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《High Technology Letters》 2002-04
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Study on Induced Synthesis of Anti-UV Substances in the Antarctic Alga

Miao Jinlai  , Li Guangyou , Hou Xuguang  , Zhang Yiping , Jiang Yinghui , Wang Bo , Zhang Botao  ( Marine Life College, Ocean University of Qingdao, Qingdao 266003) (  Key Laboratory of Marine Bio-acti  
antarctic ice algae species (Three kinds of diatoms, Pyramimonas sp. and Chlorophyceae) are cultured with artificial UV-B(312nm) irradiation. We studied the induced synthesis of anti-UV substances in the antarctic alga, which were thought to provide protection against damaging UV-B irradiation. It was shown as following: first, UV-B irradiation induced massive polysaccharides around alga; second, UV-B irradiation induced new water-soluble UV-B-absorbing substances; finally, UV-B irradiation induced new lipid-soluble UV-B-absorbing substances. However, the new pigments produced by different species of antarctic alga have different maximum peak of UV. These results enable us to realize the mechanism of antarctic alga to adapt to environment of the strong irradiation in Antarctic, and furthermore, some new active substances such as anti-irradiation, anti-tumor, and radical quenching may be obtained by culturing antarctic alga with UV irradiation.
【Fund】: 国家 8 6 3计划 ( 86 3 819 Q 17);; 国家海洋局基金 ( 97 12 1)资助项目
【CateGory Index】: Q947.8
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