Effects of UV-B radiation on photosynthesis activity of Wollfia arrhiza as probed by chlorophyll fluorescence transients
文献类型：期刊论文
| 作者 | Wang, Gaohong1; Hao, Zongjie1; Anken, Ralf H.2; Lu, Jinying3; Liu, Yongding1 |
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 45期号:7页码:839-845 |
| 关键词 | UV-B Wolffia arrhiza Photosynthesis Chlorophyll fluorescence transients CO(2) assimilation Photosynthetic pigments |
| ISSN号 | 0273-1177 |
| 通讯作者 | Liu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| 中文摘要 | The higher plant Wolffia arrhiza is regarded to be well suited concerning the provision of photosynthetic products in the cycle of matter of a Controlled Ecological Life Support System (CELSS) to be established in the context of extraterrestrial, human-based colonization and long-term space flight. Since UV radiation is one major extraterrestrial environmental stress for growth of any plant, effects of UV-B radiation on W arrhiza were assessed in the present study. We found that UV-B radiation significantly inhibited photosynthetic CO2 assimilation activity, and the contents of chlorophyll a, chlorophyll b (Chl a, Chl b) and carotenoids considerably decreased when plants were exposed to UV-B radiation for 12 It. High UV-B radiation also declined the quantum yield of primary photochemistry (phi(po)), the quantum yield for electron transport phi(Eo) and the efficiency per trapped excitation (psi(o)) in W. arrhiza simultaneously, while the amount of active PSII reaction centers per excited cross section (RC/CS) and the total number of active reaction centers per absorption (RC/ABS) had comparative changes. These results indicate that the effects of UV-B radiation on photosynthesis of W arrhiza is due to an inhibition of the electron transport and via inactivation of reaction centers, but the inhibition may take place at more than one site in the photosynthetic apparatus. (C) 2009 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 英文摘要 | The higher plant Wolffia arrhiza is regarded to be well suited concerning the provision of photosynthetic products in the cycle of matter of a Controlled Ecological Life Support System (CELSS) to be established in the context of extraterrestrial, human-based colonization and long-term space flight. Since UV radiation is one major extraterrestrial environmental stress for growth of any plant, effects of UV-B radiation on W arrhiza were assessed in the present study. We found that UV-B radiation significantly inhibited photosynthetic CO(2) assimilation activity, and the contents of chlorophyll a, chlorophyll b (Chl a, Chl b) and carotenoids considerably decreased when plants were exposed to UV-B radiation for 12 It. High UV-B radiation also declined the quantum yield of primary photochemistry (phi(po)), the quantum yield for electron transport phi(Eo) and the efficiency per trapped excitation (psi(o)) in W. arrhiza simultaneously, while the amount of active PSII reaction centers per excited cross section (RC/CS) and the total number of active reaction centers per absorption (RC/ABS) had comparative changes. These results indicate that the effects of UV-B radiation on photosynthesis of W arrhiza is due to an inhibition of the electron transport and via inactivation of reaction centers, but the inhibition may take place at more than one site in the photosynthetic apparatus. (C) 2009 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences |
| 类目[WOS] | Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences |
| 研究领域[WOS] | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 关键词[WOS] | CYANOBACTERIUM ANABAENA SP ; J-I-P ; ULTRAVIOLET-B ; SPIRODELA-POLYRHIZA ; OXIDATIVE STRESS ; WOLFFIA-ARRHIZA ; PHOTOSYSTEM-II ; DAMAGE ; PLANTS ; LEVEL |
| 收录类别 | SCI |
| 资助信息 | Chinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688] |
| 语种 | 英语 |
| WOS记录号 | WOS:000276179300003 |
| 公开日期 | 2010-12-23 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/13711]  |
| 专题 | 水生生物研究所_水环境工程研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Biomed Sci Support Ctr, German Aerosp Ctr, Inst Aerosp Med, D-51147 Cologne, Germany 3.Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Gaohong,Hao, Zongjie,Anken, Ralf H.,et al. Effects of UV-B radiation on photosynthesis activity of Wollfia arrhiza as probed by chlorophyll fluorescence transients[J]. ADVANCES IN SPACE RESEARCH,2010,45(7):839-845. |
| APA | Wang, Gaohong,Hao, Zongjie,Anken, Ralf H.,Lu, Jinying,&Liu, Yongding.(2010).Effects of UV-B radiation on photosynthesis activity of Wollfia arrhiza as probed by chlorophyll fluorescence transients.ADVANCES IN SPACE RESEARCH,45(7),839-845. |
| MLA | Wang, Gaohong,et al."Effects of UV-B radiation on photosynthesis activity of Wollfia arrhiza as probed by chlorophyll fluorescence transients".ADVANCES IN SPACE RESEARCH 45.7(2010):839-845. |
入库方式： OAI收割
来源：水生生物研究所
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