| 柳树叶浸提液对四尾栅藻生长特性及光合效率的影响 |
| |
| 引用本文： | 郭沛涌,李庆华,苏东娇,田美燕.柳树叶浸提液对四尾栅藻生长特性及光合效率的影响[J].激光生物学报,2011,20(4):455-461. |
| |
| 作者姓名： | 郭沛涌 李庆华 苏东娇 田美燕 |
| |
| 作者单位： | 华侨大学化工学院环境科学与工程系,福建厦门,361021 |
| |
| 基金项目： | 国家自然科学基金资助项目(项目编号:20777021); 教育部重点科技项目(项目编号:210253); 福建省自然科学基金计划资助项目(项目编号:D0610012,2010J01043) |
| |
| 摘 要： | 以四尾栅藻（Scenedesmusquadncauda）为研究对象，应用柳树（sn如babylonica）叶浸提液研究了其对四尾栅藻密度、细胞形态、叶绿素含量及光合效率的影响。结果表明：各浓度柳树叶浸提液处理组四尾栅藻密度均低于对照组，且较高浓度浸提液处理组藻密度更低。浓度为10g／L、20g／L和30g／L的柳树叶浸提液对四尾栅藻的最大抑制率分别为47．0％、54．6％和62．3％。根据浓度一效应关系方程，计算出对应的柳叶浸提液96h对四尾栅藻的半效应浓度（EC，。值）为23．32g/L.加入柳树叶浸提液后，四尾栅藻细胞边缘变得不规则，细胞体变透明，部分细胞溶解。在柳树叶浸提液作用下四尾栅藻叶绿素a含量始终保持在很低的水平。lO∥L、20∥L和30∥L处理组叶绿素含量最低分别为173．12t,g／L、124．18斗∥L、37．62斗g／L。实验开始第ld后各浓度柳树叶浸提液处理组Fv／Fm显著下降（P〈0．01），第24d柳树浸提液浓度效应较为明显，大致是浸提液浓度越高，四尾栅藻PSⅡ最大光合效率越低。
|
| 关 键 词： | 化感作用 四尾栅藻 柳树 浸提液 光合效率 |
Effects of Salix babylonica Leaf Extracts on the Growth and Photosynthetic Efficiency of Scenedesmus quadricauda |
| |
| GUO Peiyong,LI Qinghua,SU Dongjiao,TIAN Meiyan.Effects of Salix babylonica Leaf Extracts on the Growth and Photosynthetic Efficiency of Scenedesmus quadricauda[J].ACTA Laser Biology Sinica,2011,20(4):455-461. |
| |
| Authors: | GUO Peiyong LI Qinghua SU Dongjiao TIAN Meiyan |
| |
| Institution: | GUO Peiyong,LI Qinghua,SU Dongjiao,TIAN Meiyan (Department of Environmental Science and Engineering,College of Chemical Engineering,Huaqiao University,Xiamen 361021,Fujian,China) |
| |
| Abstract: | Allelopathy of Salix babylonica leaf extracts on Scenedesmus quadricauda was studied,including the effects on cell density,growth and morphology,Chlorophyll a concentration and photosynthetic efficiency.The results revealed that the cell densities of Scenedesmus quadricauda in the treatment groups of extracts with different concentrations were all lower than those of the control group,which no extract was added.Moreover,the cell density in the treatment group with higher extract concentration was much lower... |
| |
| Keywords: | allelopathy Scenedesmus quadricauda Salix babylonica extracts photosynthetic efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
