Spaceflight Microgravity Reduced Photosynthetical Electron Transport and Altered Energy Distribution in Euglena gracilis
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 43期号:9页码:887-894 |
| 关键词 | microgravity photosynthesis chlorophyll a fluorescence Euglena gracilis electron transport |
| ISSN号 | 1000-3282 |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Biochemistry & Molecular Biology ; Biophysics |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Biophysics |
| 关键词[WOS] | PHOTOSYSTEM-I ; FLUORESCENCE MEASUREMENTS ; SALINITY STRESS ; DWARF WHEAT ; PLANTS ; PHYCOBILISOMES ; TRANSIENT ; APPARATUS ; SPACE ; LEAF |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000383939200007 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/28359]  |
| 专题 | 水生生物研究所_水生生物多样性与资源保护研究中心_学位论文 |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：水生生物研究所
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