| 毛竹茎秆发育过程中不同节间叶绿素荧光的变化 |
| |
| 引用本文： | 王柯杨,卜柯丽,马元丹,栗青丽,王灵杰,高岩,高海波,张汝民.毛竹茎秆发育过程中不同节间叶绿素荧光的变化[J].浙江农林大学学报,2019,36(4):697-703. |
| |
| 作者姓名： | 王柯杨 卜柯丽 马元丹 栗青丽 王灵杰 高岩 高海波 张汝民 |
| |
| 作者单位： | 1.浙江农林大学 林业与生物技术学院, 浙江 杭州 3113002.临沂大学 生命科学院, 山东 临沂 276000 |
| |
| 基金项目： | 国家自然科学基金资助项目31570686浙江省省院合作林业科技资助项目2016SY06山东省自然科学基金资助项目ZR2014CL030 |
| |
| 摘 要： | 为了揭示毛竹Phyllostachys edulis快速生长期茎秆不同节间叶绿素荧光特征，以毛竹笋竹茎秆为材料，用YZQ-500型非调制式叶绿素荧光仪和JIP-test数据分析方法，研究了茎秆不同节间光合色素质量分数和叶绿素荧光参数的变化特征。结果显示:随着节间的升高，毛竹笋竹茎秆中叶绿素a，叶绿素b和类胡萝卜素质量分数显著下降（P < 0.05）；单位面积捕获的光能（TRo/CSo），单位面积电子传递的量子产额（ETo/CSo），PSⅡ反应中心吸收光能用于电子传递的量子产额（φEo），PSⅡ最大光化学效率（φPo），光合性能指数（PIABS）和反应中心数量（RC/CSo）显著下降（P < 0.05）；用于热耗散的量子比率（φDo），单位面积热耗散（DIo/CSo）和单位反应中心耗散掉的能量（DIo/RC）显著上升（P < 0.05），表明茎秆上下部节间的生长发育存在明显差异，中下部节间PSⅡ反应中心活性较强，光能转换效率较高，能量耗散较少，生长较快；上部节间光合功能相对较弱，生长比较缓慢。研究成果对明确毛竹快速生长机制具有参考价值。
|
| 关 键 词： | 植物学 毛竹 茎秆 节间 叶绿素 叶绿素荧光 |
| 收稿时间： | 2018-08-02 |
Changes of chlorophyll fluorescence in different internodes during Phyllostachys edulis stem development |
| |
| WANG Keyang,BU Keli,MA Yuandan,LI Qingli,WANG Lingjie,GAO Yan,GAO Haibo,ZHANG Rumin.Changes of chlorophyll fluorescence in different internodes during Phyllostachys edulis stem development[J].Journal of Zhejiang A&F University,2019,36(4):697-703. |
| |
| Authors: | WANG Keyang BU Keli MA Yuandan LI Qingli WANG Lingjie GAO Yan GAO Haibo ZHANG Rumin |
| |
| Institution: | 1.School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China2.College of Life Science, Linyi University, Linyi 276000, Shandong, China |
| |
| Abstract: | To reveal the chlorophyll fluorescence characteristics of different internodes in the rapid growth period of Phyllostachys edulis, P. edulis shoots and stems were used as materials. The changes of the photosynthetic pigment content and chlorophyll fluorescence parameters for different internodes were studied by using a non-modulated chlorophyll fluorescence (YZQ-500) and the JIP-test data analysis method. Results showed that the content of chlorophyll a, chlorophyll b, and carotenoid in P. edulis stems significantly decreased (P < 0.05) with an increase of internodes. Light energy captured per unit area (TRo/CSo), quantum yield of electron transport per unit area (ETo/CSo), quantum yield of PS Ⅱ reaction center absorbing light energy for electron transfer (φEo), photosynthetic performance index (PIABS), and number of reaction centers (RC/CSo) significantly decreased (P < 0.05). Quantum for heat dissipation ratio (φDo), heat dissipation per unit area (DIo/CSo), and unit reaction center of wasted energy (DIo/RC) significantly decreased (P < 0.05). Since growth and development of the top and bottom internodes of P. edulis revealed activity in the middle and lower internodes having a stronger PS Ⅱ reaction center, a higher light energy conversion efficiency, and less energy dissipation enabling faster growth rates, and since photosynthetic functions of upper internodes were relatively weak meaning growth was slower, this study could be used as a reference value for clarifying the growth mechanism of P. edulis. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《浙江农林大学学报》浏览原始摘要信息 |
| 点击此处可从《浙江农林大学学报》下载免费的PDF全文 |
|
