[1]郭晶晶,龚丽丽,韩涛,等.叶绿素缺乏对大豆光系统Ⅱ和光能分配的影响[J].大豆科学,2009,28(04):605-610.[doi:10.11861/j.issn.1000-9841.2009.04.0605]
　GUO Jing-jing,GONG Li-li,HAN Tao,et al.Effect of Chlorophyll-deficient on PSⅡ and Distribution Properties of Absorbed Light Energy in Leaves of Soybean[J].Soybean Science,2009,28(04):605-610.[doi:10.11861/j.issn.1000-9841.2009.04.0605]
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叶绿素缺乏对大豆光系统Ⅱ和光能分配的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第28卷 期数: 2009年04期 页码: 605-610 栏目: 出版日期: 2009-08-25
Title:
Effect of Chlorophyll-deficient on PSⅡ and Distribution Properties of Absorbed Light Energy in Leaves of Soybean
文章编号:
1000-9841(2009)04-0605-06
作者:
郭晶晶; 龚丽丽; 韩涛; 张雪; 许晓明
南京农业大学生命科学学院，江苏 南京，210095
Author(s):
GUO Jing-jing; GONG Li-li; HAN Tao; ZHANG Xue; XU Xiao-ming
College of Life Sciences，Nanjing Agricultural University，Nanjing 210095，Jiangsu，China
关键词:
大豆; 叶绿素缺乏; 突变体; PSII反应中心; 光能分配
Keywords:
Soybean; Chlorophyll-deficient; Mutant; PSⅡ reaction centers; Distribution of light energy
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.04.0605
文献标志码:
A
摘要:
研究田间条件下大豆叶绿素缺乏突变体以及野生型叶片逐步展开过程中的叶绿素含量、气体交换、叶绿素荧光动力学等特性，并分析了二者在叶片展开过程中吸收光能分配的差异。结果表明：叶绿素缺乏导致突变体大豆有活性的PSⅡ反应中心数目减少，每个反应中心的光能吸收和激发能捕获增加，但是PSⅡ电子传递受阻，致使每个反应中心的激发能耗散增加。与野生型相比，突变体大豆叶片所吸收的能量中分配给热耗散的能量较多，而过剩的激发能较少；同时随着叶绿素含量降低，光合电子传递中向光呼吸分配的比例增大。
Abstract:
The chlorophyll contents，gas exchange and chlorophyll fluorescence kinetics were extensively studied in chlorophyll-deficient mutant soybean leaves and its wild-type from emergency to full expansion under field conditions.The difference of the absorbed light distribution between two soybean varieties during the development of leaves was also assessed.Results showed that chlorophyll deficient induced a decrease of PSⅡ reaction centers，and resulted in an increase of excited energy capture per active reaction centers.It also showed that PSⅡ electron transport was blocked apparently，and the energy dissipation increased per PSⅡ reaction centers.Compared with wild-type soybean，the mutant had less excitation energy and the fraction of absorbed light allocated to energy dissipation.Furthermore，with the deficiency of the chlorophyll content allocation of photosynthetic electron transport to photorespiration was enhanced.

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备注/Memo

作者简介：郭晶晶（1980-），女，硕士研究生。研究方向为光合生理。E-mail:jerry9988@sohu.com。

通讯作者：许晓明。 E-mail:xuxm@njau.edu.cn。

更新日期/Last Update: 2014-09-21