大学,银川,750021 |
| 基金项目： | 国家科技部生物工程中心"863"领域项目,"973"(G1999011704)项目,宁夏自然科学基金项目(C229) |
| 摘 要： | 研究了水分胁迫对牛心朴子叶片光合色素及叶绿素荧光动力学参数的影响。结果表明,在长期的水分胁迫中,牛心朴子叶片的叶绿素a(Chl a)、叶绿素b(Chl b)和类胡萝卜素(Car)含量没有下降或下降不明显。直到处理末期才显著下降;叶片叶绿素荧光动力学参数Fo、Fm、Fv、Fv／Fm变化不大,在处理末期各处理Fo降低,轻度、重度水分胁迫的Fm、Fv、Fv／Fm升高。说明K期水分胁迫后牛心朴子的光合功能受到影响,但牛心朴子仍表现出较强的适应干旱的能力。 |
| 关 键 词： | 牛心朴子 水分胁迫 光合色素 叶绿素荧光动力学参数 |
| 文章编号： | 1000-4025(2004)09-1594-05 |
Effects of water stress on photosynthetic pigment in leaves and chlorophyll fluorescence of Cynanchum komarovii |
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| HE Jun,XV Xing,LI Shu-hua,MI Hai-li,ZHANG Yuan-pei,ZHAO Tian-cheng,MA You-ming in,Soil and Fertilizer Research Laboratory,Ningxia Academy of Agricultural and Forestry Sciences,Yinchuan,Chin,Ningxia University,Yinchuan,Chi.Effects of water stress on photosynthetic pigment in leaves and chlorophyll fluorescence of Cynanchum komarovii[J].Acta Botanica Boreali-Occidentalia Sinica,2004,24(9):1594-1598. | |
| Authors: | HE Jun XV Xing LI Shu-hua MI Hai-li ZHANG Yuan-pei ZHAO Tian-cheng MA You-ming in Soil and Fertilizer Research Laboratory Ningxia Academy of Agricultural and Forestry Sciences Yinchuan Chin Ningxia University Yinchuan Chi |
| Institution: | HE Jun~1,XV Xing~1,LI Shu-hua~1,MI Hai-li~1,ZHANG Yuan-pei~2,ZHAO Tian-cheng~2,MA You-ming~3 ina,2 Soil and Fertilizer Research Laboratory,Ningxia Academy of Agricultural and Forestry Sciences,Yinchuan 750002,China,3 Ningxia University,Yinchuan 750021,China) |
| Abstract: | Effects of water stress on photosynthetic pigment and chlorophyll fluorescence induction kinetic parameter in leaves of Cynanchum komarovii were studied.The results showed the content of chlorophyll a (Chl a),b (Chl b) and carotenoid (Car) in leaves of Cynanchum komarovii did not decrease or decreased little in the course of water stress.But it decreased significantly after a long time of water stress.The chlorophyll fluorescence induction kinetic parameters Fo,Fm,Fv,Fv/Fm changed little.In last stage of all treatments,Fo decreased,but Fm,Fv,Fv/Fm increased under lightly and serious water stress.Which showed the photosynthesis of Cynanchum komarovii would be influenced after a long time of water stress.But Cynanchum komarovii still showed high adaptability to water stress. |
| Keywords: | Cynanchum komarovii water stress photosynthetic pigment chlorophyll fluorescence induction kinetic parameter |
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