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| 外周天线色素分子间的能量传递 | |
| 引用本文： | 贺俊芳,王水才,任兆玉,蔡霞,辛越勇,匡廷云. 外周天线色素分子间的能量传递[J]. 光子学报, 2002, 31(6): 668-671 |
| 作者姓名： | 贺俊芳 王水才 任兆玉 蔡霞 辛越勇 匡廷云 |
| 作者单位： | 1. 中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安710068;西北大学生物学系,西安,710069 2. 中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安710068 3. 中国科学院植物研究所,北京,100093 |
| 基金项目： | 国家重点基础研究专项经费 (G1 9980 1 0 1 0 0 )资助项目 |
| 摘 要： | 依据外周天线LHCII的吸收光谱和解叠谱,将LHCII中大量的色素分子分为4类色素分子团,建立了色素分子团的能量传递模型,并分别在436nm、480nm激励光下,对它的荧光光谱进行了研究,436nm和480nm激励下的荧光光谱相比要弱,可能是由于436nm激励下,受激的一部分色素分子的振动自由度比较大,产生了激发态到基态的无辐射内转换,使得能量传递几率降低.同时也说明,不同色素分子间的能量传递几率是不同的. |
| 关 键 词： | 外周天线 LHCII 能量传递 荧光光谱,吸收光谱 |
| 收稿时间： | 2001-09-19 |
| 修稿时间： | 2001-09-19 |
ENERGY TRANSFER BETWEEN PIGMENT MOLECULES OF OUTER ANTENNA |
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| He Junfang,Wang Shuicai,Ren Zhaoyu,Cai Xia,Xin Yueyong,Kuang Tingyun. ENERGY TRANSFER BETWEEN PIGMENT MOLECULES OF OUTER ANTENNA[J]. Acta Photonica Sinica, 2002, 31(6): 668-671 | |
| Authors: | He Junfang Wang Shuicai Ren Zhaoyu Cai Xia Xin Yueyong Kuang Tingyun |
| Affiliation: | 1. State Key Laboratory of Transient Optics and Technology Xi′an Institute of Optics and Precision Mechanics, Chinese Academy of Science, P. O. Box 80, Xi′an 710068, P. R. China;2. Northwest University, Xi′an 710069, P. R. China;3. Photosynthesis Research Center, Institute of Botany, Chinese Academy of Science Bejing 100093, P. R. China |
| Abstract: | The pigment molecules of outer antenna LHCⅡ were divided into four groups according to the absorption spectrum and the resolved spectra.The model of energy transfer between the four groups was made.Also the fluorescence spectra of LHCⅡ were studied with exciting light 436,480nm.The fluorescence with 436nm exciting was weaker than with 480nm.The reason was that a part of pigment molecules excited by 436nm light were in the state of big vibration freedom which lead of to the without emission inner-transform from the first excitation state to the ground state.At last the probability of energy transfer was fallen.Also at the same time,it was clear the probailities of energy transfer between different pigment molecules were different. |
| Keywords: | LHCII |
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