| Spaceflight Microgravity Reduced Photosynthetical Electron Transport and Altered Energy Distribution in Euglena gracilis | |
| Li Xiao-Yan1; Li Gen-Bao2; Li Dun-Hai1; Hao Zong-Jie1; Wang Gao-Hong1; Richter, R. Peter3; Schuster, Martin3; Lebert, Michael3; Liu Yong-Ding2 | |
| 2016-09-01 | |
| Source Publication | PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS
 |
| ISSN | 1000-3282 |
| Volume | 43Issue:9Pages:887-894 |
| Abstract | The effects of 17-day spaceflight microgravity on the photosynthetic activity of Euglena gracilis were investigated during the SIMBOX mission on board the Chinese Shenzhou-8 spacecraft. We found that microgravity decreased Fv/Fm, while chlorophyll a and carotenoid contents were increased. The fluorescence yields were clearly reduced by microgravity, but the shape of fluorescence transients (O-J-I-P) was not changed. The quantum yield of primary photochemistry (cpPo), the quantum yield of electron transport (cpEo) and the performance index of PS II (PIABS and PICS) in microgravity group were decreased, while ABS/RC and DIo/RC were increased. 77K fluorescence emission spectra indicated that microgravity altered energy distribution between PS II and PS I and there are redshifts under microgravity. These results suggested that microgravity may impair photosynthesis by inhibition of acceptor sides of PS II in electron transfer pathway and alter PS I structure to cause a reduction of energy transfer to PS I in Euglena gracilis. |
| Subtype | Article |
| Keyword | Microgravity Photosynthesis Chlorophyll a Fluorescence Euglena Gracilis Electron Transport |
| DOI | 10.16476/j.pibb.2016.0196 |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Indexed By | SCI |
| Funding Organization | Chinese Natural Science Foundation(30970688) ; Chinese Natural Science Foundation(30970688) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; Chinese Manned Spaceflight Project ; Chinese Manned Spaceflight Project ; Chinese Natural Science Foundation(30970688) ; Chinese Natural Science Foundation(30970688) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; Chinese Manned Spaceflight Project ; Chinese Manned Spaceflight Project |
| Language | 英语 |
| WOS Research Area | Biochemistry & Molecular Biology ; Biophysics |
| WOS Subject | Biochemistry & Molecular Biology ; Biophysics |
| WOS Keyword | PHOTOSYSTEM-I ; FLUORESCENCE MEASUREMENTS ; SALINITY STRESS ; DWARF WHEAT ; PLANTS ; PHYCOBILISOMES ; TRANSIENT ; APPARATUS ; SPACE ; LEAF |
| WOS ID | WOS:000383939200007 |
| Funding Organization | Chinese Natural Science Foundation(30970688) ; Chinese Natural Science Foundation(30970688) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; Chinese Manned Spaceflight Project ; Chinese Manned Spaceflight Project ; Chinese Natural Science Foundation(30970688) ; Chinese Natural Science Foundation(30970688) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; Chinese Manned Spaceflight Project ; Chinese Manned Spaceflight Project |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/28359 |
| Collection | 水环境工程研究中心 |
| Affiliation | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 3.Univ Erlangen Nurnberg, Dept Biol, Div Cell Biol, D-91058 Erlangen, Germany |
| Recommended Citation GB/T 7714 | Li Xiao-Yan,Li Gen-Bao,Li Dun-Hai,et al. Spaceflight Microgravity Reduced Photosynthetical Electron Transport and Altered Energy Distribution in Euglena gracilis[J]. PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS,2016,43(9):887-894. |
| APA | Li Xiao-Yan.,Li Gen-Bao.,Li Dun-Hai.,Hao Zong-Jie.,Wang Gao-Hong.,...&Liu Yong-Ding.(2016).Spaceflight Microgravity Reduced Photosynthetical Electron Transport and Altered Energy Distribution in Euglena gracilis.PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS,43(9),887-894. |
| MLA | Li Xiao-Yan,et al."Spaceflight Microgravity Reduced Photosynthetical Electron Transport and Altered Energy Distribution in Euglena gracilis".PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS 43.9(2016):887-894. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 空间飞行微重力降低裸藻光合电子传递并改变（498KB） | 开放获取 | -- | View Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment