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COMBINED EFFECTS OF ULTRAVIOLET RADIATION AND TEMPERATURE ON MORPHOLOGY,PHOTOSYNTHESIS AND DNA OF ARTHROSPIRA (SPIRULINA) PLATENSIS(CYANOPHYTA)

Teruo Watanabe  E.Walter Helbling  
【摘要】:正Natural levels of solar UVR were shown to break and alter the spiral structure of Arthrospira(Spirulina)platensis(Nordstedt)Gomont during winter.However,this phenomenon was not observed during summer at temperature of about 30℃.Since little has been documented on the interactive effects of solar UV radiation(280-400

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