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| Effects of solar ultraviolet radiation on the photochemical efficiency, photosynthetic pigments and biomass production of Spirulina platensis | |
| 引用本文： | WU Hongyan,GAO Kunshan,Teruo WATANABE. Effects of solar ultraviolet radiation on the photochemical efficiency, photosynthetic pigments and biomass production of Spirulina platensis[J]. 自然科学进展(英文版), 2005, 15(5): 477-480. DOI: 10.1080/10020070512331342430 |
| 作者姓名： | WU Hongyan GAO Kunshan Teruo WATANABE |
| 作者单位： | Marine Biology Institute, Shantou University, Shantou 515063, China,Marine Biology Institute, Shantou University, Shantou 515063, China;Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China,Hainan DIC Microalgae Co. Ltd., Haikou International Commercial Centre 38, Haikou 570102, China |
| 摘 要： | Effects of solar ultraviolet radiation (UVR) on Spirulina platensis were studied by investigating its photochemical efficiency, photosynthetic pigments and biomass production while exposed to full spectrum solar radiation or depleted of UVR for understanding how and to what extent UVR influences its photosynthetic physiology and production. It was found that UVR brought about an extra inhibition of photochemical efficiency by 26%—30%. The greatest inhibition of photochemical efficiency in S. platensis was observed at noontime, and then recovered to some extent in late afternoon no matter which treatment they were exposed to. The contents of chlorophyll a, phycocyanin and carotenoids increased during initial stage of the exposure, but decreased with elongated exposure. UVR decreased the biomass yield by about 6%. It indicated that filtering out UVR of solar radiation would raise the productivity of S. platensis, which is an important factor that should be considered in the production. |
| 关 键 词： | ultraviolet radiation Spirulina platensis photochemical efficiency biomass production pigments. |
Effects of solar ultraviolet radiation on the photochemical efficiency, photosynthetic pigments and biomass production of Spirulina platensis |
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| Wu Hongyan,GAO Kunshan,Teruo WATANABE. Effects of solar ultraviolet radiation on the photochemical efficiency, photosynthetic pigments and biomass production of Spirulina platensis[J]. Progress in Natural Science, 2005, 15(5): 477-480. DOI: 10.1080/10020070512331342430 | |
| Authors: | Wu Hongyan GAO Kunshan Teruo WATANABE |
| Affiliation: | 1. Marine Biology Institute, Shantou University, Shantou 515063, China 2. Marine Biology Institute, Shantou University, Shantou 515063, China;Institute of Hydrobiology, Chinese Academy of Sciences,Wuhan 430072, China 3. Hainan DIC Microalgae Co. Ltd., Haikou International Commercial Centre 38, Haikou 570102, China |
| Abstract: | Effects of solar ultraviolet radiation (UVR) on Spirulina platensis were studied by investigating its photochemical efficiency, photosynthetic pigments and biomass production while exposed to full spectrum solar radiation or depleted of UVR for understanding how and to what extent UVR influences its photosynthetic physiology and production. It was found that UVR brought about an extra inhibition of photochemical efficiency by 26 %-30 %. The greatest inhibition of photochemical efficiency in S. platensis was observed at noontime, and then recovered to some extent in late afternoon no matter which treatment they were exposed to. The contents of chlorophyll a, phycocyanin and carotenoids increased during initial stage of the exposure, but decreased with elongated exposure. UVR decreased the biomass yield by about 6 %. It indicated that filtering out UVR of solar radiation would raise the productivity of S. platensis,which is an important factor that should be considered in the production. |
| Keywords: | ultraviolet radiation Spirulina platensis photochemical efficiency biomass production pigments |
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