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紫叶紫薇呈色生理及光合特性研究

冯露 吴际洋 鞠易倩 叶远俊 程堂仁 王佳 潘会堂 张启翔

冯露, 吴际洋, 鞠易倩, 叶远俊, 程堂仁, 王佳, 潘会堂, 张启翔. 紫叶紫薇呈色生理及光合特性研究[J]. 北京林业大学学报, 2017, 39(12): 93-101. doi: 10.13332/j.1000-1522.20170238
引用本文: 冯露, 吴际洋, 鞠易倩, 叶远俊, 程堂仁, 王佳, 潘会堂, 张启翔. 紫叶紫薇呈色生理及光合特性研究[J]. 北京林业大学学报, 2017, 39(12): 93-101. doi: 10.13332/j.1000-1522.20170238
FENG Lu, WU Ji-yang, JU Yi-qian, YE Yuan-jun, CHENG Tang-ren, WANG Jia, PAN Hui-tang, ZHANG Qi-xiang. Leaf color characteristics and photosynthetic characteristics of purple-leafed Lagerstroemia indica 'Ebony Ember'[J]. Journal of Beijing Forestry University, 2017, 39(12): 93-101. doi: 10.13332/j.1000-1522.20170238
Citation: FENG Lu, WU Ji-yang, JU Yi-qian, YE Yuan-jun, CHENG Tang-ren, WANG Jia, PAN Hui-tang, ZHANG Qi-xiang. Leaf color characteristics and photosynthetic characteristics of purple-leafed Lagerstroemia indica 'Ebony Ember'[J]. Journal of Beijing Forestry University, 2017, 39(12): 93-101. doi: 10.13332/j.1000-1522.20170238

紫叶紫薇呈色生理及光合特性研究

doi: 10.13332/j.1000-1522.20170238
基金项目: 

“十二五”国家科技支撑计划课题 2013BAD01B07

详细信息
    作者简介:

    冯露。主要研究方向:花卉种质创新与育种。Email:luyiluyi1314@126.com  地址:100083北京市海淀区清华东路35号北京林业大学园林学院

    责任作者:

    潘会堂,博士,教授。主要研究方向:园林植物与观赏园艺。Email: htpan@bjfu.edu.cn   地址:同上

  • 中图分类号: S685.99

Leaf color characteristics and photosynthetic characteristics of purple-leafed Lagerstroemia indica 'Ebony Ember'

  • 摘要: 紫叶紫薇品种‘Ebony Embers’叶片呈现紫红色,是优良的观叶植物。为了对比紫叶和绿叶紫薇品种的叶色呈现机理和光合特性,以‘Ebony Embers’和绿叶品种‘Arapaho’为试验材料,测定叶片色素含量及分布、可溶性糖含量和光合生理指标。结果表明:1)‘Ebony Embers’叶片中叶绿素、类胡萝卜素及花青苷含量显著高于‘Arapaho’,且花青苷含量的变化与叶片红色程度变化一致,为紫叶呈色的关键色素,主要分布在叶片栅栏组织和海绵组织靠近表皮的部分;2)‘Ebony Embers’叶片可溶性糖显著高于‘Arapaho’,并且在紫叶中可溶性糖含量与花青苷含量呈显著正相关;3)‘Ebony Embers’叶片净光合速率、气孔导度、蒸腾速率日变化均为单峰曲线,而‘Arapaho’均为双峰曲线,‘Ebony Embers’的净光合速率、气孔导度、蒸腾速率始终低于‘Arapaho’,表明‘Ebony Embers’的光合能力低于‘Arapaho’,但其净光合速率的下降与叶绿素含量差异无关。‘Arapaho’光饱和点显著高于‘Ebony Embers’,说明‘Ebony Embers’耐强光的能力较弱;4)2个品种的Fv/Fm值之间没有显著差异,‘Ebony Embers’的叶绿素荧光参数ΦPSII和ETR均显著低于‘Arapaho’,而NPQ和qN则显著高于‘Arapaho’,表明绿叶紫薇PSⅡ电子传递活性较高,而紫叶紫薇的热耗散效率高于绿叶紫薇,拥有更高的光保护能力。研究结果为培育紫薇优良彩叶品种及在园林中的应用提供了科学依据。

     

  • 图  1  紫薇品种‘Ebony Embers’和‘Arapaho’叶片发育过程中叶色变化

    S1、S2、S3、S4、S5分别代表叶片萌发后第5天、第10天、第15天、第20天、第30天。下同。

    Figure  1.  Leaf color changes of Lagerstroemia indica 'Ebony Embers' and 'Arapaho' during leaf development

    S1, S2, S3, S4, S5 represent 5 days, 10 days, 15 days, 20 days, 30 days after budding, respectively. The same below.

    图  2  紫薇品种‘Ebony Embers’和‘Arapaho’叶片发育过程中叶片色素含量变化

    Figure  2.  Pigment content in leaves of Lagerstroemia indica 'Ebony Embers' and 'Arapaho' during leaf development

    图  3  紫薇品种‘Ebony Embers’和‘Arapaho’叶片中色素含量

    Figure  3.  Percentage of pigment contents in leaves of Lagerstroemia indica 'Ebony Embers' and 'Arapaho' during leaf development

    图  4  紫薇品种‘Ebony Embers’和‘Arapaho’叶片可溶性糖含量变化

    Figure  4.  Changes of soluble sugar content in leaves of Lagerstroemia indica 'Ebony Embers' and 'Arapaho' during leaf development

    图  5  紫薇品种‘Ebony Embers’和‘Arapaho’叶片中色素的分布

    Figure  5.  Distribution of pigment in leaves of Lagerstroemia indica 'Ebony Embers' and 'Arapaho' during leaf development

    图  6  紫薇品种‘Ebony Embers’和‘Arapaho’光合参数日变化

    Figure  6.  Diurnal changes of photosynthetic indexes of Lagerstroemia indica 'Ebony Embers' and 'Arapaho'

    图  7  紫薇品种‘Ebony Embers’和‘Arapaho’净光合速率的光、CO2响应曲线

    Figure  7.  Light-response and CO2-response curves of net photosynthetic rate of Lagerstroemia indica 'Ebony Embers' and 'Arapaho'

    表  1  光合指标间的相关性分析

    Table  1.   Correlation analysis of photosynthetic indexes of Lagerstroemia indica 'Ebony Embers' and 'Arapaho'

    指标Index Pn Cs Tr Ci
    Pn 1
    Cs 0.954** 1
    Tr 0.797** 0.762** 1
    Ci -0.276 -0.124 -0.543 1
    注:**表示相关极显著(P < 0.01)。Note: ** means highly significant correlation (P < 0.01).
    下载: 导出CSV

    表  2  紫薇品种‘Ebony Embers’和‘Arapaho’的主要光合参数

    Table  2.   Main photosynthetic indexes of Lagerstroemia indica 'Ebony Embers' and 'Arapaho'

    品种
    Cultivar
    光饱和点Light saturation point/(μmol·m-2·s-1) 光补偿点Light compensation point/(μmol·m-2·s-1) CO2饱和点
    CO2 saturation point/(μmol·mol-1)
    CO2补偿点
    CO2 compensation point/(μmol·mol-1)
    表观量子效率
    Apparent quantum/(mol·mol-1)
    羧化效率
    Carboxylation efficiency/(mol·m-2)
    ‘Ebony Ember’ 1 717.67±64.79 37.87±1.56 1 347±50 76.04±5.38 0.033±0.004 6 0.028±0.004 5
    ‘Arapaho’ 1 952±75.63* 36.16±0.47 1 550±75* 67.17±4.32 0.038±0.007 6 0.062±0.003**
    注:*表示相关显著(P < 0.05),**表示相关极显著(P < 0.01)。下同。Notes: * means significant correlation (P < 0.05), ** means highly significant correlation (P < 0.01). The same below.
    下载: 导出CSV

    表  3  紫薇品种‘Ebony Embers’和‘Arapaho’主要叶绿素荧光参数

    Table  3.   Main chlorophyll fluoresce parameters of Lagerstroemia indica 'Ebony Embers' and 'Arapaho'

    品种Cultivar Fv/Fm Fv/F0 ΦPSⅡ NPQ qN qP ETR
    ‘Ebony Ember’ 0.81±0.01 4.13±0.16 0.26±0.03 2.06±0.64* 0.76±0.07* 0.46±0.01 52.6±5.1
    ‘Arapaho’ 0.8±0.01 3.99±0.26 0.38±0.06* 1.19±0.25 0.63±0.06 0.59±0.09 75.9±12.9*
    下载: 导出CSV
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  • 收稿日期:  2017-07-03
  • 修回日期:  2017-09-22
  • 刊出日期:  2017-12-01

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