Effects of different aggregation forms of LHC II from Bryopsis corticulans on the excited state properties of Chl a
文献类型：期刊论文
| 作者 | Zuo Ping; Chen Hui; Wu Yishi; Shen Shihua; Wang Peng; Al Xicheng; Zhang Jianping; Li Liangbi; Kuang Tingyun |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 51期号:12页码:1444-1451 |
| 关键词 | Light-harvesting Complex Ii (Lhc Ii) Time-resolved Fluorescence Energy Transfer Bryopsis Corticulans |
| ISSN号 | 1001-6538 |
| DOI | 10.1007/s11434-006-1444-2 |
| 英文摘要 | Steady-state and time-resolved fluorescence spectroscopies have been used to study the excited state properties of Chi a in different aggregation forms of light-harvesting complex 11 (LHC 11) from an intertidal green alga, Bryopsis corticulans, i.e. LHC 11 monomer, trimer and oligomer. When either Chi a or Chi b was selectively excited, the observed decrease in Chi a fluorescence in the oligomer is proved to be caused mainly by the fast fluorescence quenching among Chi a molecules, rather than by the decrease in Chi b-to-Chl a singlet excitation transfer efficiency. Analyses of the picosecond time-resolved fluorescence kinetics identified two exponential decay components in all of the three forms of LHC 11: a longer-lived component (4.1-4.7 ns) originating from fluorescence emission of Chi a, and a shorter-lived one (135-540 ps) from the rapid equilibration of singlet excitation among Chi a molecules. The time constant of excitation equilibration is 135 ps in olligomer, 520 ps in trimer and 540 ps in monomer. These results imply that LHC 11 in oligomer form is inherently able to quench Chi a excitation, a mechanism which may be related to the photoprotection of PS 11 via changing the degree of LHC 11 aggregation in Bryopsis corticulans. |
| 语种 | 英语 |
| WOS记录号 | WOS:000239619800007 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58279]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Chen Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Photosynth & Environm Mol Physiol, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Stable & Unstable Speci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo Ping,Chen Hui,Wu Yishi,et al. Effects of different aggregation forms of LHC II from Bryopsis corticulans on the excited state properties of Chl a[J]. CHINESE SCIENCE BULLETIN,2006,51(12):1444-1451. |
| APA | Zuo Ping.,Chen Hui.,Wu Yishi.,Shen Shihua.,Wang Peng.,...&Kuang Tingyun.(2006).Effects of different aggregation forms of LHC II from Bryopsis corticulans on the excited state properties of Chl a.CHINESE SCIENCE BULLETIN,51(12),1444-1451. |
| MLA | Zuo Ping,et al."Effects of different aggregation forms of LHC II from Bryopsis corticulans on the excited state properties of Chl a".CHINESE SCIENCE BULLETIN 51.12(2006):1444-1451. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。