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Virologica Sinica, 19 (1) : 58-61, 2004
Research Article
The Change in Activity of Cyanophage PP by UV and Sunlight Radiation
1. School of Life Science, Central China Normal University, Wuhan 430079, China
2. Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
The results of UV and sunlight on the activity of freshwater cyanophage PP are presented in this paper. Both UV-A and UV-B resulted in significant inactivity of cyanophage, though the effect was different. The outdoor performance showed that the day inactivity rates of cyanophage by sunlight in summer and winter were 88.60% and 58.86%, respectively. It was also found that in spite of the similar sunlight intensity at some time interval in two seasons,the inactivity rate was of a considerable diversity. Different sunlight constituent might be responsible for the diversity. The results were useful for explaining the seasonal change in cyanophage population in freshwater.
Key Words: UV;  Sunlight;  Cyanophage PP;  Inactivity rate
  Published online: 20 Feb 2004
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