The state transition mechanism - simply depending on light-on and -off in Spirulina platensis
文献类型：期刊论文
| 作者 | Li, Heng; Li, Donghui; Yang, Shuzhen; Xie, He; Zhao, Jingquan |
| 刊名 | BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
 |
| 出版日期 | 2006-11-01 |
| 卷号 | 1757期号:11页码:1512-1519 |
| 关键词 | Energy Spillover Mobile Phycobilisome Oligomerization Photosystem i Photosystem Ii State Transition |
| ISSN号 | 0005-2728 |
| DOI | 10.1016/j.bbabio.2006.08.009 |
| 英文摘要 | The state transition in cyanobacteria is a long-discussed topic of how the photosynthetic machine regulates the excitation energy distribution in balance between the two photosystems. in the current work, whether the state transition is realized by "mobile phycobilisome (PBS)" or "energy spillover" has been clearly answered by monitoring the spectral responses of the intact cells of the cyanobacterium Spirulina platensis. Firstly, light-induced state transition depends completely on a movement of PBSs toward PSI or PSII while the redox-induced one on not only the "mobile PBS" but also an "energy spillover". Secondly, the "energy spillover" is triggered by dissociation of PSI trimers into the monomers which specially occurs under a case from light to dark, while the PSI monomers will re-aggregate into the trimers under a case from dark to light, i.e., the PSI oligomerization is reversibly regulated by light switch on and off. Thirdly, PSI oligomerization is regulated by the local H+ concentration on the cytosol side of the thylakoid membranes, which in turn is regulated by light switch on and off. Fourthly, PSI oligomerization change is the only mechanism for the "energy spillover". Thus, it can be concluded that the "mobile PBS" is a common rule for light-induced state transition while the "energy spillover" is only a special case when dark condition is involved. (c) 2006 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000242668800009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58003]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhao, Jingquan |
| 作者单位 | Chinese Acad Sci, Inst Chem, Photochem Lab, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Heng,Li, Donghui,Yang, Shuzhen,et al. The state transition mechanism - simply depending on light-on and -off in Spirulina platensis[J]. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,2006,1757(11):1512-1519. |
| APA | Li, Heng,Li, Donghui,Yang, Shuzhen,Xie, He,&Zhao, Jingquan.(2006).The state transition mechanism - simply depending on light-on and -off in Spirulina platensis.BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,1757(11),1512-1519. |
| MLA | Li, Heng,et al."The state transition mechanism - simply depending on light-on and -off in Spirulina platensis".BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1757.11(2006):1512-1519. |
入库方式： OAI收割
来源：化学研究所
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