| High-light induced singlet oxygen formation in cytochrome b(6)f complex from bryopsis corticulans as detected by epr spectroscopy | |
| Sang, Min1,5; Ma, Fei2; Xie, Jie3; Chen, Xiao-Bo4; Wang, Ke-Bin1; Qin, Xiao-Chun1; Wang, Wen-Da1; Zhao, Jing-Quan3; Li, Liang-Bi1; Zhang, Jian-Ping2 | |
| 刊名 | Biophysical chemistry
 |
| 2010 | |
| 卷号 | 146期号:1页码:7-12 |
| 关键词 | Chlorophyll a Cyt b(6)f Singlet oxygen Photo-bleaching Epr |
| ISSN号 | 0301-4622 |
| DOI | 10.1016/j.bpc.2009.09.012 |
| 通讯作者 | Li, liang-bi(lbli@ibcas.ac.cn) |
| 英文摘要 | Electron paramagnetic resonance (epr) spectroscopy was used to detect the light-induced formation of singlet oxygen (o-1(2)center dot) in the intact and the rieske-depleted cytochrome b(6)f complexes (cyt b(6)f) from bryopsis corticulans, as well as in the isolated rieske fe-s protein. it is shown that, under white-light illumination and aerobic conditions, chlorophyll a (chl a) bound in the intact cyt b(6)f can be bleached by light-induced o-1(2)center dot, and that the 10; production can be promoted by d2o or scavenged by extraneous antioxidants such as l-histidine, ascorbate, beta-carotene and glutathione. under similar experimental conditions, o-1(2)center dot was also detected in the rieske-depleted cyt b(6)f complex, but not in the isolated rieske fe-s protein. the results prove that chl a cofactor, rather than rieske fe-s protein, is the specific site of o-1(2)center dot formation, a conclusion which draws further support from the generation of o-1(2)center dot with selective excitation of chl a using monocolor red light. (c) 2009 elsevier b.v. all rights reserved. |
| WOS关键词 | PHOTOSYSTEM-II ; RHODOPSEUDOMONAS-SPHAEROIDES ; PHOTOSYNTHETIC BACTERIA ; SPINACH-CHLOROPLASTS ; SUPEROXIDE RADICALS ; ENERGY-TRANSFER ; CHLOROPHYLL-A ; PROTEIN ; WATER ; BACTERIOCHLOROPHYLL |
| WOS研究方向 | Biochemistry & Molecular Biology ; Biophysics ; Chemistry |
| WOS类目 | Biochemistry & Molecular Biology ; Biophysics ; Chemistry, Physical |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000272440400002 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2406794 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Liang-Bi |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Photosynth & Environm Mol Physiol, Beijing 100093, Peoples R China 2.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China 3.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing 100080, Peoples R China 4.Hebei Univ Sci & Technol, Sch Biosci & Engn, Shijiazhuang 050018, Hebei Province, Peoples R China 5.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sang, Min,Ma, Fei,Xie, Jie,et al. High-light induced singlet oxygen formation in cytochrome b(6)f complex from bryopsis corticulans as detected by epr spectroscopy[J]. Biophysical chemistry,2010,146(1):7-12. |
| APA | Sang, Min.,Ma, Fei.,Xie, Jie.,Chen, Xiao-Bo.,Wang, Ke-Bin.,...&Kuang, Ting-Yun.(2010).High-light induced singlet oxygen formation in cytochrome b(6)f complex from bryopsis corticulans as detected by epr spectroscopy.Biophysical chemistry,146(1),7-12. |
| MLA | Sang, Min,et al."High-light induced singlet oxygen formation in cytochrome b(6)f complex from bryopsis corticulans as detected by epr spectroscopy".Biophysical chemistry 146.1(2010):7-12. |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
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。
修改评论