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Effects of UV-B radiation on photosynthesis activity of Wollfia arrhiza as probed by chlorophyll fluorescence transients
Wang, Gaohong; Hao, Zongjie; Anken, Ralf H.; Lu, Jinying; Liu, Yongding; Liu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2010
Source PublicationADVANCES IN SPACE RESEARCH
ISSN0273-1177
Volume45Issue:7Pages:839-845
AbstractThe 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.
KeywordUv-b Wolffia Arrhiza Photosynthesis Chlorophyll Fluorescence Transients Co2 Assimilation Photosynthetic Pigments
Department[Wang, Gaohong; Hao, Zongjie; Liu, Yongding] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Anken, Ralf H.] Biomed Sci Support Ctr, German Aerosp Ctr, Inst Aerosp Med, D-51147 Cologne, Germany; [Lu, Jinying] Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100101, Peoples R China
Subject AreaEngineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
Funding OrganizationChinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688] ; Chinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688] ; Chinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688] ; Chinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688]
Indexed BySCI
Language英语
WOS IDWOS:000276179300003
Funding OrganizationChinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688] ; Chinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688] ; Chinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688] ; Chinese Manned Spaceflight Project ; Natural Science Foundation of China [30400093, 30970688]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13711
Collection水环境工程研究中心_期刊论文
Corresponding AuthorLiu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
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,&Liu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.(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.
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